E.T. too slow for the current upgrades?
#1
E.T. too slow for the current upgrades?
Hey everyone I was wondering if anyone had any ideas on this. I have a fb with a 4 port 13b swap(out of an rx-5), that has a header, 2.5" exhaust, racing beat intake and weber dcoe carb. I went to the track and ran 16.6. That just seems slow to me for all the upgrades that I have. Does anyone have any idea why it would be this slow?
#5
well, that's the first place i would look. GRANTED... everything else seems good. maybe check the ignition? fuel flow, how is your launch? shift points? car ever been on a dyno? oh, and maybe time for a compression check?
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#8
If he streetported it, I would guess someware around 200 hp. So mid to low 14's would be reachable if you have very good launch and excellent shifting technique. In otherwords, lighning fast shifts. You would probably need a heavy duty clutch to keep it from sliping too much and give better launch and shifts.
#12
150-160 HP should put you into the mid 15s, same as a 12A with RB intake, dellorto side draft, RB headers, straight exhaust. your car's as fast as a good running stock 12A rx7 with K&N air filter (my friend's ran that all the time)
#13
Originally posted by Directfreak
Are you at any high elevation?
That does sound slow. The RX-5 13B had small tiny ports though..
Compression?
Are you at any high elevation?
That does sound slow. The RX-5 13B had small tiny ports though..
Compression?
#14
Your compression would have to be pretty damn crappy to be running that slow. Your car would also run rough. Judging from what you have said, I think you should at least be running in the low 15's.
#15
My mostly stock GSL runs 16.4 with more in it so there's something up.
What are your trap speeds? Trap speed is an indication of how much power you're making, ET is an indication of how good of a launch you have and how well you drive it.
What are your trap speeds? Trap speed is an indication of how much power you're making, ET is an indication of how good of a launch you have and how well you drive it.
#16
Originally posted by peejay
My mostly stock GSL runs 16.4 with more in it so there's something up.
What are your trap speeds? Trap speed is an indication of how much power you're making, ET is an indication of how good of a launch you have and how well you drive it.
My mostly stock GSL runs 16.4 with more in it so there's something up.
What are your trap speeds? Trap speed is an indication of how much power you're making, ET is an indication of how good of a launch you have and how well you drive it.
#17
Originally posted by shm21284
150-160 HP should put you into the mid 15s, same as a 12A with RB intake, dellorto side draft, RB headers, straight exhaust. your car's as fast as a good running stock 12A rx7 with K&N air filter (my friend's ran that all the time)
150-160 HP should put you into the mid 15s, same as a 12A with RB intake, dellorto side draft, RB headers, straight exhaust. your car's as fast as a good running stock 12A rx7 with K&N air filter (my friend's ran that all the time)
#19
Originally posted by mwatson184
If by nasty you mean black, then you are running too rich.
If by nasty you mean black, then you are running too rich.
#20
If your trap speed is 81 then you're probably driving it OK! I hate to say it's the car's fault since fixing the driver is free, but that's how it goes.
You didn't mention what fuel pump you have. Stock fuel pump is barely sufficient to make stock power.
You didn't mention what fuel pump you have. Stock fuel pump is barely sufficient to make stock power.
#21
Originally posted by peejay
If your trap speed is 81 then you're probably driving it OK! I hate to say it's the car's fault since fixing the driver is free, but that's how it goes.
You didn't mention what fuel pump you have. Stock fuel pump is barely sufficient to make stock power.
If your trap speed is 81 then you're probably driving it OK! I hate to say it's the car's fault since fixing the driver is free, but that's how it goes.
You didn't mention what fuel pump you have. Stock fuel pump is barely sufficient to make stock power.
#25
Originally posted by 79+80+84_rx-7
either one, you will need a fuel pressure regulator to go with it, and a psi gauge for safe sakes....
Is it cutting out in the higher rpms?
either one, you will need a fuel pressure regulator to go with it, and a psi gauge for safe sakes....
Is it cutting out in the higher rpms?