Wilder

I have access to a polished and ported VRAM from a 3.8 RSR. Will it plug and play into my 98 3.6 or will modifications be required?

The only thing I can think of is that increasing air intake flow might require adjustments to the fuel system. If so, would an adjustable fuel pressure regulator or higher capacity fuel injectors do the trick?

chris walrod

Remember the additional air 'in', must have a way 'out' .. and sadly, the ceramic coated exhaust ports kinda limits us on meaningful mods.

Bill Verburg

RSR did not use vram

If it's the intake from an RS, you can get it to work w/ some rewiring of the DME connections. It's not plug and play even if you have a 55pin OBD1 DME as used on the RS's. Which you don't have on a '96 up US car(OBD2, 88pin connectors)

The exhaust is not a bottleneck on these cars, just use a good cat bybass(sepatated sides)

You wouldn't get the full benefit w/o cam, valve and chip changes to accompany the intake

Monique

What Bill said...
RS's are OBDI vs OBDII for NA pollution standards... it may be a challenge to get by emission. Good luck

Wilder

Thanks for the responses guys.

In the even that I choose to pursue this:

What kind of power improvements could I expect?
If changes are made to the DME as suggested, will emissions still be a problem to contend with?

I have a Rennsport chip and DACH X bypass, so I'm partially there in terms of being able to use the larger air flow. I thought about doing RS cams but by the time it all adds up, I may as well do a 3.8 converstion and that's just too much money for the return.

Marlon

more power? ...maybe a TT. Pardon my noob-ness, did the 993 TT come in 4wd?

Wilder

All TTs are AWD. A TT was my original plan but I now belong to the small camp that prefers NA. I'm just trying to squeeze all the power I can get without having to spend $15k for 30-40HP.

jimbo3

All 993TT's are 4WD

FisterD

All 993TT's began life as AWD....but some are now converted to 2WD. I believe ViperBob sells a kit to convert from 4 to 2.

Greg Fishman

There are few ways to get 30 to 40 hp out of any street 993 engine, none that I know of are cheap. A streetable 3.8 is barely going to break the 300hp barrier without some tricks. Good luck with your pursuit of hp, I am sure you will figure something out.

Wilder

Hey Greg, long time...

I hear you man, but you can't blame a 993 brother for trying to be creative. Coming upon a 3.8 polished and ported VRam doesn't happen every day and I'd really like to know if I can gainfully use it.

David Ray

Get the rest of the package if you're willing to spend this much time, energy and $$. The RS 3.8 is a dream come true. Hurry though, it will be winter up there before you know it.

Red9

What do you mean the RSR did not use vario? I am 100% that they did-presuming we are talking 993 RSR.

clubsport1

RS had varioram, RSR were only built as race cars and had a completely different intake system.

ROKN, Have you considered tuning the 3.6, it doesn't take much to get up to RS 3.8 levels and if you go for 9M heads you could go well above factory 3.8 output..3.8 is ok, good torque, but feels quite a lazy engine in operation (owned a couple, driven a few others).

Wilder

By tuning do you mean chipping it and live mapping it? Hard to find someone to do that on this side of the pond. My car already has a Rennsport chip, cat bypass, LWF/clutch and a nice little box . I agree that live mapping would be a great way to squeeze all the power out and if someone can tell me where I can get it done, I'll be there. In the meantime, the best I can hope for is to have my chip reflashed (see other post) to make the best use of what I've got.

3.8 and 9M (if it were available on this side) is too much $$$ for the power gain IMO, but then again, a test drive might change that perspective.