Ok, I know the sr20/16ve heads can be swapped onto an sr20de block to give it vvl...but here is a question for one of you more knowledgeable people: Can the sr20/16ve head be installed on a sr20det Gtir block? If so, would it be the same process as used to put a ve head on a sr20de? Lastly, would I run into any problems(asside from compression ratio), if I ran 15lbs of boost on the ve head/gtir block combo(gtir has been taking 15psi just fine fyi - has 550cc injectors, z32 maf, jwt ecu, apexi digital boost controller). If I can do this...this might make for an interesting project. I just bought another 200sx se-r with the gtir engine, jwt ecu, z32 maf, 550cc injectors, custom turbo-back exhaust, apex gauges, apex digital boost controller, jgy 8.5lb flywheel, etc... for $1500 I couldn't turn down that deal...and figure I would like to do something unique with this one. Thanks for the time!
the only problem i see with running a Ve head on a turbo DE is vavle float. I dont believe it woudl fit with a GTIR motor due to the ITB, but i would recommend goin on sr20forum.com to ask that. They are geared twos SR's.
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Originally Posted by hendrix
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Thanks for all of the input, I will continue to look into this... I can't really see a reason why valve float would be a problem. If you were to take a normal det head to 8-9k, I could see that...but everything valvetrain that would float is from the ve...and on top of that I would probably invest in the jwt ve springs to be safe. As for the ITB's, im pretty sure I could make it work...or at least give it one heck of an effort ;-) I guess the next step will be to buy a ve head gasket, as well as a new gtir head gasket...and see how they look. If that pans out to be do-able then I need to check other small things such as finding a set of pistons with low enough compression to maintain less than 8.5:1 with the ve head on there. Anyone know a good place to get a complete sr20ve head, and maybe some sr16ve cams? Thanks again!
On a sad side note, this project is on hold untill I find another gtir swap, and a ton of other stuff...the car got stripped in a parking lot this last weekend. It is pretty much a shell now...someone broke out the side window, and stole everything! The whole engine/trans, jwt ecu, apex boost controller, b&m short shifter, z32 maf, fmic setup...pretty much if it was aftermarket, they stole it - even the coolant overflow tank on the fender! So for the time being I am just going to use spair parts to get it going again and start from scratch, luckily I have almost everything to put in a jdm sr20de I have sitting here on an engine stand. I hate some people!
Besides the ITB assembly from the GTi-R will not bolt on to the VE head, there are also some oil passage issues. The better idea would be to use the GTi-R internals on the VET block and head. Not sure why you'd need to do this as obviously the GTi-R is already capable of making sick HP.
Besides the ITB assembly from the GTi-R will not bolt on to the VE head, there are also some oil passage issues. The better idea would be to use the GTi-R internals on the VET block and head. Not sure why you'd need to do this as obviously the GTi-R is already capable of making sick HP.
First off, in order to mount the ITB's to the ve head I was planning on making an adapter plate and just port matching it on both sides(all of it is theoretical untill I actually obtain the ve head to see how far off the ports are). I know about the need to run an external oil line, and plug the one on the face of the head - no big deal... As for why do I "need" to do this? Simple...no one has, and I was thinking it would be nice to have a (the first?) gtir/ve engine. But either way...I am S.O.L. on this plan all together now (See about 4 posts up ----^)... I no longer have a gtir AT ALL, because I guess someone else thought they need it more than I do, I just got done installing the jdm sr20de today. I can't stand how slow the car is with just the n/a sr20... Anyone know a good place to pick up a ve head? Either sr16, or sr20 will be fine! Anyone know if soko or anyone like that is selling just the complete heads?
It won't work unless you want to do a lot of customizing and know a really good machine shop. The reason why people don't use gtir heads with any other sr20's is mostly due to the head studs. In the gtir block the head studs are bigger and threaded differently. So somehow you would have to find a way to retap everything and get some custom head studs.
I did some research awhile back to try and figure out if i could put a gtir head on my de block and this is what i found out. all the sr20's run the same head studs with the exception of the gtir block running bigger ones.
I think there is someone on sr20 forum that found a way to use a de head with a gtir bottom end which would almost be the same thing. I think he drilled the de head to match the bigger head studs of the gtir.
If you can figure out a way to do that man i will give you mad props.
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It won't work unless you want to do a lot of customizing and know a really good machine shop. The reason why people don't use gtir heads with any other sr20's is mostly due to the head studs. In the gtir block the head studs are bigger and threaded differently. So somehow you would have to find a way to retap everything and get some custom head studs.
I did some research awhile back to try and figure out if i could put a gtir head on my de block and this is what i found out. all the sr20's run the same head studs with the exception of the gtir block running bigger ones.
I think there is someone on sr20 forum that found a way to use a de head with a gtir bottom end which would almost be the same thing. I think he drilled the de head to match the bigger head studs of the gtir.
If you can figure out a way to do that man i will give you mad props.
Nice to know, I was thinking the head studs were bigger(I knew the main cap bolts, and flywheel bolts were bigger)...I am sure I could do the conversion - only problem is I don't have a gtir anymore only a lame stock jdm sr20de.
I couldn't turn down that deal...and figure I would like to do something unique with this one. Thanks for the time!
only a lame stock jdm sr20de.
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