hello, i know it can be done but not sure a 100% how. anyone got tips on how to do the swap? wat to do with injectors? if i can even keep the ITB's? anything. thank you whoever you are lol :-D
i got this online
What all would be involved in swapping a VVL head onto a 54C block while retaining the ITB's?
1)The exhaust manifold would bolt right on.
2)The 54C head gasket could be retained if an external oil line where tapped and made for the VVL actuators.
3)The stock mapping could be used with a standalone solenoid actuator cause the MAF sensor would pickup the extra air flow at 4800rpm plus.
4)The VVL head would need to be machined for the larger 12mm head studs.
5)The stock pistons inside are deep dish and could handle the greater lift and duration of the VVL valves.
You have to enlarge the holes on the exhaust manifold as the ports on the mani will not aligh with the ones on the head.
you cannot use RNN14 inlet as the head flange is different and port shape is different.
You have to use VE HG.
yes you have to machine head for gtir head studs.
You have to use a standalone ecu to control the solenoids.
Be careful with lift as the valves on the ve head sit closer to pistons and will hit the pistons.
you can only use stock ve cams,unless you have valve pockets on your pistons
dowel pins are smaller on the ve head, would likely need to be machined out
What about the injectors? They are completely different also the fuel rail.Does nistune works for that head to activate vvl? Also the vvl cables to activate. David wats the VE HG stands for?
Shake and bake
VE headgasket. I'm building this exact swap right now. I'm using VET pistons.
Please let me,know how u doing with it. If u got fb or something that would be nice that way we can communicate
Shake and bake
No fb, pm on here is best way to get me probably. I havn't complete my build, so there are much better resources on the sr20 boards to tap in order to figure out what you need for this.
Everything mentioned so far has been correct.
ok so i talked to my buddy here in PR that have done the swap. no is more simpler than before... the simplest way is this i guess.
ull need an RPM activated switch to activate the vvl at certain RPM.
get bigger injectors to replace the stock VE ones. ull need to unplug the resistor box cause aparently this injector for the VE are high impedance not low like GTIR stock ones. still u need to cross the wires in a way to get them working, he said is really easy. unplug, cross then somehow and boom, no cutting etc.
and thats it bro. other than making the stud holes bigger and any other machine shop related stuff like the oil lines, thats it!
also good idea to get Z32 maf for more air, unless u going stand alone ecu watever and make it MAP instead of MAF. but hey i said the simplest of ways. im keeping my nistune :-D
Shake and bake
also a link on how to activate the VVL solenoid. just in case
http://www.sr20-forum.com/tunercode/51357-vvl-activation-via-tunercode-stock-de-ecu.html
Shake and bake
Lynx, what camshafts will you run ? n/a cams will need a huge turbo, like a GT30, to use the high rev zone (past 7000 rpm) or it will max out
My build is running and in the tuning stage now. I'm runnning 16ve cams straight up at the moment. Activating both lobes at 3500 rpm and the thing screams on 10psi (wastegaite for the moment).
My plan is to pick up some VET cams to dyno against, and also some 20v cams if I can.
Ok guys I'm reviving this thread. I ran into a problem when trying to install x-trail GT sr20vet 86.5mm pistons on stock gti-r
Gti-r connecting rods. Looks like it won't go fully in preventing them to go together.
Lynx, could you provide me more info on your build ?
The main difference between VET and GTiR rods is the fact that the boss for the piston pin is ground at the top to fit into the piston. I used a scale and did mine by hand to the same weight.
Funny thing is, the replacement part number for the 54C rods ARE the 8H6 rods. Even funnier is that the 8H6 rods look like they started as 54C castings and were grounds for clearance.
Here is a better pic.
Yeah that's what the guys on sr20forums they me to do so I sent them at a machine shop and came back grounded like this
haha I did mine with an angle grinder