B3.3T Jeep YJ
Guess I should have looked at the AX15 a little closer...I assumed it had an OD of .73 like the NV3550 that replaced it. 95Z28A4, you are correct that the overdrive and axle ratios will effect my choice. The axles in my BII won't have as high a ratio as the jeeps (3.08). My axles will come from an early explorer (a bolt in upgrade) which only went as high as 3.27 or 3.55's. I am hoping to fit 31's under the truck as well. IIRC the NV3500 and NV3550 are about the same weight so it will come down to flywheel and adapter weight.
Guess I should have looked at the AX15 a little closer...I assumed it had an OD of .73 like the NV3550 that replaced it. 95Z28A4, you are correct that the overdrive and axle ratios will effect my choice. The axles in my BII won't have as high a ratio as the jeeps (3.08). My axles will come from an early explorer (a bolt in upgrade) which only went as high as 3.27 or 3.55's. I am hoping to fit 31's under the truck as well. IIRC the NV3500 and NV3550 are about the same weight so it will come down to flywheel and adapter weight.
The 8.8" Ford Explorer axle can be geared to 3.08. Before making a gear selection, you may want to consider axle ratios available for a SFA conversion.
At work, I'm presently involved in a PHA (process hazards analysis) for an ethylene oxide operating unit. This PHA along with my rental property is taking a large portion of my time.
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My project is going kind of slow, but i am still working at it. I purchased a advance adapters ax15 to chevy small block adapter with the flywheel, clutch, pressure plate, throw out bearing, slave cylinder, clutch fork and bolts off of ebay. I also have the motor mounts ordered and they are supposed to be here this week. I think I am going to run the Terminator transmission in my jeep. I have not puchased it yet. I am also thinking about cutting down suburban axles for the jeep.
http://www.flickr.com/photos/2555153...33138/sizes/l/
http://www.flickr.com/photos/2555153...02975/sizes/l/
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TDIWyse, you mentioned earlier that you had to raise the engine mounting by 1 inch over stock and add a 1 inch shackle lift to clear the suspension below.
I also looked at your flickr pics for the hood cutouts to get it to close. It looks like what hits is the top of the fuel filter (or whatever that big canister up high in the front of the block is) and the top of the Turbo and plumbing.
If I do my project, my wife doesn't want me to cut into the hood. The caveat is that the Jeep currently has a 4 inch shackle lift. Thoughts/opinions?
I also looked at your flickr pics for the hood cutouts to get it to close. It looks like what hits is the top of the fuel filter (or whatever that big canister up high in the front of the block is) and the top of the Turbo and plumbing.
If I do my project, my wife doesn't want me to cut into the hood. The caveat is that the Jeep currently has a 4 inch shackle lift. Thoughts/opinions?
I'd recommend keeping your wife happy. Happy wife, happy life.
Think I had 1 inch longer shackles which gave ~0.5" of extra lift. And I also originally had front leaf spring helpers. Along with longer bump stops to keep the pumpkin from hitting the oil pan. I've still got the longer shackles on the rear but put in a set of 1.5" lift front springs and returned to the standard shackles and no longer use the front leaf spring helpers. This combo kept the front height almost exactly like it was and improved the ride quality a bit. Did this about 1.5 yrs ago I think. Don't know if I had mentioned this at the time or not.
I had to cut the hood for the filter and the crossover turbo pipe even before adding the intercooler. The fuel filter in the stock position was the highest point. I thought you get about 1/2 the length of shackles for lift. If you've got 4 inches of lift (are they 8 inch longer shackles?) then I think you could setup the engine without cutting anything. If your shackles are 4 inches longer than stock I think you only get ~2 inches of extra lift. Even at this point you might be close to getting by without cutting anything. I think some of the others have repositioned the fuel filter so it's not sticking up so high which would also help.
Think I had 1 inch longer shackles which gave ~0.5" of extra lift. And I also originally had front leaf spring helpers. Along with longer bump stops to keep the pumpkin from hitting the oil pan. I've still got the longer shackles on the rear but put in a set of 1.5" lift front springs and returned to the standard shackles and no longer use the front leaf spring helpers. This combo kept the front height almost exactly like it was and improved the ride quality a bit. Did this about 1.5 yrs ago I think. Don't know if I had mentioned this at the time or not.
I had to cut the hood for the filter and the crossover turbo pipe even before adding the intercooler. The fuel filter in the stock position was the highest point. I thought you get about 1/2 the length of shackles for lift. If you've got 4 inches of lift (are they 8 inch longer shackles?) then I think you could setup the engine without cutting anything. If your shackles are 4 inches longer than stock I think you only get ~2 inches of extra lift. Even at this point you might be close to getting by without cutting anything. I think some of the others have repositioned the fuel filter so it's not sticking up so high which would also help.
TDIWyse, you mentioned earlier that you had to raise the engine mounting by 1 inch over stock and add a 1 inch shackle lift to clear the suspension below.
I also looked at your flickr pics for the hood cutouts to get it to close. It looks like what hits is the top of the fuel filter (or whatever that big canister up high in the front of the block is) and the top of the Turbo and plumbing.
If I do my project, my wife doesn't want me to cut into the hood. The caveat is that the Jeep currently has a 4 inch shackle lift. Thoughts/opinions?
I also looked at your flickr pics for the hood cutouts to get it to close. It looks like what hits is the top of the fuel filter (or whatever that big canister up high in the front of the block is) and the top of the Turbo and plumbing.
If I do my project, my wife doesn't want me to cut into the hood. The caveat is that the Jeep currently has a 4 inch shackle lift. Thoughts/opinions?
I had to cut the hood for the filter and the crossover turbo pipe even before adding the intercooler. The fuel filter in the stock position was the highest point. I thought you get about 1/2 the length of shackles for lift. I think some of the others have repositioned the fuel filter so it's not sticking up so high which would also help.
Lowering the fuel filter should not be a problem. My QSB3.3T came from Cummins with the fuel filter bolted directly to the intake and set back from the front of the engine. Check the flickr link in my signature for pics. I've also attached a link to Mooktank's blog. Mooktank installed a 85 HP B3.3T in a 2 door 1995 Explorer. The filter on his engine is in the lowered position.
http://mooktank.com/?cat=4
If you use a front mount intercooler and reconfigure the intake tubing accordingly, you can probably raise the engine for axle clearance without cutting the hood. The link below is to a cummins 4BT converted TJ. I think this guy used an intercooler from a 4BT Chevy P30 van.
http://web.mac.com/my96z28ss/Jeep/Welcome.html
TDI,
That is correct, the amount of lift is approximately equal to 1/2 of the increased shackle length.
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