Just got back from the dyno today. How do these numbers look?

**TA01** · 07-10-2006, 04:03 PM

I just got my 2001 Pontiac Trans Am dynoed on a Dynojet dyno. It is a bone stock automatic 3.23 geared car. It has the stock air filter and exhaust on it. I had two dyno runs. My best was 296.1 rwhp 318.4 torque SAE numbers. My STD factor numbers were 302.6 rwhp 325.3 torque. I would like to know if these are good numbers for my car. I ran my car a few weeks ago and it ran a 13.5 103 mph 2.08 60 ft on street tires in 83 degree weather with a little wheel hop. Do you think it is possible to run a little quicker at the track with some drag radials

and some supspension work judging by my dyno numbers. Also, will a SLP air lid, and a hooker catback exhaust put me over 300 rwhp SAE numbers. Thanks everybody.

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**Huskerz1** · 07-10-2006, 04:27 PM

I think those numbers are on par. Of course you'll run quicker with drag radials. I would also say 100% yes to the lid and catback puttin you over 300rwhp easy. Were only talkin 4 hp here. You could do free mods to get there also. Your auto would even do better at the track with a torque converter.

**Hurley711** · 07-10-2006, 04:59 PM

Healthy normal numbers for a stock LS1....now start modding....Hooker Cb is a nice 1st mod, get yourself a lid and some SFC also

**mrr23** · 07-14-2006, 06:42 PM

better than my formula did. 276 rwhp 284 rwtq ran 13.60 @ 101.66 all stock.

**ProwlerZ** · 07-26-2006, 12:06 PM

Not bad numbers, like stated above, 300 is a low goal, so it'll be easy to hit. Do the FRA and shave the lid-ridges, pull the baffles out and put a smooth bellow in and you'll be over 300. Throw on a lid and a cat-back and you'll be around 315, LTs, ory/x and you'll be well over 330. I'd also suggest a stall, but since I'm an M6 guy, I can't really give advice on that. Oh, get some SFCs too, They'll really stiffen things up for you.

***BlownC5*** · 07-30-2006, 10:06 PM

those are solid numbers for a stock LS1

**Bob'sWS6** · 08-04-2006, 06:07 PM

Those look like good numbers to me. The autos tend to dyno a little less then the manual tranny cars, but run better at the track on the average.

**Danger731** · 08-04-2006, 06:15 PM

nice for stock, whats your milage ?

**GA Country Boy** · 08-04-2006, 11:24 PM

You can dowload some free software and run all kinds of different calculations so you will know about what to expect: www.virtualengine2000.com/draglist.htm

**GA Country Boy** · 08-19-2006, 09:55 AM

Originally Posted by Bob'sWS6

Those look like good numbers to me. The autos tend to dyno a little less then the manual tranny cars, but run better at the track on the average.

You're absolutely right. If you know the RWHP (like off a dyno) you can estimate the engine (flywheel) HP for comparative/baseline/improvement or other purposes. The usually accepted real wheel hp loss factors are 12% manual and 18% automatics or RWHP/.88 = Engine (flywheel) HP manual, and RWHP/.82 = Engine HP (flywheel) automatic. Many just use 15% for both which is not fair to the manuals and is generous to the autos, because autos experience greater drive train loss than manuals.