Turbo Tech >>> GM 4L60e
07-08-2007, 01:00 AM
#1
Turbo Tech >>> GM 4L60e Drove the Camaro to the track Friday night...
Unfortunatly, I had to trailer it home.
I did get to make 3 1/2 passes though.
For the first three passes I ran off the wastegate at 9-10psi, at this boost level it dynoed about 630rwhp.
On the first pass, I left off idle and rolled out to a 1.928 60ft. LOL!
60ft 1.928
330ft 4.816
1/8th 7.143 @ 105.72mhp
1000ft 9.140
1/4 10.815 @ 134.89
On the second pass, I left abit harder, loaded up the converter abit.
60ft 1.695
330ft 4.532
1/8th 6.833 @ 106.53mph
1000ft 8.815
1/4 10.477 @ 135.97 mph
Left pretty much the same as the last pass.
60ft 1.738
330ft 4.510
1/8th 6.800 @ 107.25mph
1000ft 8.773
1/4 10.432 @ 135.91mph
Then on the next pass, I got kinda greedy... and upped the boost to 17psi (about 750 ish rwhp)
60ft 1.684
330ft
1/8th
MPH
1000ft
1/4
Right before the 60' the car attempted to perform the 1-2 shift... Thats all she wrote. I'll get it torn down in the next few days to see what popped, initial thought is input shaft to the trans.
Btw, this is with 17" ZR-1 wheels all the way around
17X9"s up front with 275/40/17s at 35 psi and 17X11"s out back with the new M&H Drag radials (325/45/17). I was really impressed with how the M&H Racemasters hook. Not that I was cutting amazing 60's but the fact that they held the power. When I am just foot braking it, the power comes on like a freight train about 70' out.
I wish I knew how much the car weighs, I believe its about 3600 with me in it.
Ryan K.
Unfortunatly, I had to trailer it home.
I did get to make 3 1/2 passes though.
For the first three passes I ran off the wastegate at 9-10psi, at this boost level it dynoed about 630rwhp.
On the first pass, I left off idle and rolled out to a 1.928 60ft. LOL!
60ft 1.928
330ft 4.816
1/8th 7.143 @ 105.72mhp
1000ft 9.140
1/4 10.815 @ 134.89
On the second pass, I left abit harder, loaded up the converter abit.
60ft 1.695
330ft 4.532
1/8th 6.833 @ 106.53mph
1000ft 8.815
1/4 10.477 @ 135.97 mph
Left pretty much the same as the last pass.
60ft 1.738
330ft 4.510
1/8th 6.800 @ 107.25mph
1000ft 8.773
1/4 10.432 @ 135.91mph
Then on the next pass, I got kinda greedy... and upped the boost to 17psi (about 750 ish rwhp)
60ft 1.684
330ft
1/8th
MPH
1000ft
1/4
Right before the 60' the car attempted to perform the 1-2 shift... Thats all she wrote. I'll get it torn down in the next few days to see what popped, initial thought is input shaft to the trans.
Btw, this is with 17" ZR-1 wheels all the way around
17X9"s up front with 275/40/17s at 35 psi and 17X11"s out back with the new M&H Drag radials (325/45/17). I was really impressed with how the M&H Racemasters hook. Not that I was cutting amazing 60's but the fact that they held the power. When I am just foot braking it, the power comes on like a freight train about 70' out.I wish I knew how much the car weighs, I believe its about 3600 with me in it.
Ryan K.
Last edited by Ryan K; 07-08-2007 at 01:14 AM.
07-08-2007, 02:57 AM
#4
Eh, I'll get it all worked out...
I bet a trans brake would really help my car get off the line abit quicker.
Depending on whats broke, the 4L60e might just go back in. My tranny guy says he'll build'em for free just to see what it'll take.
Ryan K.
I bet a trans brake would really help my car get off the line abit quicker.
Depending on whats broke, the 4L60e might just go back in. My tranny guy says he'll build'em for free just to see what it'll take.
Ryan K.
07-08-2007, 05:07 AM
#6
Originally Posted by Inspector12
Good runs regardless. better start thinking about a 4L80 I don't think a 4L60 will live long under those power levels, but if you have the paticence then you could find out LOL!
If they can fit it in a Supra then I am sure they can surely do it in an F-body. The local shop that is doing mine is charging $2300 for a built to the hilt 4L80E and when it is all said and done it will cost me around $6k for the custom install.. It is good to have peace of mind. 
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Converter sheared off the two pump splines
07-08-2007, 11:13 AM
#10
Exactly - some of the C5 guys get away with built 4L60's, but you have to realize those are 3,100 - 3,200 pound cars and even with that we usually run small convertors (to minimize heat) and huge trans coolers. And it's still a crap shoot when you start leaning on them. If the C5 could fit a T-400 or 6L80 as easily as an F-body I'd have one in a heart beat.
07-09-2007, 01:20 PM
#14
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If you're getting 60's for free, just keep doing that until you get tired of pulling em out. You know the 80 is the way to go though. Hell, you may not even have to have it built, just get a converter and shift kit.
07-09-2007, 05:46 PM
#15
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we had a guy here run a 9.4 @ 144 with his 60 e, and i believe he got about 200 or so passes cutting 1.3 60 ft's. his car was around 3500 too. they can be built to take the power they're just not as durable as t400 or t 350