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turbo build questions

bs009

bs009

New member
So I am going to be doing a turbo build here with an L36 from a 98 Camaro. The engine and transmission are getting swapped into another car and I'm going to be putting a turbocharger on it too. I'll be using a WC T5 manual with either a stage 3+ or 4 clutch. Obviously It'll be intercooled too. I'm sure the trans will hold up just fine for now.

The car it's going into is a ~3300-3500 lb RWD car. TBH I'm not completely sure what's a reasonable estimate, but I'm hoping for low 12's from this build. It won't be a purely track car, I want this car to be a lot of fun to drive in the twisties. So I'm looking for reasonable spool times while still being able to put the power down. I'm not really looking for big horsepower numbers, I'm more concerned about making the car fun to drive.

I'm not opposed to getting modded rockers for it, but would like to keep it simple for now. The motor will be otherwise stock with DIY exhaust manifolds/cold air intake etc. In a few years I'll probably end up going with a turbo cam, a bigger turbo, a T56 6 speed, and a 9" rear end; but I'm perfectly happy with these plans for now.

I'm looking at Holset turbos right now because they're cheap around here, and I've heard that they're extremely reliable.
-I'm trying to decide between the HY35, HX35, and HX40. The only difference between the HY35 and the HX35 is that the hx has a bigger exhaust side. Which one would be best for my application?

-Also, should I plan on running a 3" or 2.5" exhaust from the turbo back? I've read contradicting statements about this.

-And finally what sort of numbers should I be expecting from this build?

thanks.
 


go as big as you can for the turbo.. manual 3800s can handle it. I run the HE351 on all the manual 3800s ive built.

Get some bigger valve springs to start with if you want to start modding the motor... then work into a small cam.... E85 or lots of intercooling is your best bet for power on the cheap during building it.
 
nos4blood70 said:
Oh well hey there Ben. :P

Sounds like a badass build.
Click to expand...

Oh man. Busted lol

Thanks Carl. I can't wait to get started on this thing! With any luck I'll be able to get it done before June for the festivities. I may even end up de-modding the Regal to help fund this project if it comes to it.


I'll take a look at springs then. I suppose as long as I'm getting springs I might as well look into rockers too. Down the road I could always put them in another one of my 3800 cars too when I cam this one.
I'm planning on getting 60# injectors too in case I need to mix in some E85
 
bs009 said:
Oh man. Busted lol

Thanks Carl. I can't wait to get started on this thing! With any luck I'll be able to get it done before June for the festivities. I may even end up de-modding the Regal to help fund this project if it comes to it.


I'll take a look at springs then. I suppose as long as I'm getting springs I might as well look into rockers too. Down the road I could always put them in another one of my 3800 cars too when I cam this one.
I'm planning on getting 60# injectors too in case I need to mix in some E85
Click to expand...

Buy injectors once, get 80s+.

Buy springs once, get 150s and a timing chain.

The power you can make on 80s, e85 and 150 springs is probably over 550whp with a good enough turbo.
 
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