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Guess my Dyno!

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#21 ·
You are at high altitude. If I remember correctly, Matt02GT runs a 3.2" pulley on a P1SC to get 9 psi at that altitude. At one time we were pretty much running the same setup but I'm at 383 SAE and he was a 430 SAE. But I was running a 3.7" pulley to get 9 psi. If you are running a small enough pulley to get 11-13 psi at altitude then you will be putting down some serious SAE numbers. JKoldFliesch made 500+ with 9 psi with a P!SC on a similar motor. My guess is 550-575 rwhp. I'm terrible at guessing. At your altitude it could be more.

P.S. My best guess is that Matt would be running around 14 psi with that pulley if he came down off the mountain to sea level.
 
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#22 ·
Eagle2000GT said:
You are at high altitude. If I remember correctly, Matt02GT runs a 3.2" pulley on a P1SC to get 9 psi at that altitude. At one time we were pretty much running the same setup but I'm at 383 SAE and he was a 430 SAE. But I was running a 3.7" pulley to get 9 psi. If you are running a small enough pulley to get 11-13 psi at altitude then you will be putting down some serious SAE numbers. JKoldFliesch made 500+ with 9 psi with a P!SC on a similar motor. My guess is 550-575 rwhp. I'm terrible at guessing. At your altitude it could be more.

P.S. My best guess is that Matt would be running around 14 psi with that pulley if he came down off the mountain to sea level.
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Not to thread jack.

It's so crazy how altitude affects your hp and tq numbers now couldn't this blow stock motors? Like if someone lived there and say went on a road trip and gained a couple psi therefor gaining hp that would put you over the stock internals and blow the engine?
 
#23 ·
It probably really depends on the tune. The tune can be adjusted for max psi. You might be running at 11lb pulley, but you can adjust to not actually make more boost than 8psi, if you understand what I'm saying? At least I think that's how it works? I don't know enough about tuning.. Someone correct me if Im a complete nut job and I'm wrong lol
 
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#24 ·
cLockWise said:
It probably really depends on the tune. The tune can be adjusted for max psi. You might be running at 11lb pulley, but you can adjust to not actually make more boost than 8psi, if you understand what I'm saying? At least I think that's how it works? I don't know enough about tuning.. Someone correct me if Im a complete nut job and I'm wrong lol
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Yeah I get what you're saying but wouldn't they always make a Max psi in all cases so it doesn't fluctuate when entering or leaving different elevations? This is very interesting since ill be on the dyno in 2 months tops...
 
#26 ·
cLockWise said:
It probably really depends on the tune. The tune can be adjusted for max psi. You might be running at 11lb pulley, but you can adjust to not actually make more boost than 8psi, if you understand what I'm saying? At least I think that's how it works? I don't know enough about tuning.. Someone correct me if Im a complete nut job and I'm wrong lol
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Not really. The only way to not make peak boost is to limit your rpms. This isnt a turbo where you can adjust the boost.
 
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#27 ·
blownstang said:
Not really. The only way to not make peak boost is to limit your rpms. This isnt a turbo where you can adjust the boost.
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Ahh so I was thinking of turbo setups.. I knew something could be controlled, but I didn't realize to remember it was turbo setups haha
 
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#28 ·
Supercharger's boost is usually limited by engine rpm and pulley sizes and turbo's are limiting by wastegates. Some people run wastegtes on centri's by running a really small pulley making more boost down low rpms, and bleeding off the excess boost they don't want up top rpms. The tune only deals with how much timing and a/f ratio, not the actual boost pressure.

Damn still no updates?!?!
 
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#29 ·
Black04Pony said:
Not to thread jack.

It's so crazy how altitude affects your hp and tq numbers now couldn't this blow stock motors? Like if someone lived there and say went on a road trip and gained a couple psi therefor gaining hp that would put you over the stock internals and blow the engine?
Click to expand...
Yes, it could blow motors. People have blown motors just by putting on an Anderson power pipe.
 
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Discussion starter · #31 ·
Sorry for dragging you guys along! My girls car broke down to I had to attend to other things first since the shop is almost an hour away from me. Ill be picking it up monday or tuesday depending if i have time before work. I dont have definite numbers but the shop said it made around 590ish and if i wanted more to run methanol or race gas. Ill post the dyno and real numbers when i pick it up.










wicked96gt said:
Whats your fuel setup?
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twin aeromotive 340 pumps on a return system with upgraded lines and baffled cobra tank

blown 02 said:
520+rwhp easily at that boost and motor setup, what type of 5 speed do you have (stock, built or tko)
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I have the stock t-45. next upgrade i want is a T-56

Wooboost283 said:
At that elevation I'd say your pretty much set to see a good 475rwhp+........why you no invest in e85?
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there are only two e85 staions here in utah. both are 40 miles in either direction from me :(
 
Discussion starter · #32 ·
Well the results are in.... sorry it has taken me awhile to get on here I just havent found the time lately.


She made 555 RWHP and 515 RWTQ at only 7 psi. I am happy with my results and the shop i took it to. Premier Performance is amazing!!
ill post a picture of the dyno sheet once i get it on my photobucket!
 
#33 ·
555whp @ 7psi?! That's those heads and compression working. Surely you could run 10psi w/o meth or race gas, right?
 
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#34 ·
High compression FTW. E85 is a little easier to get here in Nebraska, but it is worth the swap. The extra timing will pick up even more power. I am running 24 degrees timing at 18-19lbs on my car.
 
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#35 ·
Damn 555rwhp at only 7psi? SAE or STD? Even if its STD that's very impressive.

I'd run a AIS dual nozzle meth kit, and pulley it for 16-18psi and make some serious power.
 
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#36 ·
Damn! Now you got me all excite to get my car on the dyno!
 
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#40 ·
it's tougher to tune a high cr build and is probably a little more "on the edge" but it can be done.
 
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