what stall do i need

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Nov 26, 2014 | 05:02 PM

billymgb1000

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Launching!

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From: harrisville R.I

what stall do i need

ok my car is a 1974 MGB I have a 4.8 with the gm hot cam and a turbo 350. the car only weighs 2200-2400 lbs ( depends on me and gas )lol anyways I have been driving her with no stall, since I did the cam swap I don't like it. so any help would be great. also I am running a carb no computer. I don't race her and it's a daily driver all spring and summer thanks guys and happy turkey day

Nov 26, 2014 | 05:12 PM

FirstYrLS1Z

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From: Euclid,Ohio

not familiar enough with MGB.
what's the front to rear weight ratio ?
rear wheel drive ? what's the ratio ?
open rearend or some kind of limited slip ?
what's the 'flash' rpm' on the current convertor that's in the turbo 350 ?

Nov 26, 2014 | 05:42 PM

mrvedit

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From: Ann Arbor, MI

With such a light car the "flash" rpm will likely be less than the advertised stall speed.
Also, explain what you don't like since the cam swap; I think I know, but want to be sure.

Nov 26, 2014 | 06:41 PM

billymgb1000

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Launching!

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From: harrisville R.I

ok guys sorry about the lack of info, the weight raito is roughly 60/40 60 to front, the mgb is a rear wheel drive 2 seater convertible , I put a ford 8 inch with 279's I had 390's with the dana( mgb stock rear ) it wound to high on the highway. what I don't like about it now is when she's stopped at a red light she is jumping the cam has a good lope I love how she sounds but not how it jumps. well my wife really hates it .I kind of like looking at her when she is bouncing ( if ya know what I mean) lol. help me out guys, thanks again. the other thing I noticed with this cam was I lost my low end pull. when she hits about 3000 rpm my wheels break loose

Last edited by billymgb1000; Nov 26, 2014 at 06:43 PM. Reason: forgot something

Nov 26, 2014 | 06:58 PM

FirstYrLS1Z

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From: Euclid,Ohio

because of the cam,in neutral,what rpm does the engine 'like' idling at ?
sounds like you're gonna need a 'loose' convertor to eliminate the red light jumping/bouncing.
too many put in too wild of a cam without/not realizing the consequences of a OEM or equilvalent tight convertor.

Nov 26, 2014 | 07:22 PM

billymgb1000

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Launching!

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From: harrisville R.I

in neutral she like about 800, and can you explain what loose converter means, thanks

Nov 26, 2014 | 07:34 PM

FirstYrLS1Z

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From: Euclid,Ohio

I should have added a part 2 to the question.
and what is the idle dragged down to in gear at a light ?

a loose convertor will allow the engine to idle where it wants to(for lack of a better description). unfortunately it will also seems loose(slipping) above idle too.

it's probably best to contact Yank,CircleD,and/or others to get their recommendations.

https://ls1tech.com/forums/automatic...questions.html