Where is my mph
Where is my mph Im runing a Soild roller 4xx setup etp 245 heads , vic jr intake 12.5 to 1 comp. th-400 on the brake, fuddel 5200 converter= junk
My car is runing a 10.50s @ 126 on a cool 60* night...... im traping 7500rpm accros the line @ only 126 with 4.30s gears and a 28in tall tire.... i had fuddel tighten tyhe converter up and no diff i can still get it to go to 5800 on the brake.... is the converter the problem?
My car is runing a 10.50s @ 126 on a cool 60* night...... im traping 7500rpm accros the line @ only 126 with 4.30s gears and a 28in tall tire.... i had fuddel tighten tyhe converter up and no diff i can still get it to go to 5800 on the brake.... is the converter the problem?
converter dosent lock up..... not shure if its apsose to be a lock up car made 460 but the converter was so loose ken said thoes where really good #s for the air and the converter
Depends on your weight. You have a 460 hp car going 10.5 at 126. If your car is close to 3000lbs than you may have a problem, BUT if your car is closer to 3300lbs, IMO you are doing very well. What's you 60' and 1/8 time/mph? Suspension?
David
David
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Verdad Gallardo The 460 rwhp I think is great for going through a th400 and 4:30 gears. Your 1000' mph bothers me as well as your 1/4 mph. I'll bet that converter is crap. With the solid roller I would think you should be going through the traps at 8500+ rpm's no? Your car is a "little" heavy, even with the 10pt you should be able to get it down to 3200 lbs since you weigh only 140. Let's take that 200lbs and say on the some 60* night your down to 10.3 then take another 1/10th off that 60' and your down to 10.2 and add the 3 mph you're up to 129.
So you're looking at 10.2@129 and about 104 in the 1/8 (sounds like some TA I know
) with the converter as it sits.
Solid roller with that compression-car SHOULD be in the 9.9? range at least.
Shave the weight and call Neal Chance for the converter. I took .08 off my 60' and almost .2 off my ET when I put their converter in.
If you can get .2 off your ET with it, you just may get that 9.
So you're looking at 10.2@129 and about 104 in the 1/8 (sounds like some TA I know
) with the converter as it sits.Solid roller with that compression-car SHOULD be in the 9.9? range at least.
Shave the weight and call Neal Chance for the converter. I took .08 off my 60' and almost .2 off my ET when I put their converter in.
If you can get .2 off your ET with it, you just may get that 9.
That MPH is definitely low.. I'm sure the junk *** Fuddle converter has a lot to do with that as well as the 4.30 gears.
My car weighs around 3400lbs maybe a little more and with a 408, AFR 225s, small hydraulic NITROUS cam (246/254 .613/.613 113), half *** tuned, short shifting at 6700rpms with a 3.50 gear (28in tire) & 4500 nitrous converter and no trans brake will trap 125 every pass. Goes 102 in the 1/8th and 125 in the 1/4 with a measly 1.61 short time. I'm sure if I got the tuned nailed down for good, move the timing from 26 degrees to 29 degrees and start shifting it at 7200-7400 rpms that it would run closer to 128-129mph with ease.
My car weighs around 3400lbs maybe a little more and with a 408, AFR 225s, small hydraulic NITROUS cam (246/254 .613/.613 113), half *** tuned, short shifting at 6700rpms with a 3.50 gear (28in tire) & 4500 nitrous converter and no trans brake will trap 125 every pass. Goes 102 in the 1/8th and 125 in the 1/4 with a measly 1.61 short time. I'm sure if I got the tuned nailed down for good, move the timing from 26 degrees to 29 degrees and start shifting it at 7200-7400 rpms that it would run closer to 128-129mph with ease.
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From: Gainesville, Florida # of drag strips runs: ?!?!?
I agree with David's post. Looking at what you're putting down for rwhp and the weight, the times are very much in line with the speeds. A tighter converter may get you a bit more but everything looks to be in-line to me.
Derek
Derek
Originally Posted by Villain281H
I agree with David's post. Looking at what you're putting down for rwhp and the weight, the times are very much in line with the speeds. A tighter converter may get you a bit more but everything looks to be in-line to me.
Derek
Derek
car should run beter then it does hands down
I think it is very low on mph also. A buddie of mine has a 4xx solid roller w/ 11.5 compression and has went 9.70's @ 134 on pump gas. All motor. His race weight is 3350 so i would expect alot more out of your setup. He has 4.10's in the rear also. So good luck getting your bugs worked out. Charles
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From: Gainesville, Florida # of drag strips runs: ?!?!?
Originally Posted by silverbeast
I think it is very low on mph also. A buddie of mine has a 4xx solid roller w/ 11.5 compression and has went 9.70's @ 134 on pump gas. All motor. His race weight is 3350 so i would expect alot more out of your setup. He has 4.10's in the rear also. So good luck getting your bugs worked out. Charles
Derek
Last edited by Villain281H; May 29, 2007 at 11:40 AM.
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From: On the Bumper!
I'd like to see the dyno graph and a logged run showing the shift extension. You may be over shooting the powerband or blowing through the TC.
In hot humid air (+1500 to+1600 DA) @ 3440#s I run 6.52-6.53 @ 105.0 in the 1/8 and 10.2s@131-132mph.
That's through a 4L60E,12 bolt w/3.90 gears,29.5" tire and a 4500ish stall. The altitude may also play a role if you are at good bit higher elevation.
In hot humid air (+1500 to+1600 DA) @ 3440#s I run 6.52-6.53 @ 105.0 in the 1/8 and 10.2s@131-132mph.
That's through a 4L60E,12 bolt w/3.90 gears,29.5" tire and a 4500ish stall. The altitude may also play a role if you are at good bit higher elevation.
