Question for the turbo gurus out there

[4seasons69]

What about a billet 6766?

That is something that has crossed my mind.


It's sounds like you want to keep cost to a minimum. So I'd say if everything is already setup to mate up perfectly to a GT42, then just stick with that platform for now for simplicity sake so it's just a bolt up affair without having to tweak piping and what-not. Little tweaks here and there can add up cost wise.

Without knowing what your current turbo is, or what exactly is wrong with it (you mentioned buying a center section, then mention a chipped wheel, what all is wrong with it?), it's hard to say what's the best path to go as far as repairing or buying new.

What is your current turbo and what is broken on it?

GT4202 is pretty old school technology.

Sorry I thought I mentioned what turbo I have. I have a gt4294 currently that the turbine wheel is chipped up from metal going through my exhaust from when the engine failed.

I do want to keep things as simple and cost effective as possible but want to do things right too. My intake is just a straight tube of metal pretty simple to fab up and the exhaust is basically just a dump pipe that goes down by the oil pan also shouldn't cost too much to have something similar made.

So if switching to something like a billet 6766 would net me more power in the long run I would be willing to have an intake and exhaust made.

Also I was thinking if I don't get a new center section I would go to a billet version of the 4294 or maybe the billet 4202 but I don't want to spend 3k on just a turbo. So if I can switch the setup and make as much or more power and still save a little money I'd like to lol

Don't expect big gains going from one large turbo to another large turbo in roughly the same size range unless the old turbo was maxed out and dropping boost/airflow a lot or you crank up the boost, which will probably take better gas. Especially if you retain the same size exhaust wheel and exhaust housing.

Ok that's good to know. I honestly have no idea if the turbo was maxed out or even close to it. As for cranking up the boost the wastegate setup with the 4294 runs about about 37 psi no matter what so idk how much higher we can push it. As for better fuel I'd like to stick to E85 for now but I can get a decent price on e98 though my work so if I have to I

[Halon]

If you're willing to think outside the Garrett/PTE box, people are selling off the shelf BW 66mm's for pretty cheap as well. "$728.18 paypalled or on card" is what one place is advertising. Pretty decent turbo for the price.

[4seasons69]

If you're willing to think outside the Garrett/PTE box, people are selling off the shelf BW 66mm's for pretty cheap as well. "$728.18 paypalled or on card" is what one place is advertising. Pretty decent turbo for the price.

I'm open to anything that will put me at least right back to where I was power wise or preferably more. I'll check them out

[Halon]

Here's some reading info on the turbo. A lot of turbo for under $800.
http://www.full-race.com/store/turbos/borgwarner-airwerks/borgwarner-s300sx-91-79-turbo.html

[Shane@DBPerformance]

Keep in mind that a GT4294 can do 850whp, so if you goto a smaller billet turbo that can do 800-850whp, then you really aren't going to gain more power unless you improve other parts on the car or run better gas and turn up the boost.

Did Swifty ever put a good intercooler on that car? I remember the one that was on it when he had the car was not very efficient. I would switch the car to DSMLink too.

[4seasons69]

Here's some reading info on the turbo. A lot of turbo for under $800.
http://www.full-race.com/store/turbos/borgwarner-airwerks/borgwarner-s300sx-91-79-turbo.html

Thanks!

Keep in mind that a GT4294 can do 850whp, so if you goto a smaller billet turbo that can do 800-850whp, then you really aren't going to gain more power unless you improve other parts on the car or run better gas and turn up the boost.

Did Swifty ever put a good intercooler on that car? I remember the one that was on it when he had the car was not very efficient. I would switch the car to DSMLink too.

Ok that's good to know that the 4294 is capable of that much. And yes he did put a better intercooler in it and went from 1650cc injectors to 2150s. I'll double check if he changed anything else. I also had the head ported and polished. I think that's it for upgrades though. I'll keep link in mind and look into what I need to do to switch

[4seasons69]

Double post

[turbotalon1g]

I know someone getting rid of a 74mm BW ETT turbo if you are interested, local DSM guy.

Let me know. Made over 650 at RS at about 34psi IIRC, lot of room left there and that's thru an auto.

[4seasons69]

Ok ill let you know. I have to get the engine assembled and back in the car first and still need some parts for that so I'm not quite looking for a turbo yet but I want to figure out for sure what I'm going to do when it's time

[turbotalon1g]

It's not getting pushed for sale yet, but BW stuff is durable as hell IMO.