Do i need to upgrade the converter?
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Teching In
Joined: Apr 2008
Posts: 34
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From: Utah
Do i need to upgrade the converter? long story short.... I was going to start at the rear and build my car working my way forward.. however a little incident with rod knock has now forced me to do the build the other way. im leaving my top end stock for now. but doing a 383 stroker with an MS4 cam and valvebody to match...
I have the stock 4l60e and the stock drive shaft and rear end. (before I get a lot of flack for that, I don't inherently drive my car like I stole it. in the two years ive owned it ive only lit the tires up once and that was the day I was getting new ones. so driving like ive got something to prove isn't an issue)
so im just wondering if I will need to throw in a new converter or will my stock one last me through the winter if I just drive it like a normal car with the occasional rolling romp to get a thrill of it all.. I plan on getting a new rear end and then transmission in that order next spring and summer. so should I just wait and do it then and maybe take that extra money and thow it towards a fast intake and TB?
any thoughts, opinions, or advice would be appreciated thanks guys!
I have the stock 4l60e and the stock drive shaft and rear end. (before I get a lot of flack for that, I don't inherently drive my car like I stole it. in the two years ive owned it ive only lit the tires up once and that was the day I was getting new ones. so driving like ive got something to prove isn't an issue)
so im just wondering if I will need to throw in a new converter or will my stock one last me through the winter if I just drive it like a normal car with the occasional rolling romp to get a thrill of it all.. I plan on getting a new rear end and then transmission in that order next spring and summer. so should I just wait and do it then and maybe take that extra money and thow it towards a fast intake and TB?
any thoughts, opinions, or advice would be appreciated thanks guys!
Normally converters arent what goes bad in the 4l60. Its usually the sun gear/cage teeth get sheared off or the 3/4 clutches get burned. A 383 and a MS4 cam arent gonna work with the stock converter and can easily power through stock trans clutches leaving you once again broken down and in the rain. I wouldnt put a new converter in an old stock trans with the power your planing on making either. Why not just pick up a stock shortblock for now and continue the build plans you had previously?
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Joined: Aug 2010
Posts: 7,323
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From: Ann Arbor, MI
Agreed that the MS4 cam and stock converter are a bad combo, but it won't hurt the converter.
The MS4 cam is very aggressive for even a 383 stroker. IMHO I would suggest at least a 113 LSA (14.5* overlap), perhaps a 115 LSA (12.5* overlap), or you will have a lot of idle tuning challenges. Just my opinion.
The MS4 cam is very aggressive for even a 383 stroker. IMHO I would suggest at least a 113 LSA (14.5* overlap), perhaps a 115 LSA (12.5* overlap), or you will have a lot of idle tuning challenges. Just my opinion.
stock stall and aftermarket cam is never optimal. Power band moves up with cam and stock stall doesn't get into powerband well as it is. A cam without a stall is often called a turd stick...
Building from the rear forward is great but with an a4 you can get away with a lot of mods without hurting the 10 bolt especially if you aren't thrashing it all the time like your saying , if you were camming an m6 car and planning to hit the track on sticky tires upgrading the rear right away would be an excellent idea
Building from the rear forward is great but with an a4 you can get away with a lot of mods without hurting the 10 bolt especially if you aren't thrashing it all the time like your saying , if you were camming an m6 car and planning to hit the track on sticky tires upgrading the rear right away would be an excellent idea
