FB vs FD
FB vs FD
so i have a 1985 Gsl with a 4 port 13B streetport holley carb intake RB header and exhaust and light weight flywheel clutch and pressure plate my friend has a 93 with exhaust. If we were to race who would win? and what else can i do to make my gsl faster? Thanks for the info or help
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Shut Down The System
Joined: Mar 2005
Posts: 783
Likes: 0
From: Miami
i dont think that dude knew Fd's came tt from factory..a13btrex....but aneways how are a 1st gen and a 3rd gen almsot the same wieght...axles are biggger..rear end is different i dunno im just wondering
Last edited by EL5Letra; Sep 2, 2005 at 08:26 PM.
Well with some 5.12 gears and some traction you might be able to beat the FD stop light to stop light seeing how the FD will have some turbo lag and if he removed averything unnessesary in the car including Pass. seat and and spare tire and jack in the long run though hed lose to gearing and areodynamics....... yeah the fb would loose without boost and alot of work.
FB+FC=F-ME
Joined: Jul 2004
Posts: 3,353
Likes: 5
From: Rohnert Park CA
For the record,
All 3rd gens cam with a twin turbo 13B.There was no N/A or single turbo version.
Single turbo converted 3rd gens are usually WAY more powerful than the stockers since the factory twins are restrictive and designed for lowend driveability and responsiveness.Anyone serious about 3rd gen power will dump the twins right away for a big single.
Your 1st gen doesnt stand a chance BTW.You putting out around 200HP or so with the 13B and Holley.The 3rd gen makes 255HP bone stock and the fact its force fed means its got a big flat torque curve that comes on low,unlike a peaky,ported N/A engine.
All 3rd gens cam with a twin turbo 13B.There was no N/A or single turbo version.
Single turbo converted 3rd gens are usually WAY more powerful than the stockers since the factory twins are restrictive and designed for lowend driveability and responsiveness.Anyone serious about 3rd gen power will dump the twins right away for a big single.
Your 1st gen doesnt stand a chance BTW.You putting out around 200HP or so with the 13B and Holley.The 3rd gen makes 255HP bone stock and the fact its force fed means its got a big flat torque curve that comes on low,unlike a peaky,ported N/A engine.
love the braaaap
Joined: Jul 2003
Posts: 3,771
Likes: 5
From: Bognor, Ontario
I think it would be a closer race than these guys are making it out to be. All things considered, the FB will loose, but I don't think it will loose by much. Guessing that you have about 200hp at the flywheel, FD's are 255hp, you would loose easy. But you also have to consider weight. The FD's usually weigh about 2900lbs, about 400-500lbs heavier than the FB. The FB is also geared higher than the FD, making it accelerate a little faster comparatively.
Using an acceleration calculator, I came up with this. The FD should do a 14.2 second quarter mile, while your 200hp FB should do it in 14.4 sec. Not a whole lot of difference. Theres more to consider, but thats a good starting point. BTW, the calculator I used says the stock FB with 105 hp will do a quarter mile in 17.9 seconds.
Using an acceleration calculator, I came up with this. The FD should do a 14.2 second quarter mile, while your 200hp FB should do it in 14.4 sec. Not a whole lot of difference. Theres more to consider, but thats a good starting point. BTW, the calculator I used says the stock FB with 105 hp will do a quarter mile in 17.9 seconds.
Last edited by 85rotarypower; Sep 2, 2005 at 11:15 PM.
love the braaaap
Joined: Jul 2003
Posts: 3,771
Likes: 5
From: Bognor, Ontario
I forgot to mention that the calculator I used seems to be about a half second too slow. I used a few different cars that I know the specs of, and it was consistently .4-.5 seconds too slow.
So little time and money
Joined: Feb 2003
Posts: 746
Likes: 1
From: NorCAL
Motor Trend, July 1993
RX-7
0-60 in 5.3
1/4 mile in 13.9 @ 100mph
.97g Skidpad
68mph slalom
It will depend a lot on driver in addition to the cars themselves, but on paper the FD seems to be quicker.
RX-7
0-60 in 5.3
1/4 mile in 13.9 @ 100mph
.97g Skidpad
68mph slalom
It will depend a lot on driver in addition to the cars themselves, but on paper the FD seems to be quicker.
Microtech Tuning!
Joined: Feb 2002
Posts: 1,828
Likes: 0
From: 626 Socal
Originally Posted by 85rotarypower
I think it would be a closer race than these guys are making it out to be. All things considered, the FB will loose, but I don't think it will loose by much. Guessing that you have about 200hp at the flywheel, FD's are 255hp, you would loose easy. But you also have to consider weight. The FD's usually weigh about 2900lbs, about 400-500lbs heavier than the FB. The FB is also geared higher than the FD, making it accelerate a little faster comparatively.
Using an acceleration calculator, I came up with this. The FD should do a 14.2 second quarter mile, while your 200hp FB should do it in 14.4 sec. Not a whole lot of difference. Theres more to consider, but thats a good starting point. BTW, the calculator I used says the stock FB with 105 hp will do a quarter mile in 17.9 seconds.
Using an acceleration calculator, I came up with this. The FD should do a 14.2 second quarter mile, while your 200hp FB should do it in 14.4 sec. Not a whole lot of difference. Theres more to consider, but thats a good starting point. BTW, the calculator I used says the stock FB with 105 hp will do a quarter mile in 17.9 seconds.
The FD will be a bit faster but it won't be an azz stomping. You should be making about 225 hp to the flywheel and he is probably making 265-270 but he has a wider powerband.
Spray him or pull one of the hoses on his vacuum box!
Spray him or pull one of the hoses on his vacuum box!
