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Why not just get the whole VE? LS/VTEC setups are really unreliable. Tend to blow up after a few months.
Also isnt VE block stronger than the DE? The Honda guys did this for the small increase in displacement. Both block have the same displacement of 1998cc why would you want the DE block in that case?
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Well since its still kinda tought to get the VE over here period, I dont think its gonna be easier to get just the head. Maybe if we were overseas it would be a lot easier and might be cheaper too
The VE block is quite different from the DE. The VE has oil squirters for the pistons, a larger volume oil pump, a lighter crank and different pistons to name a few. It makes little to no sense to try and bolt a VE head to a DE block.
Originally posted by Shoes59 The VE has oil squirters for the pistons,
Those oil squirters help cool the pistons, which helps avoid detonation, which then allows a slightly higher compression ratio to be used safely. The SR20VE is an 11:1 engine.
If you wanted to bolt a VE head on a DE block the best block to get is the 2000-01 roller rocker motor. Everything is almost the same between these 2 motors, the only diffrence will be pistons, no oil squirters and maybe lower volume oil pump. If you use the 2000-01 DE motor the compression with these pistons will be 10.8 to 1 which is very close to the 11 to 1 of the VE motor, no real hp diffrence there. They both have the lighter 4 counter weight crank. The only thing left to do is to drill the block for the oil squirters which I would recomend but not the end of the earth problem. Also you will need to dril the block for the oil going to the selenoids to activate the cams. Thats it not to hard but for the regular Joe you will be in for some trouble.
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I have the 2001 SR20 and have been saving up for the VE but getting nowhere... sadly... How much would just swapping out the heads cost me? And how much gains are we looking at?
youre gonna have as much of a hard time getting just the head as getting the whole engine. Its not like these engines/blocks are to be had in the States. Most importors arent gonna send you a head, what are they gonna do with the blocks? And the odds of you finding a guy who put a hole through his block and being able to send you it, are very rare.
Would there be really big gain on putting a ve head on a de. Also couldnt you put a 16ve head on a 20de wouldnt that give a little more compression inturn more peak hp. Also can the crank, rods, pistons hold up to those high rpms that the ve head can with stand. Or is your redline going to still going to be the same??
the 16ve head is the same cc as the 20ve head, the cc on the 16ve n1 is smaller. but the advertised compression of the n1 doesnt seem to be correct when looking at the piston and head cc. rpms kills engines. no matter what. the more you rev it the faster it wears out. its a fact that it actually wears more be cause it experiences more cycles per unit time. a de botom end will hold the powerbut keep the revs to 7800 max is my recommedation. having blown up one ve already bouncing off of an 8200 redline.
i dont recommend bouncing on the redlind even at 7800. these ves act diferently. its not a de so be carefull.
Originally posted by bigtom the powerbut keep the revs to 7800 max is my recommedation. having blown up one ve already bouncing off of an 8200 redline.
i dont recommend bouncing on the redlind even at 7800. these ves act diferently. its not a de so be carefull.
So how did JWT set the redline to 8200 rpm when they tell everyone else they can only do 8000 rpm?
Originally posted by bigtom the 16ve head is the same cc as the 20ve head, the cc on the 16ve n1 is smaller. but the advertised compression of the n1 doesnt seem to be correct when looking at the piston and head cc. rpms kills engines. no matter what. the more you rev it the faster it wears out. its a fact that it actually wears more be cause it experiences more cycles per unit time. a de botom end will hold the powerbut keep the revs to 7800 max is my recommedation. having blown up one ve already bouncing off of an 8200 redline.
i dont recommend bouncing on the redlind even at 7800. these ves act diferently. its not a de so be carefull.
COOL Thanks for the help. I wouldnt have expected those heads to be the same cc. Is there any other diffrence in the head shuch as the ports, springs, valves, cams, or are they pretty much the same??
the redline is 8000. i had to get a special ecu core to allow over 8000 for testing to find the limit of the vvl. no im not going to tell which one it is and jwt wont either.
i think the valve weights might be different in the sr16
Originally posted by bigtom no im not going to tell which one it is and jwt wont either.
It wouldn't matter if you did. JWT just doesn't want to program anything over 8000 rpm. I also have the 8000 rpm cutoff and I am sure that will be just fine for the VE with sr16 cams. I will probably shift at 7800 (after I look at my dyno sheet) and that way I have a 200 rpm safety before hitting the rev limit. I hear (and I'm no expert) that the DE can rev past 8000 but that one bounce off the revlimit will break things. In other words it not the revs that hurt the engine but the bouncing off the rpm limit.
