fotoboy

going with a straight 4 in with filter? Im wanting the low profile rad so I can maybe raise the cradle back up and alos heard there were gains to be made

dsmlights

some people see from .5-2 psi.

69ls6

2 psi and 50hp.I done it

fotoboy

wow, that might be my next mod! Gotta love free hp. Did you have to retune for that?

Did you guys use the Dewitts low profile rad? Anything else I need to know to do this? What fans are you running too? Like to keep the stockers but dont see that happening.

69ls6

yes retuned/stock rad.I cut my cradle and layed radiator down some and installed a 4'' inlet on supercharger.stock fans

c5mtl

I went from 724 to 775rwhp.....I have the older A&A version

fotoboy

laying my rad down would change too much with my ic and all its piping set up against it. Im looking into the aftermarket which will help with cooking too.

Milan

I have no dyno proof but my car did not pick up any power from this mod. The only gain I got is my boost curve shifted left by 400 rpm. So basically I started building boost 400 rpm sooner than I was before the mod.

86 vetter

no increase for me, I installed my headers at the same time and didn't notice an increase in boost on the dyno.

fotoboy

That's worth it too.

Milan

Agreed just not for the $$$

SmoothFRC

What $$? guess it depends on what you are starting out with. If you are looking at this mod and including the Rad in the $$, ok - maybe not... But if you are simply changing the inlet pipe, that is pretty cheap...

When I converted to a single intercooler, I lowered the stock radiator... I am still running the gen 1 procharger bracket, etc.

I am running a 3.85 pulley at the moment (been since day 1) - I have a 3.7 on my bench, but I have not put this on as I think it will result in belt slip. Knock on wood, I havent had issues with that with the 3.85 (I do have a riechard pulley, the 3.7 is not).

I am currently pushing ~570 and havent made any changes in a few years... was just looking for a little more, just to get me over 600 and been debating the following:

-Change out my 3.5" pipe to 4" for SC inlet
-Flip Intercooler around to shorten piping from SC to IC.

Not sure if I need to do both, or just do both to get it out of the way. I am hitting 10psi as is, I guess worst case, if I feel I am pushing too much, I could just put on a restrictor plate.

Thoughts?

John

95redz

I had the original style procharger inlet chocking off my F1A.

It went from 17.5psi to 20.8 psi (@6600 rpm) just by doing the dewitts rad/4" dongle. Car picked up so much extra power I needed IDS 1000 injectors and a retune.

We spun the ***** to 7k rpm and she made 21.4psi!

fotoboy

The procharger intake is crazy looking, not sure how they make any power. YOu combo sounds awesome, care to share your specs? WHat are you doing to spin to 21.4 psi wo slip?

tech2262

anybody got pics of there setup that dongle was a pita to put on

p1bz

Anybody know where to get a HUGE air filter? Bigger than a DP big mouth.

Sinister-one

What are you changing it to ??

Blitzkrieg

Read the OPs first post Ray, get with the program and pay attention!

He is going to a straight 4in and filter!

Sinister-one

You just wait Brian.......

fotoboy

It took 2 of us to get that damn thing on. Neither one of us thought it would work then bam good to go!


Im a little nervous right now because I used a the thin maf coupler.

I would like to see pics of what people have done though.