Turbo 350 or 400 which one and why?
#1
Turbo 350 or 400 which one and why?
Sup guys need expertise from the pros I am looking to get rid of the 4L60 since it's definitely not holding up anymore and this one is number 4 or 5. I'm trying to decide between a 350 and 400. From what I've gathered the 350 is lighter and doesn't eat up as much power as the 400 but apparently it's weaker? Will a 350 hold on a 408 with a 300 shot reliably?
I do like driving my car on the street and usually put about 200 miles a week on it if not a little more but I don't mind losing the OD if the transmission is gonna hold. My car is 3560 with me in it and I've been using a 27" drag radial if that matters.
I had a 350 in my Z28 and didn't have an issue with it even on the gas but the car was about 500lbs lighter.
Any help, input, or opinions are welcome.
Carlos
I do like driving my car on the street and usually put about 200 miles a week on it if not a little more but I don't mind losing the OD if the transmission is gonna hold. My car is 3560 with me in it and I've been using a 27" drag radial if that matters.
I had a 350 in my Z28 and didn't have an issue with it even on the gas but the car was about 500lbs lighter.
Any help, input, or opinions are welcome.
Carlos
#3
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One of the biggest issue I have seen with a TH-350 that they tend to get cranky when running a Trans Brake. Seemingly something to be concerned about. Like said, do it once and in MOST situations a stock or even BEEFED up TH-400 will handle everything you could ever throw at it.
#6
My 350 has been great over the years. On the transbrake, off the footbrake, I think it has alot to do with who builds it. I've never had it rebuild, freshened up, nothing.
408 on a 300 shot, looking at what? 900 crank horse. I'd say you'd be pushing the limit of a 350. Go with the 400.
408 on a 300 shot, looking at what? 900 crank horse. I'd say you'd be pushing the limit of a 350. Go with the 400.
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One of the biggest issue I have seen with a TH-350 that they tend to get cranky when running a Trans Brake. Seemingly something to be concerned about. Like said, do it once and in MOST situations a stock or even BEEFED up TH-400 will handle everything you could ever throw at it.
Derek
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I'm running a th-400 and my acr is similar set up to yours and it has been taking all that I can throw at it.THough im only hitting with 150 shot.Th-400 didnt eat as much hp as I thought it would.Also make sure you a scatter shield blanket for the trans and I recommened reverse manual vale body style trans
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ive ran a th-350 in my bros car for years on the brake and never had any issues.
408 on 300 worth of n2o id deff for the th-400 . it will last a long time befor you have to do anythign to it
408 on 300 worth of n2o id deff for the th-400 . it will last a long time befor you have to do anythign to it