is my gto weak?
06-09-2012, 03:08 AM
#23
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Very, very serious.
When I dynoed at 376rwhp on a Dyno Jet 248C I ran 12.09 @ 113mph.
A change of diff gears, converter and a FAST 90 manifold and the dyno went up to 392rwhp and the track times dropped to 11.79 @ 115mph.
These same setup also ran a few 117.8mph passes.
When I dynoed at 376rwhp on a Dyno Jet 248C I ran 12.09 @ 113mph.
A change of diff gears, converter and a FAST 90 manifold and the dyno went up to 392rwhp and the track times dropped to 11.79 @ 115mph.
These same setup also ran a few 117.8mph passes.
Last edited by Dyno Junkie; 06-10-2012 at 04:26 AM.
06-09-2012, 02:38 PM
#24
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Drop your lauch to 3500, so you don't spin as much off the line. That should help your 60' times. As for the top end, run it out the back door and see what happens. What is your RPM at the stripe? Might have to change rear tire size to accomodate the gearing for the top end.
06-09-2012, 04:30 PM
#25
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He's so far off on traps that he needs to find out what's wrong. I wouldn't waste money on another dyno either until it gets fixed. Post up your logs and if you have a wideband O2 we'll be able to tell even more. FWIW I've never seen anyone with a Dynojet 300 RWHP GTO trap 110 MPH. Stock LS2s (around 320-330 RWHP) usually trap ~108-109 MPH
06-09-2012, 04:32 PM
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Very, very serious.
When I dynoed at 376rwhp on a Dyno Jet 248C I ran 12.09 @ 112mph.
A change of diff gears, converter and a FAST 90 manifold and the dyno went up to 392rwhp and the track times dropped to 11.79 @ 115mph.
These same setup also ran a few 117.8mph passes.
When I dynoed at 376rwhp on a Dyno Jet 248C I ran 12.09 @ 112mph.
A change of diff gears, converter and a FAST 90 manifold and the dyno went up to 392rwhp and the track times dropped to 11.79 @ 115mph.
These same setup also ran a few 117.8mph passes.
Show me a couple of GTOs putting down 300rwhp trapping 110mph or a 13.0 ET. ****, you probably can't find one. And ATCO don't count. You can put a car in Neutral and it'll trap 100mph @ 14.00.
Last edited by danieloneil01; 06-09-2012 at 04:38 PM.
06-09-2012, 11:12 PM
#29
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For those doubters out there have been several MANUAL coupes and sedans go 110mph with around 300rwhp.
Our car is automatic which compared to a manual generally run a slower mph at the the same ET.
Our car is automatic which compared to a manual generally run a slower mph at the the same ET.
06-10-2012, 02:33 AM
#30
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LS2s put down ~330 RWHP stock and no LS1 I know of ran 300 RWHp and trapped 110. I ran fast for a stock car and only did 105. I got about 110 with headers, intake and tune but I was more like 330 then (M6). A perfect reason the dynos are crap for a gauge of performance. How fast you go is how fast you go.
06-10-2012, 09:26 AM
#31
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LS2s put down ~330 RWHP stock and no LS1 I know of ran 300 RWHp and trapped 110. I ran fast for a stock car and only did 105. I got about 110 with headers, intake and tune but I was more like 330 then (M6). A perfect reason the dynos are crap for a gauge of performance. How fast you go is how fast you go.
Does the car run smooth almost like you are a cylinder or so down. Get some data logs and maybe compression check. Keep us posted.
06-10-2012, 12:46 PM
#32
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The car runs real good, I didn't get it to the track because of rain, but I noticed cat over temp was still enabled and it definitely seems to pull harder on the other end now since its not bogging it self down with fuel. I'll take it to the track this Friday if the rain holds out.
06-20-2012, 08:21 AM
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Whay track in bama? I usually visit steele or mmp. I know my m6 went 13.0@107 stock and 12.8@108.xx with just a intake. Fastest stock one i've seen on dr's went 12.6@110, but he was launching from 5k!
07-10-2012, 02:47 PM
#35
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Trapping I managed to run a 12.821 @ 110mph bone stock the temperatures were perfect and it was at Cecil county so take that for what it is. That was in a 2006 m6,I would advise sticky tires and a really good tune, you can have the best parts out there, with a junk tune you have great parts not a fast car, just my two cents.
07-20-2012, 08:43 AM
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I have seen gutted fbodies run 12.9@110 right around 300whp. I think its possible but highly unlikely. for a full weight GTO i think 350whp would be needed to run 13.0@110.
My 2000 firebird ran 13.4@105.9 stock. With cam, stall, exhaust, intake i ran mid 12s around 111mph 360whp 3750lb race weight
My 2000 firebird ran 13.4@105.9 stock. With cam, stall, exhaust, intake i ran mid 12s around 111mph 360whp 3750lb race weight
07-21-2012, 06:53 AM
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I trap 112-113 with headers/tune in my A4. With 1.9 60', it goes 12.5. I took some weight out as well. Even my 12.5 at 112-113 with my bolt-ons seems slow to me. I couldn't imagine how I would feel with a 13.0 with all those mods. You have probably 100whp on me. I've seen some guys with my trap run high 11's low 12's.
