[BADDASSC6]

Originally Posted by Vettezuki

I'm calling (w/clean shifts and a not too hot day) 128+- a lil. Are you coming on 10/31?

No way he is in the teens.
Adam how often are you in Diego? Lets get together. I don't care it it's from a dig or a roll.

[enkeivette]

I live in SD. Just come up to OC on the weekend to see the GF. Don't bring Cambria down here with me though, she is my weekend cruiser. And I don't want to have to punish your C6 with my sweet 140hp Neon lowered to srock height.



Ron, I remember. I'd love to have your lineup. FI weekend warrior like the Cobra, straight line monster like the Chevelle and an offroad vehicle.

I'd like to have a 1st gen Camaro, a C5 or a C6 and a long travel 2wd Ranger with a built V8.

[enkeivette]

How about this, I'll race your C6 with my C3 from a roll. And if i win, we trade cars straight up.

[enkeivette]

Some math for fun:

432/315 = 1.3714

.31714/5 = .07429 addition hp per lb over NA

.07x13 = .9657 theoretical percentage increase at 13lb over NA based on 5lb increase

1.9657x315 = 619.2 whp

But, I've found that cooling the air can drop the pressure 3lbs as tested. So doing the math at 10lbs I get:

549 whp (like you guys are guessing)/ 83 = 661 bhp

I'll bet there is a much better way to do this if you know the common compressor outlet temp and can use the temp difference from the inlet temp to find out the pressue increase. Then use that to find the realistic 02 increase, then subtract pumping loss as a percentage. Then add 30-50hp for the AFR which we haven't been doing, and rightfully so because I'm sure the above mentioned will subtract more than 30-50hp.

[enkeivette]

For the record, I'm always disappointed dyno day, so I'm guessing closer to 500whp.

[94cobra69ss396]

Originally Posted by enkeivette

Some math for fun:

432/315 = 1.3714

.31714/5 = .07429 addition hp per lb over NA

.07x13 = .9657 theoretical percentage increase at 13lb over NA based on 5lb increase

1.9657x315 = 619.2 whp

But, I've found that cooling the air can drop the pressure 3lbs as tested. So doing the math at 10lbs I get:

549 whp (like you guys are guessing)/ 83 = 661 bhp

I'll bet there is a much better way to do this if you know the common compressor outlet temp and can use the temp difference from the inlet temp to find out the pressue increase. Then use that to find the realistic 02 increase, then subtract pumping loss as a percentage. Then add 30-50hp for the AFR which we haven't been doing, and rightfully so because I'm sure the above mentioned will subtract more than 30-50hp.

According to my tuner Steve, who has measured outlet temps on setups like my Cobra that don't have an intercooler, the outlet temps range between 250 and 300 degrees at the 11-12psi my engine sees. Notice in the tests that without an intercooler the outlet temp was 199.2 degrees at 8.2psi and they had the timing pulled back to 22 degrees. With an intercooler the temp was only 120 with the same 8.2psi and they were able to run 30 degrees. By increasing the psi to 11.5 the outlet temp rose just under 20 degrees or roughly 14% with an intercooler. See where I'm going with this? Do you still think you can run 26 degrees with 13psi, no intercooler and 91? Remember, this was testing on a dyno, not a car that is sitting in traffic and then being gunned to get on the freeway.

Also, notice in the tests that it took 58hp to turn the P600B at 8.2psi measured at the manifold and 74hp on the same blower to make 11.5psi. That's roughly 21%. Assuming it would take that same 21% to make another 2 psi the blower would be consuming about 90hp.

[BRUTAL64]

"But I think Brutal takes the McGyver title on this forum. What was it? $11 and change for 400hp"?





Yes, about $12.00. Yep, all used parts (free). The only new stuff was the paint and brass freeze plugs.

I swear, the drugs of that day (1988) had nothing to do with it.

[SeanPlunk]

Originally Posted by BRUTAL64

"But I think Brutal takes the McGyver title on this forum. What was it? $11 and change for 400hp"?





Yes, about $12.00. Yep, all used parts (free). The only new stuff was the paint and brass freeze plugs.

I swear, the drugs of that day (1988) had nothing to do with it.

[BRUTAL64]

Originally Posted by enkeivette

I'd like to have a 1st gen Camaro, a C5 or a C6 and a long travel 2wd Ranger with a built V8.

First Gen Camaro----

[BRUTAL64]

Originally Posted by SeanPlunk

No, not that one.