turbo chargers

[mb911]

If you could what would be everybodies choice for a low boost turbo charger brand and model for fittment on cis cars along with motronic cars? Looking for a majority rules type thing? Thanks

[RickM]

For a 3.0l engine I'd go with a Garrett T-04. However there are many variations in configuration.

You may also be able to get away with a hybrid t03/t04.

[MotoSook]

Originally posted by mb911
If you could what would be everybodies choice for a low boost turbo charger brand and model for fittment on cis cars along with motronic cars? Looking for a majority rules type thing? Thanks

Trying to join the game huh?

[David]

Are you looking to make an exhaust that fits most applications or are you looking to build a turbo kit?

I'd say the K27 turbo is most common, but's it's also the most expensive. If you're going to build a turbo kit, you could sell it at a lower cost with a Garrett.

A Garrett could be choosen to fit a low boost application since you can actually get compressor maps for them.

[mb911]

Well not really sure. I have 3 to do One for my car one for one of my very close friends that has a 84 carrera and one for another very close friend that has a 79 sc. I am also doing a 70s MB As to weather or not its a game I am not sure there really is..

[YermanCars]

Garrett gt42r, very wise choice.

But you may have to build the internals

[afterburn 549]

might come dwn to $$$- as the hybrids are becoming infinitely self adj. and no oil lines (that's a plus).

[mb911]

Originally posted by 125shifter
Are you looking to make an exhaust that fits most applications or are you looking to build a turbo kit?

I'd say the K27 turbo is most common, but's it's also the most expensive. If you're going to build a turbo kit, you could sell it at a lower cost with a Garrett.

A Garrett could be choosen to fit a low boost application since you can actually get compressor maps for them.

Maybe a kit But I think there is a bunch of guys out there thinking of doing one so I may just do the 3-4 I talked about and see what happens from there. You know me can't keep away from exhaust tubing

[mb911]

[QUOTE]Originally posted by cgarr
[B]

Originally posted by YermanCars
Garrett gt42r, very wise choice.

Very wise!!

Craig Garrett

Whos a good source ?

[YermanCars]

No offense to you, But I was being sarcastic,

The gt42r is a very wise choice but not for your application, unless you plan to make 700-800 rwhp

If you do not know the difference, between turbo's and don't even have a clue for a source

I would not dive into this, as it cost time and money, even if you fabricate, all the piping and you have a bolt on kit, there is still fuel and tuning to be done, unless you have a chip for the motronic cars and cis I am not familiar with. as I have not tinkered w/ cis cars

Also then, there are hidden secrets and problems, when you have the kit.

Start with one, test and tune it.

When it is running well then you can make more.

Just my .02

[mb911]

Really just gathering information at this point As I said I may do a kit. Let me let in on the goal. I want to be able to make all the tubing/fittings/muffler for a specific turbo so that end users can do what they want from that point. So If I can get a good suggestion I will concentrate my research on that. Not to sound condesending But I have had my fair share of variable turbo chargers in boxer aircraft engines so this is not anything new not that we are talking variable turbos either. But to learn you have to play stupid as possible so you are open minded to whats going on around you. I am not the type to get a big head about things And want to see whats out there see what others have done who there sources are etc. the first examples will be done on my EFI car and My friends CIS SC . I thank you for all your suggestions and all aspects I have thought of as well. it definatly can't be taken lightly. I must say I am thinking very basic stuff much like the BAE kits. Nothing special just lowboost and simple bolt on hardware with the enduser providing there specific equipment. Who knows I may do a couple and nothing but I would like to be part of the reserection of the add on turbos

[MotoSook]

Originally posted by mb911
But I have had my fair share of variable turbo chargers in boxer aircraft engines so this is not anything new not that we are talking variable turbos either.

An entirely different beast than a streetable 911. You better hope your potential clients know more than you do about turbos (and CIS and DME) before they start bolting your pipe to their engine.

[mb911]

Originally posted by Souk
An entirely different beast than a streetable 911. You better hope you potential clients know more than you do about turbos (and CIS and DME) before they start bolting your pipe to their engine.

thats what I would expect you to say. If you reread that I admit that it is different however we are not doing anything for the general public I know That I am not up to your "statis" but hey man give a guy a break for looking at new things that nobody else is doing effectivly. I Kind of thought we were past the sharp jab in the eye with a stick point souk?

[SLO-BOB]

Originally posted by Souk
An entirely different beast than a streetable 911. You better hope your potential clients know more than you do about turbos (and CIS and DME) before they start bolting your pipe to their engine.

Souk-I'm surprised by the aggresive nature of your posts. I've had nothing but positive experiences with you and Mike. Maybe a little "friendly" competition with Ben? I know you were in the "developement" stages of a turbo kit. Anything yet? How about your car? Do you have a turbo charger on that? If you have some input, based on actual turbo experience, I would sincerely love to hear it. Hell-if you have a kit-I'de love to buy it! In the meantime, I'm all for Ben exporing the possibilities of this and I'll be happy to donate my car as the guinea pig.

For the rest of you-I have approached Ben about making a muffler and maybe a cross-over pipe for my bae kit. In our discussions, we have concluded that it would be fairly easy to make a complete system based on the bae principle and design-low boost, basic componants=cheap horsepower. Right now, my only interest is cis cars because-A. That's what I have, B. It's a simple system that will compensate for low boost applications, C. There are many others out there who want the same thing.

If I have learned one thing in life it's to not listen to those who say it can't be done, that it's not worth it, or it's best left to experts. Well, that seems to be the prevailing attitude and guess what? No bolt on turbo kits for cis cars. This one puzzles me especially because the people I have communicated with that actually have turbo sytems all seem to agree that it's not rocket science.

So Ben-keep swinging! I'm with you all the way. I would love to see a product available for us gearheads and I'll help in any way I can.

Souk-you too! If you have some ideas on this, I'm all ears.

My turbo vote=T04E. This information from Tsuter who's opinion I respect because he actually has a 3.0 cis car with the T04 on it. Can't beat real world experience!

[MotoSook]

Maybe my comment was a bit aggressive Bob (folks know me as a plain hard facts kinda guy), but it is a fair warning to folks. A little friendly competition? Not when I have shared some thoughts with folks I didn't think I would be competiting with.

Sure it's not rocket science, but unless someone is going to copy a formula that already exists there should be some research performed.

Yes, I have something, but I've learned to keep my work under wraps until I'm ready. Too many times I've been burned for being too honest with folks.

[Tim Hancock]

Ben, I am thinking of doing the same with my SC. You and I know that a low boost system (like the old NLA BAE kits) will work on the lower compression SC's without issue (it is allready proven). It is just a matter of picking a readily available turbo that matches whatever came with the BAE kits.

Building the tubes and mounting hardware etc, (which is difficult for most home garage mechanics) is the easy fun part for me and even easier for you with your background. Hopefully someone will chime in here with a helpful response on modern, readily available and relatively inexpensive turbo components for a low boost CIS based system.

I while searching the archives recently, read where someone suggested a T04 54 trim (# may be incomplete?) as a good canidate, but I can't remember what link it was buried in.

Someone just needs to tell me that I can't successfully do this, that should push me over the edge to get the job done !
(should have seen the look on the violin shop owners face when I walked in holding my scratch built violin 6 mnths after she told me I could not build a violin even though I assured her that I thought scratch building a wood airplane was probably more challenging )





Ben, you will have to take the naysayers for a ride in your turbo'd beast after the fact, the satisfaction will be priceless!

[sammyg2]

A garrett T-04 is a good choice as long and the AR is not too agresssive.
You will want it to kick in early and don't need it to build high boost levels especially at high rpms, that's not what you need.
There are plenty of compressor maps out there for the garretts, spend some time becoming familiar with the curves or ask, we'll help. Try and get one that is efficient at lower flows and rpms, forget about the big HP turbos. Too much lag and not efficient in this application.

BTW, if you decide to build a nice muffler for an SC with the BAE kit and rajay turbo, put me down for one. No tire kicking, just tell me how much and where to send the check. I have thought about doing a muffler myself but after seeing and reading about your mufflers I see no reason not to get one from you (as long as it isn't too noisy, loud street cars suck ). I hate the muffler that came with my kit. Too heavy and too restrictive.

[SLO-BOB]

Sammy-that's where I'm at too! I need a muff that works well with my BAE system. I also wouldn't mind a stainless cross-over pipe as well as some better boots. You are one of the esteemed expert turbo cogniscenti I refer to btw.

Souk-You and I are good. Like I said-nothing but good relations and I appreciate your past help! I'll stay out of whatever's going on with you and Ben. I just hope that your individual efforts aren't hampered by this problem. There is definitely a market for a bolt on system. As a reminder, the system I've discussed with Ben would be based on the proven BAE design. I hesitate to say clone or copy for obvios reasons. Again-my involvement is purely as a hobbyist-not business-at all.

Tim-You're an inspiration-beautiful work!

[MotoSook]

No worries Bob.

I'm going to bow out of this thread....happy boosting!

[YermanCars]

Ben, you will have to take the naysayers for a ride in your turbo'd beast after the fact, the satisfaction will be priceless!

Hey, Nobody is saying, that It can't be done.

Read My Sig

under 300rwhp is not a beast ( which is what you guys will achive, you may get 260hp at the wheels max, w/o an intercooler

Mine had 380rwhp and it felt slow.