What type of intake manifold for 4cyl turbo with no intercooler

[afterburner]

I'm planning on using a 2.0 16V turboed (Garrett T3 Sierra Cosworth turbo) engine with stock compression, running on LPG + Water Injection and no intercooler in my B4. I want fast response car with not that much power for some winter fun. No intercooler means super short intake piping. And here comes the question what intake manifold to use.

I was thinking about using a S2 modified/shortened manifold that positions the throttle behind the head but that means the air will go through 4 90 degrees turns before entering the engine.

The other idea I had was to manufacture a custom manifold with a plenum on the intake side positioned slightly above the head with the throttle body almost directly pointing to the turbo's compressor exit, but clearance issues exist because of the limited space between the head and bonnet. This version of the manifold consists of one ~180 degrees turn for the air out of the compressor on entering the plenum and then the head.

Any other ideas? Thanks!

[Sleeper_Avant]

Escort cosworth never has a T3 matey

sapphire 2wd/4wd was T3 .48 ex housing with different actuator brackets for 2/4wd applications
escort cosworth Webber Marelli ECU T34 with .48 .55 .63 housings available
escort cosworth EEC IV ECU T25/T28 hybrid

i would not run without an intercooler as air temps are just too high regardless of boost

what about running a modified AAN manifold and cheap Ebay intercooler? this is what i was thinking about with my 16v B4 or the Cosworth intercooler as they are good size, you will not notice boost lag from this cooler with the setup i suggested and will be better than the S2 pipework setup and no cooler, genuinley ACT`s will be 90+degrees c with no cooler at very low, 3-4psi boost!!


The KE-Jetronic responds well to turbocharging and will easy do 250/300bhp with a few pressure tweeks!

[afterburner]

Oooops! Meant to say Sierra, not Escort It's a T3 with a .48 housing. Gonna be using it with a S2 wastegate. About the intake temps - that's where the Water/Meth injection comes! Lower intake temps + knock suppression. Gonna install an Aquamist pump with a fast acting valve mapped by the ECU (MegaSquirt).

[GazzaG60]

with a 16vt the 2 most important bits i feel are management and manifolds.

manifolds are not that easy to obtain now.

id avoid doing a kjet turbo motor.

gofor an efi setup. use the base of a 16v manifold. replace the injector seats with 8v g60 or NA inserts for efi injectors. they call them injector cups.

exhaust wise look for an exhaust manifold in the states. they were often made to suit LHD cars if the engine is horizontal.

id nwver use the shortended manifolds.

turob id go with a t04e type size unit. a decent intercooler and 440 or 500cc injectors. depending on the fuel rail and fpr id use either rthe 4 bar reg or a porsche 944 turbo unit.

fit a good pump. 255 walbro or bosch 044.

head flow wise concentrate on the exhaust if anything.

i used wiseco 83mm pistons in a 6a block with scat rods.

on a 2wd car id not recommend a small turbo and bb. use a good old fashioned unit fior better traction.

[afterburner]

You don't read I'll be going for LPG as fuel, only fuel, no gas. Don't want an intercooler. The turbo manifold I have is a SPA cast manifold, which is very nice, because it has no sharp turns. I was just asking for the intake manifold - what to use for it. S2 one + a lot of 90 degree turns or one with a top mounted TB pointing directly to the turbo.

[ChrisAudi80]

You could let the boost pipe go in front of the engine. There is little space between the valve cover and the hood. Do you know how much? If there is 6 or 7 cm, it is possible.

If you are going to use W/M for cooling, get a spacer plate for behind the TB.
Like this: http://www.usrallyteam.com/index.php...cPath=1_68_261

If you can, make an intake manifold yourself.
Check this out:

http://forums.vwvortex.com/showthread.php?5531860-NUBWORKS-ABA-LRI-Intermanicooler-AWIC-build