Well I have decided to upgrade from the E to the DE. I have turbo240 rods, arias pistons, arp mains ect... in my E and I know they can be used in the DE. The only question I have is are the E and DE crank the same? Are the snout's the same length? I know the DE oil pump is driven right off the crank snout so I am not sure if they are the same or not.
The reason I ask is because I have already had all my internals balanced to my E crank specs...
One more quick Q. the arias pistons are 10.6:1 comp for the DE.. do you guys think I could get away with that high of compression? I was thinking of running alcohol injection to help prevent and det. /ping.
DE crank same as E?
Re: (WDRacing)
ehhh i just get 9:1 comp pistons.. its easier. any info on the cranks?
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WDRacing
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Re: (wild_maxx)
I asked around, I think they're the same. Dude build the high compression boost motor. It will be different atleast...c-mon, don't be a whusspuppy
Re: (WDRacing)
haha I am shooting for around 450 hp this time around...so i'm gonna make is as safe as possible.
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daconkiftador
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Re: (WDRacing)
LOL ooooh, just playing I cant say anything cause my car doesnt even run right now, plus I spun my #3 rod bearing this last august and shawns a cool guy anways.. /end useless rantWDRacing wrote:Looks like I'm changing your user name to WhussPuppyExtreme...LOL.
Re: (daconkiftador)
hey you have a spare DE motor you wan't to sell me?
Cranks are the same. But came in three variations, IIRC. The only difference is in bearing clearance, and only when using Nissan bearings. If you have it turned, this goes out the window.
Funny story, in 1991 when Nissan decided to make the 240 w/ DOHC, they kind of hacked it together. This is apparent if you spent any time under the timing cover of either motor. On the single cam they use one gear to drive the cam, on the DOHC, that gear became a cam chain idler, which runs a second chain. Basically, with the exception of the pistons and the oil squirters, the DE is just an E with a different head.
Funny story, in 1991 when Nissan decided to make the 240 w/ DOHC, they kind of hacked it together. This is apparent if you spent any time under the timing cover of either motor. On the single cam they use one gear to drive the cam, on the DOHC, that gear became a cam chain idler, which runs a second chain. Basically, with the exception of the pistons and the oil squirters, the DE is just an E with a different head.
Re: (Chezedik)
the DE oil pump is driven off the crank snout correct? and its built into the front timing cover?
I will be fine running my balanced crank from my E motor in the DE block with same rods/pistons and new rings/bearings?
I am switching over to the DE because of the aftermarket support vs. the E, the annoying *** E lifters, only one cam and the limited amount of parts for it... just seems like a smart idea huh...
I will be fine running my balanced crank from my E motor in the DE block with same rods/pistons and new rings/bearings?
I am switching over to the DE because of the aftermarket support vs. the E, the annoying *** E lifters, only one cam and the limited amount of parts for it... just seems like a smart idea huh...
Yes, but they used an adapter on the DE that slides off of the crank and runs the oil pump.
Yes, you will be fine switching cranks over, along with most bottom end components.
Also, as far as support, I think support is fairly equal for either motor. The difference is that the SOHC will have slightly lower VE. The upside is that there are a ton of cams available, and since you are only buying one, they are cheaper. Plus the 89 had very low compression. I would like an SOHC to have for an NA project, but yes, for turbo I would like to have DOHC.
Yes, you will be fine switching cranks over, along with most bottom end components.
Also, as far as support, I think support is fairly equal for either motor. The difference is that the SOHC will have slightly lower VE. The upside is that there are a ton of cams available, and since you are only buying one, they are cheaper. Plus the 89 had very low compression. I would like an SOHC to have for an NA project, but yes, for turbo I would like to have DOHC.
Re: (Chezedik)
ahh i just found out that the DE crank is a bit longer than the E crank because of the DE's oil pump system. I may just be able to find a complete DE motor and swap my internals over to it and have it all rebalanced together.
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12valveturbo
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Re: (12valveturbo)
hehe yeah I was aware of that. I bought a set of 10.6:1 arias pistons for the DE and put them into my E motor. They worked great but the compression ratio will be too high for boosting in a DE motor. They will be up for sale soon if anyone is interested.