Question on NA Stroker

[lgvenable]

I've got a 92 base in perfect condition which just passed 70K miles. I'm at a point where I'm ready to upgrade, and was wondering what is available for NA upgrades by doing an NA stroker. Has anyone done a 3.5 or 4.2 stroker from Pampena Motorsports; and what HP was achieved, or am I better off doing a TT upgrade?

If the best rout is the TT-SL; I'm assuming I'll need to upgrade my FWD tranny, or are there twin disk parts to upgrade the tranny with.

Hey and don't flame me, I'm over from 3SI, where for several years I didn't know the forum split due to intermittent activity; but have been around these forums since 2002.

Is there anyone I can work with in the Morristown TN area who has done a TT-SL conversion?

[R/T93]

Several people have dropped 6g74 3.5 motors into their FWD. Its not much a hp gain, not as much as bolting the stock twin turbo stuff onto the stock 3.0.

As for the transmission, the stock FWD will handle the power, for a time... the differential is the weak point, it WILL fail if you drive the car hard. You can upgrade the differential for 1200 dollars for a Quaife LSD but you are just going to break the next weakest part, most likely 2nd gear.

The smart (most reliable) thing to do is the TT swap on the 10:1 motor, add all the turbo parts (radiator, oil cooler included) that consists of the swap and add either a 5 or 6 speed Getrag trans from a turbo car. There are plenty of reviews and how to's regarding a project like this but dont take it too seriously. The simpler the better. The car wont be worth much of anything no matter how much stuff you do to it but it could be a rewarding, reliable, fun, quick, daily driver of a car.

[lgvenable]

I'm looking to make this a reliable daily driver thats a lot of fun, without breaking the bank. So basically it sounds like a TT-SL conversion; with a Gertag tranny upgrade/rebuild. Can I use the AWD differential/transfer case, but just drive the front axles which I'd assume would need to be beefier?

Are there members with shops in the general Tennessee/Kentucky/Arkansas area you know about where I could get the work done?

[R/T93]

I have no clue what shops are in that area.

There is some internal modifications to do regarding making the AWD trans FWD only. It is also possible to make your car AWD but its a lot more work but completely do-able. Many have done that too.

Drive axles are the same for TT and n/a cars, however, the wheel bearing hub spline count is different on 91/92 cars from the 93+ cars. If you keep your stock brakes you will be able to keep the stock axles.

[3000gttom]

there has never been an all out n/a build on this platform so there is no way to tell you how much power you will make, i haven't even seen an n/a stroker build

what can be said is that ive seen up to 230 ft-lb put down with the stock bottom end and naturally you will get more from having a longer stroke, and with being able to rev to over 8000rpm you may see horsepower get pretty high if everything is built and tuned correctly, and you may want to talk to nelson because he is revving to like 12000 rpm, with that kind of rpm you could make over 500whp n/a

if you tt you will get a ton of horsepower but also a ton of torque with it that likes to destroy tranny's and with fwd will have lot more traction problems than an n/a

the tt conversion is well documented and there is less planning, but dont believe when people tell you that it is under 1k to convert, because i haven't found a way to do it for under 2k without taking a lot of shortcuts, this basically means really if you want turbo's to buy a second vr4 and that way you can use the power you have instead of just spinning tire

if you do an n/a build you are pretty much in uncharted territory with not really anyone to go to for help, gtwiz is smart but his build is on hold and i'm not starting my build for a while since ill be working with penn state sae team building a high revving n/a yamaha r6 motor

long story short, dont do an n/a build unless your an engineer who is good with fluid dynamics and and understands the harmonics of an n/a motor, and if you want turbo get a vr4 so you can actually use the horsepower you make

[IPD]

there is no way in hades even a 4.0L stroker n/a is going to make 500whp unless you're pouring nitromethane into it--and even then i'm not sure.

i believe suthnr has a built n/a, but it's probably not any faster than a fwd-tt on wastegate boost.

save yourself the heartache and either buy a vr4 or tt-convert your car. fwd-tt can be a lot of fun, but past 300fwhp is fairly pointless. if you just want to fire & forget (i.e. the mod bug doesn't bite) then maybe fwd-tt is your thing. if you have an ever increasing need for speed (like most of us) you'd be better off making the jump to AWD now--it will cost you way less in the long run.

you can do a tt-conversion for ~1k if you do ALL of the work yourself, and you shop around. Used parts, of course...but if you insisted on buying new, you wouldn't be buying 9b's anyways. Headers, turbos, ic & piping, plenum, intake, injectors, fuel pump--you can probably find a package deal from someone parting out or upgrading. You can get an ebay downpipe for < $150 shipped, and a used one probably way less--you can hook it to virtually any catback you want (i had my fwd-tt hooked to a 2.5" n/a single-shot exhaust for quite some time). SAFC 2 for ~200-300, and a basic MBC for <$40.

You'll most likely spend a lot more in getting a 5 or 6 speed & converting it to FWD than you will on the tt-conversion. Fwd mtx's are made of balsa-wood and glass (ask stealthee).

As far as shops? Barefoot Racing was in Atlanta, but I haven't really heard anything from those guys in a few.

[green-lantern]

I've got a 92 base in perfect condition which just passed 70K miles. I'm at a point where I'm ready to upgrade, and was wondering what is available for NA upgrades by doing an NA stroker. Has anyone done a 3.5 or 4.2 stroker from Pampena Motorsports; and what HP was achieved, or am I better off doing a TT upgrade?

If the best rout is the TT-SL; I'm assuming I'll need to upgrade my FWD tranny, or are there twin disk parts to upgrade the tranny with.

Hey and don't flame me, I'm over from 3SI, where for several years I didn't know the forum split due to intermittent activity; but have been around these forums since 2002.

Is there anyone I can work with in the Morristown TN area who has done a TT-SL conversion?

I live near Oak Ridge and I've done the conversion (TT). Also Coop (DCIV) lives in Morristown. He pretty much only posts on the other board though.

[Chris@Rvengeperformance]

I have no clue what shops are in that area.

There is some internal modifications to do regarding making the AWD trans FWD only. It is also possible to make your car AWD but its a lot more work but completely do-able. Many have done that too.

Drive axles are the same for TT and n/a cars, however, the wheel bearing hub spline count is different on 91/92 cars from the 93+ cars. If you keep your stock brakes you will be able to keep the stock axles.

the hub spline count is the same. The difference is in the transmission side.

[R/T93]

the hub spline count is the same. The difference is in the transmission side.

Are you sure? Guys doing the brake conversion need to get new axles if they are older or newer brakes (compared to th their current setup).

Edit: I could be wrong, I can't research quickly I'm out and about.

[Chris@Rvengeperformance]

Are you sure? Guys doing the brake conversion need to get new axles if they are older or newer brakes (compared to th their current setup).

Edit: I could be wrong, I can't research quickly I'm out and about.

yeah I had a 1995 NA and ran the smaller and larger style axles with a 1992 trans and then a 1995 trans. never changed the hubs