Which trans for 500rwhp?
08-09-2010, 11:02 PM
#21
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im going to be doing it on my truck shortly. just placed the order for a triple disc circle d converter so im committed. got an 07 4l80e out of a van. there is one memeber on here who i know has one in and running. what he did was use the tcm for a new van and it all worked out. talking with justin at blackbear he said we will get it to work.
08-18-2010, 06:45 AM
#22
Looking at a couple of options for a trans. I currently have a stock 4l60e. I will be adding performance goodies very soon and I will need something to hold up. Could I get by with upgrading my stock trans. If I go the 80e route, should I go with the 6L80e or 4L80e? Also see a member here selling a FLT 4l65e level 7. Also how much extra would it cost to go the 6l80e or 4L80e route.
For you Louisiana guys, if I do the 4L60e upgrade, who do you recommend in my area (Baton Rouge). Two names have been mentioned and they were Powertrain Specialties and Morris Transmission. Have any of you had dealings with these guys.
For you Louisiana guys, if I do the 4L60e upgrade, who do you recommend in my area (Baton Rouge). Two names have been mentioned and they were Powertrain Specialties and Morris Transmission. Have any of you had dealings with these guys.
09-01-2010, 06:35 PM
#23
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08 L76 with the 4L70E tranny, Built it with 13,000 miles on the truck before the TVS1900. Truck is Around 475RWHP tranny lasted 6mo and welded the HD Sprag, build 2 lasted one year and 
sprag again. every mod that can be done has and TQ management is being used.
to the point build the 4L80e
sprag again. every mod that can be done has and TQ management is being used. to the point build the 4L80e
09-01-2010, 10:07 PM
#25
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these guys are dead on.. the 4l80e is stronger than the 6l80e. its more readily available, relatively cheap and theres more of an aftermarket world. and they are pretty tough even in stock form. the only down side is that they have a 2.5 first gear. so you have to compensate for that with an aggressive rear gear. I am very satisfied with my 4l80e. picked it up for 750 bucks threw a shift kit in and been beating on it for close to 2000 miles now. the conversion wasn't very hard at all either.
also for 550 hp i wouldnt waste my time on a 80e. plenty of ppl run 60s making 500-600. its when you see over 700 is when a 80 is an option
also there is a FLT level 7 60 out there behind a 9 sec truck making up wards of 1k rwhp
09-02-2010, 08:48 AM
#26
interesting that you say a 4l80e is stronger then the 6l80 when the a6 has much beefier parts inside it and quite a few GM reps on other sites that have opend one up spoked on how much stronger the 6l80 is. Its just up to the tuner if the trans fails or not.
also for 550 hp i wouldnt waste my time on a 80e. plenty of ppl run 60s making 500-600. its when you see over 700 is when a 80 is an option
also there is a FLT level 7 60 out there behind a 9 sec truck making up wards of 1k rwhp
also for 550 hp i wouldnt waste my time on a 80e. plenty of ppl run 60s making 500-600. its when you see over 700 is when a 80 is an option
also there is a FLT level 7 60 out there behind a 9 sec truck making up wards of 1k rwhp
Last edited by quicksilverado; 09-02-2010 at 08:56 AM.
09-02-2010, 09:06 AM
#27
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For a daily driver a 60e will have a much shorter life span than an 80e at 500+ rwhp. Esp. in a heavy truck. Will it last? Yes, but for how long. If you do wide open throttle blast and the 60 down shifts from 4th to 2nd, the tranny just can't take the abuse. The surface area of the cluthes on an 80e are about 3 times that of an 80e. The gears and other components of an 80e are much larger ie stronger than the smaller counterparts of a 60e. For the price a level 7 FLT or a high dollar RPM, you can swap in a stock 80e and forget about it.
09-02-2010, 06:16 PM
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if you can work on your truck and are capable of doing fab work i dont get how it would be cheaper to run a top level 4l60 for the long run behind a high hp truck. im with the others. got 1600 in my setup so far with an 07 trans and triple disc converter. cross member maybe 50 bucks in material if that. drive shaft may be the only other expensive thing but that would be killing 2 birds with one stone. better shaft and also shorter