question for the 3s guys
 

looking into getting a stealth TT this weekend.

the guy is claiming 450 awhp.
i know theres a shit ton of variables but with these mods, do you guys believe 450 awhp is possible with this setup? im thinking more like 375-400 but thats just me.

1992 Dodge Stealth R/T Twin turbo AWD, Dynamic Racing stage II heads, 99 lifters, 6-speed Getrag from 99 vr4, Southbend Stage 4 DXD-B Clutch, TEC 15g's, Greddy blow off valve, Dejon Powerhouse Blow-Thru Intake Pipes, DSM sidemounts, Denso fuel pump, 550cc fuel injectors, Apexi SAFC, HKS VPC, Apexi AVCR, msd ignition dis-4, MSD 8.5mm wires, NGK coppers 1 stage colder, y-pipe, borla catback, ATR downpipe, highflow cat, Lowered, Nitto tires.

Re: question for the 3s guys
 

car will also be coming from 7300ish elevation down to 2200 or so

Re: question for the 3s guys
 

the elevation change will have an effect. coming down should make it run better due to more oxygen i believe.

Re: question for the 3s guys
 

Is that pump or race gas? what is he using for engine management?

Its doable on pump i wouldn't doubt it too much.

Re: question for the 3s guys
 

Those injectors seem kind of small.

I guess you will have to test drive it, should give you a good idea on how much power it is making.

Re: question for the 3s guys
 

not sure on engine management, and its on pump gas.

Re: question for the 3s guys
 

"550cc fuel injectors, Apexi SAFC" I doubt it's at 450 with no timing control.

Re: question for the 3s guys
 

heres what im trading him for it :

http://s32.photobucket.com/albums/d1...t=P1050657.flv

Re: question for the 3s guys
 

The engine management would be the SAFC.

Re: question for the 3s guys
 

We have 6 injectors. That's like 825's in a DSM.

Has a HKS VPC too. Old school, but works good.

As for making 450, it's debatable but not out of the question. The DR heads are a big help. Also if it was dyno'd at altitude with corrections, it will bump the #'s a little.

Re: question for the 3s guys
 

Yea I guess that makes sense, but you also have 6 cylinders. But I guess with two extra cylinders you don't need big injectors to make that kind of power.

Re: question for the 3s guys
 

I say keep the camaro.

Re: question for the 3s guys
 

the camaro gets about 8mpg, and its only a 3 speed. i need a car that can be a daily driver too.

Re: question for the 3s guys
 

I would believe at least 350 which is good however you look at it.

Re: question for the 3s guys
 

the camaro has a built 383 stroker with eagle rods, pistons, crank. all forged
.510 lift cam
9.8:1 compression ratio.
Dart iron heads
Holley HP series 750 Double pumper carb
MSD ignition, wires, and distributor.
K&n Filter
built th350 tranny. Overdrive has been removed.
3500 stall converter

Aluminum flywheel
B&M Megashifter ratchet style.
10 Bolt Rear end, brand new 4:10 gears
3:73 gears included.
Posi LSD
30 Spline Axles
Electric Fuel Pump
Edelbrock headers
3" exhaust, hollowed out cat. (very mean sounding)
Push Button start
200 Shot of nitrous
Aluminum Radiator with electric fans.
spohn racing torque loop
spohn racing subframe connectors
spohn racing adjustable torque arm

Re: question for the 3s guys
 

I know for that every 1000 feet in elevation you climb, you lose 3% of your engines output capacity, and vice versa for descending in elevation, so you gain 3% every 1000 feet. So you should get a good bump in power going down 5000 feet; roughly 12-15% or so gain. But I don't know how they compensate for a tune. I'm almost positive you will have to get it re-tuned when you bring it back to your elevation. Atmospheric pressure @ 7000 feet is 11 PSI and @ 2000 feet it's around 13.5 PSI or so, and that's a good difference.

Just out of curiosity, are you buying the car somewhere in Wyoming?

Any of the tuners here know what the deal is with getting a re-tune?

Re: question for the 3s guys
 

He will have to get it retuned for sure...

Re: question for the 3s guys
 

thats what i figured because my friend has a 400WHP evo in littleton, co (~4000 ft) and hed have to get a retune if he were to bring it up to laramie (7400 ft)

Re: question for the 3s guys
 

ok so if the car is running rich in laramie will it lean out a little bit more if he brings it down here?

Re: question for the 3s guys
 

what im saying is i think he got it in wisconsin and it was tuned. then took it to laramie without retuning therefore running rich the whole time. so maybe returning to a normal elevation will bring it back closer to that optimal range.

Re: question for the 3s guys
 

over a certain elevation with custom performance setups, it doesnt adjust automatically. a normal car (not modified or anything) adjusts proportionally to get the "optimum" 14.7 AFR at any elevation up to 8000 ft, which is where things get hairy for most OBDII systems regarding AFRs. if its running rich already on a tune or whatever you think he has done to it in laramie then it should lean out the lower and lower you go in elevation, since it was tuned at lower elev. it all depends on how the car may have adjusted itself to the elevation it's in now, if it did at all.

jw, who are you getting the stealth from? im in automotive at tech, maybe i know the guy here.

Re: question for the 3s guys
 

his name is michael shaw. he works at the gm dealer.

Re: question for the 3s guys
 

It depends on the system, an AFC and factory ECU might not compensate as well a standalone. A standalone is usually tuned based on manifold pressure. There isn't any less percent of oxygen in the air at high altitude than there is here, but the atmospheric pressure is lower. NA cars at high altitude can lose a lot of power versus sea level, because they won't get anywhere near 0psi. Here an NA car might see -2in/hg to 0psi at full throttle. While at Denver altitude they might only see -7 to -5 in/hg of vaccum.

A turbo car on the other hand isn't nearly as effected because it you have 18psi of boost in your manifold here or there, then you have 18psi in your manifold. At high altitude it will be laggier because when you floor it you start at minus -6in/hg or whatever versus at sea level where you start at 0psi as soon as you got WOT. A smaller turbo might also lose some power if the amount it needs to overcome starts putting it into a range that it isn't efficient though. On a 61mm turbo the difference between it having to put out 18psi versus 22psi isn't a big deal, but it can be for some tiny pea shooters like you run on a 3s or stock Subaru.

Re: question for the 3s guys
 

No it doesn't make 450awhp by local dyno dynamic standards, not even close.

Still, seems like a solid setup.

Re: question for the 3s guys
 

375 would bring a smile to my face.

Re: question for the 3s guys
 

if its that silver looking one I like it.... and you can always have shane spend an hour making her rip!

Re: question for the 3s guys
 

yeah thats the one.