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hahahhahahaha.... I started to post on this and the phone rang when I got back and finished Jose and Jarrid had posted total oposite opinions to each other though Jose and I share the same view point.
Ok here is my opinion........ there are two things you can do to spoil the 2.8 conversion.... one is not enough gear the other is not enough cam. I have all the cam you can put in the thing and a 4.22 gear. I get 25 plus MPG on the highway and the car is very snappy to say the least. as my one buddy says "That thing will eat" even with a stock cam the 2.8 is going to be much happier with the 4.22 gear. Put a rev limiter on it and let the little dog eat.
What do you think about a 3.909 MGB/14". Will that extra inch help much?
Ok. I will want to use either the 3.89, 4.11 or the 4.22. I bought my 3.70 to go behind a non syncro Alpine overdrive. It works nicely there. I will be moving this setup to one of my other projects.
My question now is where do I get one of these ratios for my V6. I have the chunk from the one I removed plus one in another SV plus two in SIVs. Will one of these fit and how can I tell?
I agree (now) with the 4.10/11 alxe ratio, as mine has a 3.32 and everything you have said is correct. If I'm not seriously "motivatin'" when I go into 5th the rpm drops and I go back into 4th. I'm considering regearing my current car which has the Dana 44. Question: If I do that, I know I'll need the larger carrier but can I still use the same locker?
OK. Let's look at the other end. My math tells me that with the 4.10/11, first gear becomes nearly worthless. Jim and Jose-do you do second gear starts normally or can you still use first for something besides pulling stumps?
RootesRacer-When you say the cases are different, do you mean the pumpkin itself?
OK, OK, I concede!
I drove for years in a 77 merc capri with 2.8, 2bbl 4 speed and the stock 3.09 final drive ratio, and it worked pretty good in a 2700lb car, not to mention 27mpg.
Now would someone please send me that 3.70?