Back From The Dyno
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Member
Joined: Jul 2005
Posts: 218
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From: Windsor,Ontario
Car: 1991 Firebird Formula WS6
Engine: LB9
Transmission: T5
Axle/Gears: 3.42's
Back From The Dyno
local car club forum had a dyno day at a local shop for getting some baselines done...so for 60$ canadian i got 2 pulls and 2 printouts which is a pretty good deal....anyways onto the results
Car is a 1991 Firebird Formula LB9 and a T5... mods are.. Custom CAI, TB bypass and a Ported Plenum (just the EGR shroud things)
the best of the 2 pulls was a 206.4 RWHP and 291.6 RWTQ.... i was pleased with the results.....
heres a video of the pull
Dyno Run 1
Ben
Car is a 1991 Firebird Formula LB9 and a T5... mods are.. Custom CAI, TB bypass and a Ported Plenum (just the EGR shroud things)
the best of the 2 pulls was a 206.4 RWHP and 291.6 RWTQ.... i was pleased with the results.....
heres a video of the pull
Dyno Run 1
Ben
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
LB9 stick cars that got the good cam make good power. if yours isnt a G92 car, then its rated at 205hp/285 torque.
your putting more than that at the wheels with mild mods. seems like TPI ratings are more rwhp figures than crank. these motors are underated
thats a good number. 206whp is nice for those mods, but that 291 torque is way up there.
get some headers/exhaust and see what it does.
your putting more than that at the wheels with mild mods. seems like TPI ratings are more rwhp figures than crank. these motors are underated
thats a good number. 206whp is nice for those mods, but that 291 torque is way up there.
get some headers/exhaust and see what it does.
Last edited by Orr89RocZ; Jan 21, 2006 at 08:32 PM.
Thread Starter
Member
Joined: Jul 2005
Posts: 218
Likes: 0
From: Windsor,Ontario
Car: 1991 Firebird Formula WS6
Engine: LB9
Transmission: T5
Axle/Gears: 3.42's
went in september.... ran a 14.92 @ 92.4 with a 2.2 60 foot.....hoping to cut down on my 60 foot time to bring it to the mid 14's....
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Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
hmm i figured it might be a bit quicker than that. 92mph? makes me wonder what i'm puttin down at the wheels. my L98 has 150K miles on it and only headers/catback/CAI with 2800 stall and i'm doing 100mph and 13.9s
Thread Starter
Member
Joined: Jul 2005
Posts: 218
Likes: 0
From: Windsor,Ontario
Car: 1991 Firebird Formula WS6
Engine: LB9
Transmission: T5
Axle/Gears: 3.42's
the 1/4 mile time was in bone stock form... i didnt have any of the 3 small mods ive done...so it might be a little quicker.. but probably not by much...
Supreme Member
Joined: Sep 2005
Posts: 1,818
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Car: ws6
Engine: ls1
Transmission: m6
Axle/Gears: 3.42
Originally posted by Orr89RocZ
hmm i figured it might be a bit quicker than that. 92mph? makes me wonder what i'm puttin down at the wheels. my L98 has 150K miles on it and only headers/catback/CAI with 2800 stall and i'm doing 100mph and 13.9s
hmm i figured it might be a bit quicker than that. 92mph? makes me wonder what i'm puttin down at the wheels. my L98 has 150K miles on it and only headers/catback/CAI with 2800 stall and i'm doing 100mph and 13.9s
150K and running 13.9's is insane for that car. Id say your putting down around 230 or so.
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
i figured it be more than that for 100mph trap speeds in a auto with 3.27 gears. its a beast. i wanna see what it will do on slicks
13.9's is kinda weak but i blame that on gearing for the most part. first gear is deep but 2nd drops too much. i'm gonna get her dyno'd in the spring/summer just to see whats up with it.
92 aint too bad for bone stocker. those mild mods would free up some hp but i dont know how much a difference it make in the 1/4. maybe 10-15hp dependng on the porting to the plenum. i'd say your capable of 94mph traps easy. thats good for mid 14's. drop that 60 foot down and you should see those times
13.9's is kinda weak but i blame that on gearing for the most part. first gear is deep but 2nd drops too much. i'm gonna get her dyno'd in the spring/summer just to see whats up with it.92 aint too bad for bone stocker. those mild mods would free up some hp but i dont know how much a difference it make in the 1/4. maybe 10-15hp dependng on the porting to the plenum. i'd say your capable of 94mph traps easy. thats good for mid 14's. drop that 60 foot down and you should see those times
Last edited by Orr89RocZ; Jan 21, 2006 at 10:11 PM.
Thread Starter
Member
Joined: Jul 2005
Posts: 218
Likes: 0
From: Windsor,Ontario
Car: 1991 Firebird Formula WS6
Engine: LB9
Transmission: T5
Axle/Gears: 3.42's
yea... 440 treadwear tires.. with normal street PSI is quite difficult to cut a decent 60 foot time... but if i could hit mid 14's with just these mods with some new tires (ordered them on wednesday) i'd be pretty happy...
Supreme Member
Joined: Sep 2005
Posts: 1,818
Likes: 0
Car: ws6
Engine: ls1
Transmission: m6
Axle/Gears: 3.42
Originally posted by Orr89RocZ
i figured it be more than that for 100mph trap speeds in a auto with 3.27 gears. its a beast. i wanna see what it will do on slicks
13.9's is kinda weak but i blame that on gearing for the most part. first gear is deep but 2nd drops too much. i'm gonna get her dyno'd in the spring/summer just to see whats up with it.
92 aint too bad for bone stocker. those mild mods would free up some hp but i dont know how much a difference it make in the 1/4. maybe 10-15hp dependng on the porting to the plenum. i'd say your capable of 94mph traps easy. thats good for mid 14's. drop that 60 foot down and you should see those times
i figured it be more than that for 100mph trap speeds in a auto with 3.27 gears. its a beast. i wanna see what it will do on slicks
13.9's is kinda weak but i blame that on gearing for the most part. first gear is deep but 2nd drops too much. i'm gonna get her dyno'd in the spring/summer just to see whats up with it.92 aint too bad for bone stocker. those mild mods would free up some hp but i dont know how much a difference it make in the 1/4. maybe 10-15hp dependng on the porting to the plenum. i'd say your capable of 94mph traps easy. thats good for mid 14's. drop that 60 foot down and you should see those times
I see your times are great but if you think about it this way. It come stock with 230. U have headers and a cat-back which gives you plus 15-25hp. So I dont see how you can be much over 255 at the flywheel. Maybe its just me its been a long day......
Last edited by 89IrocZ350TPI; Jan 21, 2006 at 11:24 PM.
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