Bought my GT42R, It will be here tomorrow [Archive] - Bimmerforums

MrBlonde

02-16-2005, 04:14 PM

Whats everones thoughts on the specs for the GT45R I got?
GT style t flange with large 5" V- BAND DISCHARGER (1.15AR).
Turbine
-Wheel: 82mm
-Housing: 1.15ar
Compressor
-Wheel: 94mm w/ 56 trim
-Housing: .66 ar
It's a massive turbo, far too big for a street car, but good for a race car.

The 2JZ Supra guys are a few years in front of us and they love the GT42R. Their engines are similar to ours, 3.0 litres compared to 3.2 litres. I'd say this turbo will work even better on the BMW engine.

With the 5" discharge you'll need to fit a massive dump pipe. I can't see that happening without a tubeframe front end unless the turbo is mounted somewhere I haven't thought of. It's also got a 5" snout and a 3.5" compressor outlet. The piping will need to be correspondingly huge. Fitting it all under your hood without cutting away all the stock front end will be a challenge.

You may also be looking at a hit of nitrous in order to spool the sucker for a good launch. I am particularly interested to see what the lag characteristics are and how the turbine spools with RPM. Some datalogging would be nice.

Great experiment, love to see the progress and the results.

One thing is for sure, the turbo is rated at 1,000 bhp at 1 bar and that's a shedload of power. Some reckon the S50 and S52US blocks are good up to 850-900 bhp. I guess we will see soon!

card counter

02-17-2005, 04:52 AM

Awesome, going crazy on a bimmer. I cant help on deciding wich one but
will give props. Its about time some one went more a race oriented set up.
Not caring about low to mid and shooting for all out hp.We want to see
big hp and low et :alright :alright

///3oris

02-17-2005, 10:49 AM

:eek: Are you going to chronicle it? I'm assuming you're going with a Boostlogic, Bavariacars or a custom manifold?

That's insanely huge... good luck! :)

Boris

=BA=

02-17-2005, 11:21 AM

How the hell do you control 1000 RWHP in a E36 M3 chassis??? :eek: That's just insane :eek:

BTW wasn't the GT42R the same turbo MertDastan used for his M3, blowing up 2 engines in 2 weeks time?

ShawnsM

02-17-2005, 11:45 AM

Mr B, yea big tubes all around. I think I'll sqeeze it in there, your right though the 5" dump is REALLY big, I got's that shit though I think. I plan on starting it fairly low at 500-600 and tune it from there, on up to where ever she will go.

Everybody else,

Laggy, maybe but there are several factors. NO2 would spool that bad boy. My heads good to 12K RPM's, not that I'm going to be testing that! My compression won't be as low as most, giving mo power down low-mid as well.

I'm NOT doing this to an E36, It's an M Roadster :devillook , not a very "girly" car anymore. The 95 M3 is going to 400-450 for now.

I'm going to chronicle it as best I can. If Boostlogic or Someone else wants to sponsor (not expecting a free ride) me and build the piping I want then I'm game, otherwise I've got some friends, that have friends, that do some shit.

I'm not in a rush to beat anyone to 1KWHP, as it was put so well before, when I'm done it will have been there and beyond. As ImportedCars do I have ALOT on my plate, I work on the road during the week, getting married in October, tons of other items, another car to build out, ect... I think the biggest issue will be the custom Iconel Manifold mounting this big mofo where I want it, thats a secret for now :D .

Just so it's understood, I'm not doing this to debate who can go faster on this or any other board, or who's kid can beat up the other guys kid. I'm doing it because I REALLLY like picking on Non-BMW's at the Strip. And because I think its about time BMW stepped up to the plate with the Japs, they got rice, we got Krout. And for the Big Iron, well it is STILL true there is no replacement for displacement, but I'd love to see the come to a track with me :nono .

Plus, girls get wet when they see my lil Blue Monster shoot down the track. The days of picking on Z3's are OVER, nuff said :redspot ... Anyway I have an M3 as well now so it's all good.

Another thought I hadn't mentioned, if this trim doesn't give me what I want I'll simply change it, like an old girlfriend that just didn't fit right.

Keep the feedback comming!

slvr98 M

02-17-2005, 12:50 PM

GG///M3

02-17-2005, 12:53 PM

JBgotM

02-17-2005, 01:21 PM

Well Shawn you have gotten my attention. Since this place is local, I will be paying them a visit in the near future to discuss a few things. Not exactly 1000rwhp, I will let you have that glory but just to see what they are talking about. It would be great to have a shop in my backyard that can do stuff like this. I will see what kind of formula they can come up with. :evil2
I have gotten some work done there too. Its a good group of guys that have their stuff together.

Good luck Shawn, I can't wait to come see it again. oh and gimme a call when you get a chance.

EZ 2002

02-17-2005, 05:09 PM

You've got a good attitude in regards to your car and your goals Shaun good luck with it all! It will be interesting to see how your car comes together over the coming months.

You’re on a similar mission to what Mr Blonde is on in Australia.
When he first pulled up at the strip some of the V8 guys gave him funny looks,
thinking what’s a pretty BMW doing at the drag strip?
After he ran a few passes they didn't want to line up against him in the staging lanes anymore!

hukalaki

02-17-2005, 05:29 PM

Shawn,

Great project! That turbo is going to be a monster. Keep us all posted, and let us know when you have the old motor torn down. The pics of that will be very enlightneing.

ham

m3ltw98

02-17-2005, 06:02 PM

Sounds like a great project but your valve springs are rated to 12000 rpm, not the entire head. At 12k, the valves, retainers, keepers will be demolished in a blink of an eye. Even if you went to solid lifters like many BMWCCA club racers do, their good up to 8-8300rpm. Just a little headsup. Goodluck :)

DefactoM6

02-17-2005, 06:50 PM

Good point...unless he's converted to solid lifters, and hasn't told us? :devillook

MrBlonde

02-17-2005, 07:46 PM

..
Just so it's understood, I'm not doing this to debate who can go faster on this or any other board, or who's kid can beat up the other guys kid. I'm doing it because I REALLLY like picking on Non-BMW's at the Strip. And because I think its about time BMW stepped up to the plate with the Japs, they got rice, we got Krout. And for the Big Iron, well it is STILL true there is no replacement for displacement, but I'd love to see the come to a track with me
..

Good attitude. I share your love of lining up 400ci Chev small block racecars at the strip. The look on their face when you come past them in the top end is gratifying!

And you're right, it's about time the BMWs took it to the Japs.

Spargo

02-17-2005, 07:53 PM

I expect pictures, movies, times, and more things to make me wet my britches.

<3 Adrian

Carzzi

02-18-2005, 12:02 AM

...
...

Plus, girls get wet when they see my lil Blue Monster shoot down the track.

....
if this trim doesn't give me what I want I'll simply change it, like an old girlfriend that just didn't fit right.

Bwaaaahahahahahaahahaaa :rofl Does that blue monster have balls the same colour? :evil2

ShawnsM

02-18-2005, 11:07 AM

Bwaaaahahahahahaahahaaa :rofl Does that blue monster have balls the same colour? :evil2

LOL, I was wondering if someone would make a comment like that. I think chick dig it because its like a Falic(sp?) symbol subliminaly to them :stickoutt .

JB, Man, I sorry for not calling I'm up to my ears with stuff going on, I need to let you in on some bad news that happened to someone you met while down here.

Let's see about the other Q'/Comments:
Yup, I have Solid Shim Under Bucket in the valve train.
Beefed up Timing Chains.
TI Retainers and "other" hardware there.
Don't plan on spinning past 8300-8600 RPMS, depends on what the engine harmonics sound like on the Dyno.
Dual pickup oil feeds.

Thanks for the comments,

KPIKEVIN

02-18-2005, 12:57 PM

Look what just showed up here today!!!!!

BIG is an UNDERSTATEMENT.

I present the GT-42R for shawns monster.

http://xs16.xs.to/pics/05075/DSCN1065.jpg

http://xs16.xs.to/pics/05075/DSCN1067.jpg

http://xs16.xs.to/pics/05075/DSCN1068.jpg

http://xs16.xs.to/pics/05075/DSCN1066.jpg

///3oris

02-18-2005, 01:18 PM

Where do you guys plan on mounting that? :devillook

Boris

ShawnsM

02-18-2005, 02:35 PM

KPIKEVIN

02-18-2005, 02:37 PM

Where there is a will there is a way...

It WILL fit it just a matter of how hard it will be to make it fit --- or a matter of what we need to cut to get it there

Anyways I could not help my self I had to take it apart and see what was inside of it... I'm sorry Shawn sometimes I just can't handle it, it's a bad habit but I had to DISASSEMBLE!!!

http://xs16.xs.to/pics/05075/DSCN1069_resize.JPG

http://xs16.xs.to/pics/05075/DSCN1070_resize.JPG

http://xs16.xs.to/pics/05075/DSCN1071_resize.JPG

http://xs16.xs.to/pics/05075/DSCN1072_resize.JPG

http://xs16.xs.to/pics/05075/DSCN1073_resize.JPG

http://xs16.xs.to/pics/05075/DSCN1074_resize.JPG

ShawnsM

02-18-2005, 02:38 PM

Holy shit thats Coke Can Porn! LOL

No need to be sorry, your just making me want to leave my F-ing job early! Thats BAD ASSSSSSSSSSS. Makes a T-60 look like a real snail :alright

IMPORTEDCARS

02-18-2005, 03:07 PM

Sup Kevin, DAMN that is big Mofo. I can't wait to GTF out of work now to come up there. The Angel Eyes and HID's should show today too for the M3 :D .

Boris, honestly we don't know :devillook , but we have a few good idea's and a plasma torch :ky :werd: .

I gotta pack my crap for going out of town next week then I'll try to sneak out of this joint early.
Mount it on topp some how, remove the headlight assenbly and fabricate some kind of manifold for a good mounting position, and remove the hood and turn up the BOOST!! :alright P.S make sure the chair dosent tear of the floor once its hooked and moving. :)

///3oris

02-18-2005, 03:22 PM

There are plenty of Supra's and other high HP cars which cut holes in their hood and have the turbo stick out not just for the space, but also the fresh air.

Boris

KPIKEVIN

02-18-2005, 03:33 PM

JBgotM

02-18-2005, 04:03 PM

If there is one thing that for sure Shawn is not scared to cut up a car. His favorite tools in my shop include the air saw, Cut-off wheel, and the best to him THE PLASMA CUTTER, I think he gets a wood just seeing someone use it, i won't even discuss what he does when he gets to use it???
yeah, it seems anytime I needed to mess with anything, Shawn pulls out the plasma cutter ;)

I can't wait to see where that thing sits, good thing your engine bay is stripped, you will beed the space.

ShawnsM

02-18-2005, 04:12 PM

ShawnsM

02-18-2005, 04:15 PM

If there is one thing that for sure Shawn is not scared to cut up a car. His favorite tools in my shop include the air saw, Cut-off wheel, and the best to him THE PLASMA CUTTER, I think he gets a wood just seeing someone use it, i won't even discuss what he does when he gets to use it???

That thing Rocks, 1/8" Steel plate like butta, Fenders like Water, Stock rear sway endlinks like air. The smile on Kevins face while I'm catching shit on fire,,,, "Priceless".

Concentric190

02-18-2005, 04:47 PM

Congratulations Shawn! Hope your project goes good! ITs about time someone in the US got the balls to do something like this.

JBgotM

02-18-2005, 05:25 PM

Well, the light holes are out cause they are HID's (Hmm JB?Hint Hint :evil2 ), I can always torch the stock hood, but it is Sooo puurrty and it's heavy, or I could say tikcuf and dice up the TC Kline Hood and just mount it Chevy Blower style :buttrock .

I think I may know anotha place....

tikcuf I'm leaving work now;-).
Shawn, I have a spare set of hedlights from my wreck that you could look at buchering if you wanted, I may need to keep the centerpiece, but the front cover and rear mounting section can go (the rear mounting section has some of the pastic pieces broken, but I doubt you care).

moadster

02-19-2005, 04:19 AM

We have used a dual ball bearing GT42-76 on a fully built supra and it made close to 1000whp on just boost, and 1132 on a 100 shot. Turbo doesn't make any power untill after 6000, and that is on a 1.05 turbine housing and only a 76mm compressor wheel.

Are you going to keep the stock displacement of 3.2? I would like to see how the longer stroke of the s52 holds up to 9k rpm and 1000whp.

What do you plan on doing for drivetrain upgrades? I've blown up 2 diffs in my car already and I'm only making half of the power you want. Traction should also be fun, that same supra stated above spins through 4th and some of 5th on 26X11.5 ET streets. :D

Well good luck with it all, it will be an interesting project none the less. :cool

KPIKEVIN

02-19-2005, 01:58 PM

I don't think we will be spinning it to 9K, I don't think it would be smart nor would it be making any power there worth revving it that high.

The car already has a gear set and quaiffe diff with a massive rear end hanger and dual ear rouge diff cover, we already ripped the factory rear diff hanger out this year at the first race we took it to. Those are the same tires Shawn has on the roadster to, we were spinning to about mid way through third with around 530 whp this year. It will be fun to see what it does though!!! :D :D :D

swyyyguy

02-19-2005, 02:17 PM

nice lookin' turbo! gosh that thing is huge.

ShawnsM

02-19-2005, 03:39 PM

It's all good Moadster, lets not this go down the road alot of people talked about before I made runs last year. Everyone saying the rods can't handle it, the pistons can't handle, the diff, ect. I think I'm beyond that, like you we know whats up and will handle things as the car progress's. We all know stuff's going to break, I'll let everybody know at what point what breaks and I'll fix it and go back for more.

When I started all this it was too see what the car stock parts could take, and prove it with pics, plots, and dyno graphs. After that I wanted to let the community as a whole know what I chose to do to fix it, thats it. As for the motor and if it will boost or not, I'll guess we will see, you may be right, but as you pointed out this is fairly uncharted terratory for a BMW and only a few of us are actually doing this instead of talking about it (your one of the few),only time will tell. Please no comparisons to Supras, yet, different cars.

I gotta go for now,

moadster

02-19-2005, 06:52 PM

hukalaki

02-19-2005, 06:59 PM

I just got back from visiting with Shawn and Kevin at Knowledge Performance. These are a couple of cool guys. Kevin and Trace (?) at KP showed me around the place. It is a huge shop with all the toys and obvious quality throughout. It is all about turbos--lots of different cars, mostly japanese, and one very intersting BMW M roadster. They have full capabilities for custom fab work in-house, as well as the usual dyno tuning, laser alignment etc. I think I'll be very comfortable having them help me with my turbo here in Atlanta.

Shawn showed me the blue beast, the motor (yes, both are now separated) and the turbo. That motha' is HUGE. I mean really huge. And it weighs probably 30 or 40lbs. whoa. :eek:

On the motor--it is not yet torn down--the blowby from the exhaust was very evident. Hopefully his new manifold will seat -- or hold down-- a little better.

I look forward to a lot more from Shawn and Kevin in the near future. And I can't wait to get my project started! :alright

paul e

02-19-2005, 07:01 PM

HEY!!!! GEt that impellor out of there.. I want mine with the new Coke Can impellor like in the pic! Have your coke and drive it too :)

Ryan-N-Austin

02-19-2005, 11:23 PM

Nah, I have alot of faith in the BMW s52 motor, I know it can hold alot of power, and I guess you will be prooving that soon.

I just can wait to see the results, a 2800lb car and 1000whp, looks your aiming for the low to mid 8s.

Low to mid 8's, as long as it doesnt spin like your car, or any other street car with that amount of power.

Have fun with your useless car :)

ShawnsM

02-20-2005, 12:43 AM

Low to mid 8's, as long as it doesnt spin like your car, or any other street car with that amount of power.

Have fun with your useless car :)

I don't think it will hit 8's anytime soon. How would you know how my car currently (or ever has) spins? I guess you never saw the video and how well it actually hooked at 560WHP, the ONLY reason it ONLY went to 11.11 @ ~130MPH was due to the exhaust manifold taking a crap and blowing holes through the welds on the prototype manifold I was loaned. Even with lost compression on 4 Cylinders it STILL went 11.11.

As for useless car I guess you’re in your teens or early 20's and just have to talk trash because you can't do much else. The car has a very good purpose, I guess you don't share the same opinion, which is fine, why bother posting in the FI section?

As for "Street" car, it hasn't been a true street car in over 2 years. It is however completely setup for road racing, Auto-X, or Drag. I could easily detune the car with another map and take it to Road Atlanta, VIR, or any other track if I wanted too. I believe I was/am one of two people running 285/30/18 Hoosiers on the car, one of very few that has FI a Roadster, and I believe 1 of 3 that have seen past 11.5 in one. Been there done that, and will continue to do it in my M3. the Roadster is going to play with Supra's, Chevy's, and a few Ricers now.

I'm done wasting my time replying to posts like this. It's a waste of time, and you probably got what you wanted by provoking me in such a childish manor.

Funny I'm going to be an hour from Austin on Business next week, I've said it before people shouldn't burn bridges, you never know what bridge your burning for your future. It will make since when you grow up.

Also, (and I'm not bragging, it just happens to be relevant) so there are no comments about "That laggy Turbo wouldn't do this or that on a Road/Auto-X course" thats the reason I have multiple (of each)motors, Turbos, Injectors, rear ends, Ring/Pinions, quaifes, exhausts, tranny's, and Advanced Design Ground control/Regular Track/School suspensions, and a ton of other race parts that are interchangable between two different cars.

ShawnsM

02-20-2005, 01:02 AM

For the Non-Hater's out there, I have pics of the old Roadster top end now, it was the head gasket it seems. Yea, I have ARP studs and an MLS gasket ready to go back on it. I'll post the pic's in the other threads and crosslink here once I get home and resize the pics.

Got some pics of the exhaust manifold leakage and carbon blow by due to it and several of the head gasket and where it blew into the cylinders in several places.

slvr98 M

02-20-2005, 01:05 AM

Ryan-N-Austin

02-20-2005, 01:16 AM

I don't think it will hit 8's anytime soon. How would you know how my car currently (or ever has) spins? I guess you never saw the video and how well it actually hooked at 560WHP, the ONLY reason it ONLY went to 11.11 @ ~130MPH was due to the exhaust manifold taking a crap and blowing holes through the welds on the prototype manifold I was loaned. Even with lost compression on 4 Cylinders it STILL went 11.11.

As for useless car I guess you’re in your teens or early 20's and just have to talk trash because you can't do much else. The car has a very good purpose, I guess you don't share the same opinion, which is fine, why bother posting in the FI section?

As for "Street" car, it hasn't been a true street car in over 2 years. It is however completely setup for road racing, Auto-X, or Drag. I could easily detune the car with another map and take it to Road Atlanta, VIR, or any other track if I wanted too. I believe I was/am one of two people running 285/30/18 Hoosiers on the car, one of very few that has FI a Roadster, and I believe 1 of 3 that have seen past 11.5 in one. Been there done that, and will continue to do it in my M3. the Roadster is going to play with Supra's, Chevy's, and a few Ricers now.

I'm done wasting my time replying to posts like this. It's a waste of time, and you probably got what you wanted by provoking me in such a childish manor.

Funny I'm going to be an hour from Austin on Business next week, I've said it before people shouldn't burn bridges, you never know what bridge your burning for your future. It will make since when you grow up.

Also, (and I'm not bragging, it just happens to be relevant) so there are no comments about "That laggy Turbo wouldn't do this or that on a Road/Auto-X course" thats the reason I have multiple (of each)motors, Turbos, Injectors, rear ends, Ring/Pinions, quaifes, exhausts, tranny's, and Advanced Design Ground control/Regular Track/School suspensions, and a ton of other race parts that are interchangable between two different cars.

Hey man, I beleive you took my post in completely the wrong way...

I love what you're doing with your car, I enjoy watching the build up of yours unfold here, and blaise's (moadster) in person.

I meant useless in the nicest way possible, as in, you'll have too much power, and wont be able to put it down. I did indeed see your videos, your car definatly moves.

Perhaps we can meet up when you are near austin, Im sure my Z06 will be done by then, and you can get a taste of what a fast car feels like ;)

Ryan-N-Austin

02-20-2005, 01:18 AM

Shawn please dont let the haters get the best of you. They are out there and with alot of envy and jealousy. You are about to accomplish something that they can only dream of. Keep up the good work, I think it will be more than what you expect.

I assume this is semi-directed towards me...

Such a pompous attitude, considering you dont know a single thing about me. Dream to build such a car? Dream to build such power? Hardly. I guess unlike you, I live in a town where 600,700,800, and 1100+ hp cars are becoming a "norm", and I am in that "norm".

slvr98 M

02-20-2005, 01:23 AM

I assume this is semi-directed towards me...

Such a pompous attitude, considering you dont know a single thing about me. Dream to build such a car? Dream to build such power? Hardly. I guess unlike you, I live in a town where 600,700,800, and 1100+ hp cars are becoming a "norm", and I am in that "norm".

Hey man, Shawn and I both and I am quite sure whomever reads your previous post took it in a negative way. That is the reason why he responded in such a manner and I did as well. Noone knows how the hell you really felt in your post so yes I responded about it and will continue to do so whether its you or anyone else.

And besides you done know me neither, nor do you know where I live besides I dont give a s**t where you do. Talk about pompous attitude.

ShawnsM

02-20-2005, 03:04 AM

Ok, thanks for the explination Ryan, and thanks for the backup slvr98 M. I did assume "Useless Car" was meant as an insult, it's all good now that you explained it, thanks and let move on. All is good, water under the bridge.

I love Z06's, probably my next toy (Next Gen), great bang for the buck. Nimble and fast. Right now, I'm enjoying being the "odd" one with the Bimmer(s) at the track;-).

take care,

Ryan-N-Austin

02-20-2005, 06:03 AM