Educated guess on 1/8th mile time!!!

USMC302 · 03-10-2007, 01:58 PM

I went 7.601@92.2 last night, had to launch very low RPM to hook, crappy track. That converts to a 11.86@116. Got some more work to do but I think if I could have launched at 6000 like normal the 60ft's could have come down and times would have been better

1987StangL268X · 03-11-2007, 03:47 PM

You leave at 6000!!! must be a manual cause that would be one converter to stall 6000! And no wonder you blew the tires off why so high? And tell me your rearend/driveshaft/axles/mounts/etc isnt stock! lol

i must baby mine

USMC302 · 03-12-2007, 10:44 AM

Why not so high? I usually bogg down under 6k, the ET streets really grab for me. No, nothing in the rear is stock, only the T-5 is completely stock. I'm looking at getting my axle tubes welded next. I've launched at 6k many times and left hard and straight.

1987StangL268X · 03-12-2007, 09:57 PM

that seems a little ridiculous to me

...... but i also do not think that shifting a 302 thats not stroked above 5900 is realistic, thats just me. What do you shift @? 6600?

USMC302 · 03-13-2007, 09:52 AM

I am stroked.....I shift at 6300.

1987StangL268X · 03-13-2007, 10:32 PM

How much do you pick up from shifting @ 5900 to shifting @ 6300???

USMC302 · 03-13-2007, 11:45 PM

Never been on a dyno, but the 331's like to rev, ask Jeff! lol he knows about high revving, anyway, I decided to shift there because I can feel the torque die off there, it pulls hard up top till then.

Dark_5.0 · 03-14-2007, 03:40 PM

Quote:

Originally Posted by 1987StangL268X

that seems a little ridiculous to me

...... but i also do not think that shifting a 302 thats not stroked above 5900 is realistic, thats just me. What do you shift @? 6600?

I launch my 302 @6000rpms and shift at 6500 rpms. My cam is custom made for that power band and my heads flow enough to still pull past 6000.

All motors are different. You can build a motor to make power to 4,000 rpms or 15,000 rpms, you just need the right machining and parts.

03-10-2007, 01:58 PM	#1
USMC302 Registered Member Join Date: Apr 2001 Location: Gallatin, Tn Posts: 1,326	Re: Educated guess on 1/8th mile time!!! I went 7.601@92.2 last night, had to launch very low RPM to hook, crappy track. That converts to a 11.86@116. Got some more work to do but I think if I could have launched at 6000 like normal the 60ft's could have come down and times would have been better __________________

03-11-2007, 03:47 PM	#2
1987StangL268X Registered Member Join Date: Feb 2007 Location: Tennessee Posts: 38	Re: Educated guess on 1/8th mile time!!! You leave at 6000!!! must be a manual cause that would be one converter to stall 6000! And no wonder you blew the tires off why so high? And tell me your rearend/driveshaft/axles/mounts/etc isnt stock! lol i must baby mine __________________ 1987 mustang hatchback. weld wheels, driveshaft loop, subframe connectors,308 w/ 520 lift cam, edelbrock perf rpm alum heads 2.02 1.60 valves, 1.6 roller rockers, edelbrock air gap performer intake, roller lifters, 625 vac secondary demon, c-4 trans w 3,000 stall, 3.73 gears

03-12-2007, 10:44 AM	#3
USMC302 Registered Member Join Date: Apr 2001 Location: Gallatin, Tn Posts: 1,326	Re: Educated guess on 1/8th mile time!!! Why not so high? I usually bogg down under 6k, the ET streets really grab for me. No, nothing in the rear is stock, only the T-5 is completely stock. I'm looking at getting my axle tubes welded next. I've launched at 6k many times and left hard and straight. __________________

03-12-2007, 09:57 PM	#4
1987StangL268X Registered Member Join Date: Feb 2007 Location: Tennessee Posts: 38	Re: Educated guess on 1/8th mile time!!! that seems a little ridiculous to me ...... but i also do not think that shifting a 302 thats not stroked above 5900 is realistic, thats just me. What do you shift @? 6600? __________________ 1987 mustang hatchback. weld wheels, driveshaft loop, subframe connectors,308 w/ 520 lift cam, edelbrock perf rpm alum heads 2.02 1.60 valves, 1.6 roller rockers, edelbrock air gap performer intake, roller lifters, 625 vac secondary demon, c-4 trans w 3,000 stall, 3.73 gears

03-13-2007, 09:52 AM	#5
USMC302 Registered Member Join Date: Apr 2001 Location: Gallatin, Tn Posts: 1,326	Re: Educated guess on 1/8th mile time!!! I am stroked.....I shift at 6300. __________________

03-13-2007, 10:32 PM	#6
1987StangL268X Registered Member Join Date: Feb 2007 Location: Tennessee Posts: 38	Re: Educated guess on 1/8th mile time!!! How much do you pick up from shifting @ 5900 to shifting @ 6300??? __________________ 1987 mustang hatchback. weld wheels, driveshaft loop, subframe connectors,308 w/ 520 lift cam, edelbrock perf rpm alum heads 2.02 1.60 valves, 1.6 roller rockers, edelbrock air gap performer intake, roller lifters, 625 vac secondary demon, c-4 trans w 3,000 stall, 3.73 gears

03-13-2007, 11:45 PM	#7
USMC302 Registered Member Join Date: Apr 2001 Location: Gallatin, Tn Posts: 1,326	Re: Educated guess on 1/8th mile time!!! Never been on a dyno, but the 331's like to rev, ask Jeff! lol he knows about high revving, anyway, I decided to shift there because I can feel the torque die off there, it pulls hard up top till then. __________________

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