What would you be willing to pay for a bolt on turbo kit ?
what is a good average price?
and what is too much for our wallets?
Twin turbo setup.:redspot

I wouldn't do it, even if it were only $100. A "generic bolt-on system" can't be what it really needs to be.

Also, you are asking what is "too much for our wallets" You need to ask what is too much for your wallet, unless of course you are somehow thinking we are buying it for you.

OK A system built to the M70 engine better put.Everyone wants differnt variations but the Basics , foundation is the same.Still same reaction?
Also i dont think many people will cough up 10,000 for a turbo kit on a motor with average high miles.
Or am i wrong?

Well, if DINAN were still doing M70's I would spend $10,000 for the TT set-up. I have been in touch with the guy that did Jim's K55 motor, and he would build me one of those for $10,000, so I guess the answer to your question would be: yes, there are folks that would spend $$ for the right stuff.

Elementary my dear Watson! This is not only a top consumer Question but also a key gamble of all manufacturers loss & gain. What is our cost, what is our profit and is there a demand! At times Demand is high but in time demand falls short with the manufacturer barely breaking even. Lets say our series was as popular as the 3series. Much more demand, more availability and more affordable product. Than of course there's a human role in all this. I recall when one of my turbos went out on my GNX and I did't hesistate spending $3400. Some people would think I'm crazy to spend that kind of money. I for one would think the same thing if a women spent the same amount of money on a purse. Everyone has their limit when it comes to their niche. I for one wouldnt invest in the upgrade. I like my cars the way they are. But don't get me wrong if my supercharger went out in my koenigsegg ccx I'd drop 12g's to replace it in a heartbeat.

p.s. How much is too much to spend on a date?

But don't get me wrong if my turbo went out in my koenigsegg ccx I'd drop 12g's to replace it in a heartbeat.

p.s. How much is too much to spend on a date?

The CCX isn't turbocharged. It's twin supercharged.

How much to spend on a date? Not too much or it will cost you that much from then on!

8Tech.

ty tech...its been a long week.:cool

http://images1.zoomonga.com/photos1/09dce1c0-ee8c-43a0-b39a-0e2e5dd316d5_small.jpeg
p.s. there's an experiment with both
http://images1.zoomonga.com/photos1/7b41f518-e356-4498-9a42-d1fadf8a9739_small.jpeg:eyecrazy

ty tech...its been a long week.:cool

http://images1.zoomonga.com/photos1/09dce1c0-ee8c-43a0-b39a-0e2e5dd316d5_small.jpeg
p.s. there's an experiment with both
http://images1.zoomonga.com/photos1/7b41f518-e356-4498-9a42-d1fadf8a9739_small.jpeg:eyecrazy

Absolutely mate, no worries.

To answer the original thread question, if you could predict how many you could sell at a particular price of anything you would be onto a winner, but it doesn't quite work like that. With a turbo kit for our cars, there is so much to consider. You can do it properly with the best materials and design or you can do it on a budget to make more profit. You can make it powerful, and blow mechanically unsympathetic owners engines, or mild and then it's a waste of effort.

It is this dilemma that determined that I would NOT offer my supercharger kit (project) as a kit. This is built with design concerns first, cost secondary.
For example, braided aeroquip oil lines, titanium fasteners, powder coated mountings, dowelled fixings, T-bar hose clamps, chargecooling etc.

I want my kit to be the best design and quality I am capable of as I do not intend selling the car so I want reliability and that does not come cheap.

You could probably achieve similar results with painted brackets, normal hose clips, no intercooling and rubber oil hoses and save a packet but in my opinion, if its worth doing, its worth doing right. Rusty brackets and bolts, hoses popping off, split hoses? No thanks.

Twin Turbo on a budget..........$6000
Twin Turbo done properly........$10000

Thats my guess.

8Tech.

You don't want Dinan doing it for ya :) I actually called Dinan a little while ago because my friend wanted it done to his 850.

He said that it would be very very hard for them to do it again, even if they were to do them it would probably cost around $60,000.

Keep in mind that the stage 2 turbo's for the 850 cost about $35,000 when they first came out.

Great work Sir. With that are you willing to share the design specs so other folks can replicate the same work? For a cost of course. I mean I can see why you don't wanna put a SC kit together for comercial use but nothing prevents you sharing the design ?
I would do it if I was as skilled and smart as you are.

Cheers

Absolutely mate, no worries.

To answer the original thread question, if you could predict how many you could sell at a particular price of anything you would be onto a winner, but it doesn't quite work like that. With a turbo kit for our cars, there is so much to consider. You can do it properly with the best materials and design or you can do it on a budget to make more profit. You can make it powerful, and blow mechanically unsympathetic owners engines, or mild and then it's a waste of effort.

It is this dilemma that determined that I would NOT offer my supercharger kit (project) as a kit. This is built with design concerns first, cost secondary.
For example, braided aeroquip oil lines, titanium fasteners, powder coated mountings, dowelled fixings, T-bar hose clamps, chargecooling etc.

I want my kit to be the best design and quality I am capable of as I do not intend selling the car so I want reliability and that does not come cheap.

You could probably achieve similar results with painted brackets, normal hose clips, no intercooling and rubber oil hoses and save a packet but in my opinion, if its worth doing, its worth doing right. Rusty brackets and bolts, hoses popping off, split hoses? No thanks.

Twin Turbo on a budget..........$6000
Twin Turbo done properly........$10000

Thats my guess.

8Tech.

Even if you were to create a 'bolt on' turbo or supercharger system for around $10k... you should still keep in mind that other upgrades will also be needed. For instance, I don't see why anyone would bother getting up near 500hp without a LSD. If its a manual, you will probably have clutch issues to deal with. How about extra cooling for the oil?

When all is said and done, there is quite a bit involved and you will probably be up between $15k and $20k. I'm not sure I would put that kind of money into my '91 850i with 150k on the clock... which is probably worth less then $10 on its own!

-JRW

SHEESH with all that enthusiasm should i hang my self now or wait more more depressing posts on this matter... :(
IMO ideas should be cultivated not filibustered in to the Ahhh forget it catagory.I thought you guys all loved your cars as much as i do.How can you put a price on something that brings you joy???You would never say aww man look at all the money i blew on my kids schooling... Its an investment ,unless you are giving up on the whole thing. Then ok...

...which is probably worth less then $10 on its own!

-JRW

owning a 850 is always going to make you loose about 10grand.
i don't see a problem in sinking in 10 grand and have a very unique car.

owning a 850 is always going to make you loose about 10grand.
i don't see a problem in sinking in 10 grand and have a very unique car.

Haha... I meant that its probably worth less then $10k at this point.... just being realistic!

Listen, having a twin turbo M70 is sweet. Its quiet, tame.... and extremely powerful. I simply feel that no one is going to make a kit because of the costs associated with the 'complete' system.... which I think should include more then just the turbos and piping.

JohnInDC has two supercharger systems ready to go for the M70 which should provide a good deal of power. That might be a good way to go for you guys...

-JRW

JohnInDC has two supercharger systems ready to go for the M70 which should provide a good deal of power. That might be a good way to go for you guys...

-JRW

rumor only-the kit is apx 6k.

...Rumor has it: Stage I is $6K (more or less), Stage II is $8K.

...just rumor though, now where did I put my checkbook??

...Rumor has it: Stage I is $6K (more or less), Stage II is $8K.

...just rumor though, now where did I put my checkbook??

Didn't realize it was a rumor... I thought he had actually sold a kit or two already.

As for the price... if that includes head unit, lines and fittings, belt, brackets, piping, software.... and probably an intercooler for the Stage II... then that is right in line with what supercharger kits of other cars go for.

-JRW

SHEESH with all that enthusiasm should i hang my self now or wait more more depressing posts on this matter... :(
IMO ideas should be cultivated not filibustered in to the Ahhh forget it catagory.I thought you guys all loved your cars as much as i do.How can you put a price on something that brings you joy???You would never say aww man look at all the money i blew on my kids schooling... Its an investment ,unless you are giving up on the whole thing. Then ok...

Don't hang yourself just yet...lol I understand where you're coming from. A friend of mine has this Installed in a different vehicle but he claims its a universal unit. If you can find room to put it this might brighten your day.
http://images1.zoomonga.com/photos1/bbfa1f0f-2803-40a9-bcba-28a9481613a4_small.jpeghttp://images1.zoomonga.com/photos1/0531c61b-cdcb-4480-901e-58d42c7b63f1_small.jpeg
http://images1.zoomonga.com/photos1/84c3f8dd-351b-4a89-b111-5c089f604a13_small.jpeghttp://images1.zoomonga.com/photos1/6729b7fd-e9c2-4a71-8354-be8a87a9abc9_small.jpeg
http://images1.zoomonga.com/photos1/8efb44e9-b720-443c-ac10-d0731b853b30_large.jpeg

Am I being enthusiastic?
Price? $2995.00 :buttrock

I saw a similar set up on a speed garage program, They did it on a Vette.

I saw the Speed Garage episode. Very interesting.

I saw the Speed Garage episode. Very interesting.

i posted about the speed garage episode...lol it was a sts squirer

Yes, thanks for posting that episode. 'Twas a real treat and certainly got my forced induction fantasies started up again :buttrock

Don't hang yourself just yet...lol I understand where you're coming from. A friend of mine has this Installed in a different vehicle but he claims its a universal unit. If you can find room to put it this might brighten your day.


Am I being enthusiastic?
Price? $2995.00


Wow... turbo lag must be HUGE with that setup! Surely you want to keep the pipework from turbo to inlet as short as possible, and also lose as much exhaust heat from manifold to turbo as possible (basically the turbo is being driven using the waste energy from the exhaust). Seems a crazy idea to me fitting the turbo at the back of the car, on a front engined car.

they said that turbo lag wasn't all that bad.
but there are a lot of cons
one of where the turbos sit, right under two plastic tanks full of gas.
not a good idea to me

Hey I'm just trying to be enthusiastic! There's 1 perfect spot for this set-up but unfortunately its where the cats are. Another spot would be behind the gas tanks where the mufflers go. If you look at the graph the lag is minimal. It would sound wicked if it was in place of the mufflers.

is there enough room where the cats are?
but that's a loooootta heat under ones a$$

Hey I'm just trying to be enthusiastic! There's 1 perfect spot for this set-up but unfortunately its where the cats are. Another spot would be behind the gas tanks where the mufflers go. If you look at the graph the lag is minimal. It would sound wicked if it was in place of the mufflers.
With these kits you have to delete the mufflers and they go into place of the mufflers ,the distance of the turbo from the exhaust manifold means that you dont have to have an intercooler because the long pipe cools and the turbo is soooo far that the exhaust isnt as hot s being bolted on the engine

I still think it is ALOT of piping though. It seems very similar to trying to siphon gas with a 100 foot garden hose, when really a few feet work much better....

just posted pics.... it is alot of piping but its all about the right turbos for the job.
Some turbos that spool fast is what will make this work the best, theres some you tube vids too
http://www.youtube.com/watch?v=p-BMmv7J-9k&NR=1

You know there was a guy on roadfly that was working on a rear mounted turbo. Go to roadfly and do a search for Hoffman. I believe it was Hoffman tuning. Good luck. I looked he is there. Regards Carter

the more, i think about these turbos, the less i like the idea.
and i was so enthusiastic in the beginning.
this whole thing may be something for a track car project...
but not feasable for a car, that gets driven on regular road and traffic
conditions, IMHO at least.

Emailed Hoffman. Will get back to everyone with reply if there is one. Cheers. Carter

Perhaps someone wants to e-mail these guys, informing them of 8 series community demand for a Turbo "kit" ??

They are looking for people to donate certain model cars to help them R&D fitted kits:

http://www.ststurbo.com/wanted_cars

Maybe the 8 series can make it on that list? Update: Just sent an e-mail asking about their interest in developing an 8-series kit. Will wait to see what their response is!

I submited carspanics email for the study.:D

I submited carspanics email for the study.:D

:eek: oh oh, i hope they won't come here one night
and turn my car into a corvette.:eyecrazy

:eek: oh oh, i hope they won't come here one night
and turn my car into a corvette.:eyecrazy


you should be so lucky!

:eek: oh oh, i hope they won't come here one night
and turn my car into a corvette.:eyecrazy

Well you can always just say..um no ;)

Well you can always just say..um no ;)

maybe i am going to say: i am so lucky...lol you guys rock

hmmmmm... i had a very intersting conversation.
the only concern i have is the noise and the shielding of the fueltank.
the price for a twin turbo package sounded actually very feasable.
the only thing will be the tuning, and that could be salty.
but who would be interested? uz4play how bout you?
me 1 (copy and paste)

hmmmmm... i had a very intersting conversation.
the only concern i have is the noise and the shielding of the fueltank.
the price for a twin turbo package sounded actually very feasable.
the only thing will be the tuning, and that could be salty.
but who would be interested? uz4play how bout you?
me 1 (copy and paste)

Yeah I'm down:buttrock on my 91 850i m70
I have to change my valve seals soon. But I have a set of other heads I can swap. Let me know cause I go on Vacation starting 2DAY. :D

I am down too. 91 850i M70. I think that 5 pounds of boost should give a nice increase in hp and torque numbers

there was a setup for e36 almost finished. however, they abandoned it
before the engine management was ready.
but i sort of sparked it again.
it works on a FAST engine management system. and that would actually be
perfect to be used as a twin set up.
and all of it is really descently priced.
i also have something to get my temperature issue under control
i don't know how much it would be of an issue but i wanted something
to protect the plastic fuel tank.

there was a setup for e36 almost finished. however, they abandoned it
before the engine management was ready.
but i sort of sparked it again.
it works on a FAST engine management system. and that would actually be
perfect to be used as a twin set up.
and all of it is really descently priced.
i also have something to get my temperature issue under control
i don't know how much it would be of an issue but i wanted something
to protect the plastic fuel tank.

The FAST XFI system is sweet but very expensive. I run it on one of my corvettes that is supercharged with nitrous. You will like all of its features and ease of tuning... but will hate the price!

-JRW

I have a Dinan TT now. It runs great.... after we put stronger head bolts all way around, new chain, upgraded turbos, different fuel management, free flow exhaust, new electric fan only, methanol injection and a good radar detector!
We are in process of building another 6sp car I bought cheap cheap. The turbos are mounted up where the lights used to be. Lights are now static mounted where the park/fog lights were. It looks hot and the goal is 700hp 900tq without blowing the top off a piston. I will post pics when its done. Just a reminder it was a project car with that in mind. I did not take a pristine car and deface it. I hope to have all custom work including engine work and the original car for under 15k. I have spent around 7k to date. The body is "tastefully" altered a bit.

I have a Dinan TT now. It runs great.... after we put stronger head bolts all way around, new chain, upgraded turbos, different fuel management, free flow exhaust, new electric fan only, methanol injection and a good radar detector!
We are in process of building another 6sp car I bought cheap cheap. The turbos are mounted up where the lights used to be. Lights are now static mounted where the park/fog lights were. It looks hot and the goal is 700hp 900tq without blowing the top off a piston. I will post pics when its done. Just a reminder it was a project car with that in mind. I did not take a pristine car and deface it. I hope to have all custom work including engine work and the original car for under 15k. I have spent around 7k to date. The body is "tastefully" altered a bit.

that def calls for photographs:)

that def calls for photographs:)

super bump.

So STS Sales responded to my original e-mail stating:

To get you started, I can customize a Universal Kit for your specific application for as little as $2,999. If this sounds like what you have been looking for, please call me so that we can discuss the details.

If anyone has $2,999.00 to burn on customizing their kit for the 8-series, step up to the plate! :cool

So their Stage III Kit is already $2,999.00. Running 5psi or 7psi, you'd be approaching 450-500HP with a stock 850i. So it'll cost $6000.00 for the first person to develop a kit for the rest of the community ... + whatever is done for engine management...

Not bad. How about something for us M60 owners :D