Pitiful dyno results
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Teching In
Joined: Jun 2004
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From: Tampa, FL
Pitiful dyno results Just got back from SE Turbo performance in Dallas, GA (the owner, Paul, is a super nice guy and I highly recommend them) to baseline the LS1 RX7 I picked up and it was disappointing. I'm pretty sure it's a stock '98 F-Body LS1/M6 and it put down 248hp/263tq. From everyone else's I've read, ~300+ is common in stock form. It runs great, no hesitation or anything outwardly wrong as far as I can tell. It's just such a huge drop that I'm not sure where to start looking since nothing seems out of place. Anyone else had similar results?
Thread Starter
Teching In
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From: Tampa, FL
It's a shop that specializes in GNs and Mustangs, so I didn't think to ask him about others. It's not missing on any cylinders, very smooth acceleration with a sweet exhaust note. I'm going to pull the plugs this week while I'm off. Bought the car as a 90% complete project so I'm still working on it. Need to wire up the OBDII port next.
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With RX7's you have to watch how the intake is setup and also the exhaust system. Done wrong and it will drop alot of power. Sounds like you haven't had it scanned or tuned yet either.
Thread Starter
Teching In
Joined: Jun 2004
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From: Tampa, FL
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From: CT/NJ
Dynojet, 22% humidity, 62F ambient, SAE 0.99
It's a shop that specializes in GNs and Mustangs, so I didn't think to ask him about others. It's not missing on any cylinders, very smooth acceleration with a sweet exhaust note. I'm going to pull the plugs this week while I'm off. Bought the car as a 90% complete project so I'm still working on it. Need to wire up the OBDII port next.
It's a shop that specializes in GNs and Mustangs, so I didn't think to ask him about others. It's not missing on any cylinders, very smooth acceleration with a sweet exhaust note. I'm going to pull the plugs this week while I'm off. Bought the car as a 90% complete project so I'm still working on it. Need to wire up the OBDII port next.
Also, how about a sheet? If the curve looks normal and then takes a **** we could point more towards the car as well.
Thread Starter
Teching In
Joined: Jun 2004
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From: Tampa, FL
Ok, starting to sound like maybe it is the car and not the dyno but, we are not there yet. Can you hit up a track and see what the trap speed and race weight are?
Also, how about a sheet? If the curve looks normal and then takes a **** we could point more towards the car as well.
Also, how about a sheet? If the curve looks normal and then takes a **** we could point more towards the car as well.
I wish I could get it to a track, only have a finite amount of time in the states before I drop it off for shipping to Spain. Here's a pic of the data print out, don't have access to a scanner at the moment.
Thread Starter
Teching In
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From: Tampa, FL
Thread Starter
Teching In
Joined: Jun 2004
Posts: 23
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From: Tampa, FL
TECH Fanatic
Joined: Feb 2006
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From: CT/NJ
The red line made me say operator error. Engine wasn't at WOT for a while during recording of the run. Maybe more just rookie mistake than operator error. At least you will know next time.
Lowest LS1 dyno ive seen bone stock convertible pewter and i still remember it to this day and this was several years ago to say the least and it dynoed 274rwhp and highest ive seen was a silver WS6 M6 331rwhp. So definitly something wrong with the dyno shop there because it should not be dynoed in 3rd gear, shouldve been 4th. I have dynoed my car in 3rd gear though and definitly did not make a huge drop in power at all if i can remember it was 9-11rwhp drop compared to 4th. So dont know whats going on but thats just my experience.