Re: Bore vs stroke

BBFTorino February 3rd 2016, 1:02 am

jason wrote:Great info guys! Thanks! I'm planning on a premium block, Bryant crank,Oliver rods. Not sure on the heads compression or even what cubic inch to make it. I would like to make around 2,000 hp.

With good parts, you can make 2000 at 460 inches!!

chappy89 February 8th 2016, 5:25 pm

I have a 4.5 stroke, 4.600 bore. 598". I have no problems running over 9000 rpm at 30+ #'s of boost, with twin 88's. My valve train took some time to get right, but now it's all good.

Chappy

JR Performance Motorsport February 14th 2016, 5:42 pm

I dont mean to highjack the thread, but I am getting ready to build a new engine for my '91 F350. I am thinking of using a Turbo and going small bore long stroke. Now this is a every day truck. It sees alot of High Way use. I want the duel milage to be close to or around 20mpg. My cruise rpm is around 2K. It needs to make is power there or it would be a waste of effort and money. For eveyday use what would be max compression ratio, also what size turbo should be used.?

garys gt February 16th 2016, 11:43 am

JR Performance Motorsport wrote:I dont mean to highjack the thread, but I am getting ready to build a new engine for my '91 F350. I am thinking of using a Turbo and going small bore long stroke. Now this is a every day truck. It sees alot of High Way use. I want the duel milage to be close to or around 20mpg. My cruise rpm is around 2K. It needs to make is power there or it would be a waste of effort and money. For eveyday use what would be max compression ratio, also what size turbo should be used.?

making a gas engine operating like a diesel. Like to see how that turns out.

JR Performance Motorsport February 16th 2016, 5:01 pm

garys gt wrote:
JR Performance Motorsport wrote:I dont mean to highjack the thread, but I am getting ready to build a new engine for my '91 F350. I am thinking of using a Turbo and going small bore long stroke. Now this is a every day truck. It sees alot of High Way use. I want the fuel milage to be close to or around 20mpg. My cruise rpm is around 2K. It needs to make is power there or it would be a waste of effort and money. For eveyday use what would be max compression ratio, also what size turbo should be used.?
making a gas engine operating like a diesel. Like to see how that turns out.

The funny thing is it has been for a very long time, it runs @1900 around 70mph. That poor old dog has a lil over a million miles on it now. It just needs more power and efficiancy, well thats what i want.

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