200 HP Goal, Is it possible?

[CDNTurboZ]

I was wondering if 200hp at the wheels is possible with this setup:

86 shelby charger
rebuilt 86 short block with TII rods
86 swirl head with slider cam
rebuilt 87 garret TII turbo
a525
mpgmike ported exhaust manifold
TU 3inch swing valve, dp, and exhaust (3 inch magnaflow muffler and cat)
GLHS stage TII LM
whatever max boost it allows (14psi correct?)
two piece intake
TII/TIII clutch
89 daytona rad/intercooler setup

[Orangetona]

I would think thats 200HP right there. I would swap the slider cam for a roller, that should 'slick' up some things for you.

[Whorse]

14psi with a ported head definitely sounds like a good 200hp setup for crank power. Might take a bit more tuning to make that wheel power, but that big exhaust will help sap out a nice gain over a stock system with that setup.

[overlordsshadow]

I would say you'd get that or more. Have fun with it when your done.

[Directconnection]

Most likely not on 14 psi boost, unless you can squeeze just a couple more psi. I didn't notice anywhere that you said you had a ported head.

[tryingbe]

I would use a g-valve to set it at 14psi instead the LM.

[Orangetona]

Most likely not on 14 psi boost, unless you can squeeze just a couple more psi. I didn't notice anywhere that you said you had a ported head.

Steve, on what hes done with the full 3 inch exhaust and ported exhaust manifold on a stock turbo I dont think a ported head will matter too much on 14 psi. Thats why I said go with the roller cam, itll help reduce the friction and that should get him to his goal.

[GLHSKEN]

Most likely not on 14 psi boost, unless you can squeeze just a couple more psi. I didn't notice anywhere that you said you had a ported head.

Easily done I made 260 at the wheels that way running 18 psi safely with +20's at stock fuel pressure.

On 14 psi you will get your 200whp. The cars "wake-up" at 16 psi. It becomes a whole new animal.

I would NOT lose the turbo slider cam. You will not los anything. It actually is the best "stock" cam I've run.

[Directconnection]

Yes, you made those #s.... but how many other cars have we witnessed on 14 psi stuck in the 15s?

[Directconnection]

Steve, on what hes done with the full 3 inch exhaust and ported exhaust manifold on a stock turbo I dont think a ported head will matter too much on 14 psi. Thats why I said go with the roller cam, itll help reduce the friction and that should get him to his goal.


No... I was pointing out that he was not sing a ported head that someone else thought he was.

If I were a betting man, I'd say 190 whp on a stock T-II on 14psi. Donovan ran 23psi boost to net 250 whp with a 3" exhaust and cal.

[GLHSKEN]

Yes, you made those #s.... but how many other cars have we witnessed on 14 psi stuck in the 15s?


Many, but a SC is a 2600lb car. basically he has a GLHS set-up. With stock echaust you will run 14's that way. His car is modded almost exactly the way mine was. Minimal mods. mostly exhaust.

I understand your point. But 200 whp is not hard. I saw a bone stock glhs lay down 200WHP at 14 psi with only exhaust on the dyno at 14psi

[iTurbo]

I have two cars that made very close to 200 WHP with 14 psi. First was my Omni GLH Turbo with 198 WHP/270 WTQ. Second was my Shelby Lancer with 196 WHP/242 WTQ. Omni had a very high mile 2.5L TII with 3" exhaust and large NPR intercooler. Shelby Lancer was 2.2L TII with 3" exhaust.

[GLHSKEN]

And a 2.5L does not make the WHP a 2.2L does

[Clay]

I understand your point. But 200 whp is not hard. I saw a bone stock glhs lay down 200WHP at 14 psi with only exhaust on the dyno at 14psi

:thumb: Yup! That would probalby be my 87 GLHS #208. 2.5" exhaust and GLHS stage II LM were the only mods.

[ShelbyZD]

Easily done I made 260 at the wheels that way running 18 psi safely with +20's at stock fuel pressure.

On 14 psi you will get your 200whp. The cars "wake-up" at 16 psi. It becomes a whole new animal.

I would NOT lose the turbo slider cam. You will not los anything. It actually is the best "stock" cam I've run.

At 14psi my bro's SC made enough 'wake up' power to beat 260hp mustangs and burn through 3rd gear. :D

[CDNTurboZ]

thanks for the input guys, as long as I get close to 200whp I'll be happy, I was thinking of buying a cobalt SS supercharged the other day, and put the charger away for a while, but for maybe $2000 I'll have a faster car than the cobalt :)

[slasky]

I see a transmission swap in your future.

[CDNTurboZ]

I see a transmission swap in your future.

Not when a used a555 costs $500 around here.....

[boost geek]

Many, but a SC is a 2600lb car.

I have an 87 S.C., weighed it at the track last year, 2610 lb with me in it and a 1/2 tank of fuel, I weigh 155. My car is an a.c. delete car though...
My setup 2 years ago was similar to yours, but I had a G head. I would unplug the w.g. canister hose, and shim the canister to 17 psi with T2 injectors and stock f.p. Traction was a joke, 15.1@ 99 mph. That was with the MP stage 2 cal.

[boost geek]

Not when a used a555 costs $500 around here.....

$500? Pick a Part has trannys on again for $79.95. Engines for $175.

[CDNTurboZ]

$500? Pick a Part has trannys on again for $79.95. Engines for $175.

out here its a bit more expensive........

[CDNTurboZ]

[QUOTE=GLHSKEN;161482]Easily done I made 260 at the wheels that way running 18 psi safely with +20's at stock fuel pressure.

On 14 psi you will get your 200whp. The cars "wake-up" at 16 psi. It becomes a whole new animal.
QUOTE]

so to run say 16 psi, I would just need the +20's?

[BadAssPerformance]

Yeah, +20% (42#/hr) and if it is an '87, a Stage II cal helps too, no boost cutout till 18psi :thumb:

[Orangetona]

Easily done I made 260 at the wheels that way running 18 psi safely with +20's at stock fuel pressure.

On 14 psi you will get your 200whp. The cars "wake-up" at 16 psi. It becomes a whole new animal.

I would NOT lose the turbo slider cam. You will not los anything. It actually is the best "stock" cam I've run.

Really? We hated ours in our lebaron. I dont know about performance from it but it just ran slightly worse than the roller cam.

[Directconnection]

Really? We hated ours in our lebaron. I dont know about performance from it but it just ran slightly worse than the roller cam.

I can't remember the specifics, but the sliders came with a more agressive profile.

For the record... 200 whp (or real close to 200whp) is attainable at 14psi on a T-II. The reason I mentioned that it would take robably 16 psi to pull it off was primarily based on the majority of people I have seen run 16+ psi and never make that. I know someone who converted their car to T-II and professionally done. It was a 2.5, but also had a cal with +20s to boot. It made only 167whp after doing everything right (except the state of tune). I've seen S60 turbo equipped 2.2's with a cal and 3" TU swingvalve and 3" exhaust make only 240whp on 18psi.

For those that can get the tune right... 200whp is attainable. Seems a large majority of others fall short.

[87glhs232]

With those mods your going to want more clutch. I had one in my glhs with fewer mods than that and could get it to slip bad enough to have to lift to get it to hook up again. Don't get me wrong, it's a good clutch, but you've got more power than it can handle. I switched to a TU kevlar this last weekend and it kicks butt.

[boost geek]

I'm running a T2 clutch, still holding up. I dont think it would survive a pass with slicks though. Car is getting wild, for me anyways.:p I'm getting torque steer again now, car lights the tires in second at about 50 or 60 kph, almost catches me by surprise sometimes. 200 hp should be no problem. I was stuck in the 15s in my other S.C. only because I had no traction, OBX helps, but still spins like crazy in the first couple gears. I have the same computer as you, but I dont have the w.g. canister vacuum line hooked up, hitting 19-20 psi with +40s at 28 pfp and alky with 87 octane now, driving it every day to work. Freeway onramps are great, gets a little squirly in 3rd.:thumb:
Your car will fly at 16-17 psi...

[93sundance]

Yes, you made those #s.... but how many other cars have we witnessed on 14 psi stuck in the 15s?

I'd say they are stuck in the 15s because they cant launch good. It only takes about a 90 mph trap speed to get in the 14s ( with a killer launch)

[CDNTurboZ]

thanks guys, I think I've found a lead on a a555, that should hopefully be plently strong for what I'm doing. Now say if I wanted to run 17 psi, I would need +20's, do I need anything to fool the LM?? How about fpr, and MAP??

Now can I even run 17 psi on 91 octane, thats all I have available........

[supercrackerbox]

Order one of those moly bearing plates, and if everything is in good working order, it WILL be strong enough for what you're doing and then some. Or if you can't find a 555, look for a 520. Get the bearing plate either way, and with that plate a 520 is plenty strong for a 200hp L-body.

[GLHSKEN]

I can't remember the specifics, but the sliders came with a more agressive profile.

For the record... 200 whp (or real close to 200whp) is attainable at 14psi on a T-II. The reason I mentioned that it would take robably 16 psi to pull it off was primarily based on the majority of people I have seen run 16+ psi and never make that. I know someone who converted their car to T-II and professionally done. It was a 2.5, but also had a cal with +20s to boot. It made only 167whp after doing everything right (except the state of tune). I've seen S60 turbo equipped 2.2's with a cal and 3" TU swingvalve and 3" exhaust make only 240whp on 18psi.

For those that can get the tune right... 200whp is attainable. Seems a large majority of others fall short.

Steve is 100% right. Don't change too much too soon. Stick with an MP logic module to start with there are proven SIMPLE ways to make 200+ WHP. Get a baseline then change things more. Otherwise you will have a hard time finding the issue.

Stage II GLHS LM
+20 Injectors
Stock fuel pressure
3" exhaust
Timing 12^
Cam timing correct :nod:
14 PSI will put 200 to the wheels.

[GLHSKEN]

Ran my 12.8's with a moly plated 520. Note.. My car would run 12's on a 50-60 degree day with the stock cooler. Temps in the 80's and ip. it was 13.0-13.1 consistantly at 107mph

[BadAssPerformance]

Kinda like Ken, my T2 shadow ran 13.0's all day long @ ~104mph with a bone stock A520... stock I/C too! :thumb:

[ShelbyZD]

thanks for the input guys, as long as I get close to 200whp I'll be happy, I was thinking of buying a cobalt SS supercharged the other day, and put the charger away for a while, but for maybe $2000 I'll have a faster car than the cobalt :)

For $35 you could have a car just as fast as the cobalt. lol $2000 could put in in league with a viper... at least in the quarter.