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I've spent hours on here reading through the VE swap threads and I think I've got it all straight in my head. However I thought I outline my plans here to confirm things.
My plans are to drop a '99 SR20VE into a '99 UK spec P11 GT and I'm intending to do it in two stages.
Stage 1 will see theroblok spacers, stage 3 clutch, lightweight flywheel & pullys, and SSAC header fitted to the VE. Then replace the VE injectors, distributor and MAF with DE units. The engine will then be dropped the car and hooked up to a standard DE ECU. Basisally running the VE in DE spec on the low cams only.
Stage 2 is to fit the greedy switches, replace the DE injectors with the VE one and have the ECU played with to return it to full VE spec.
Before I dive head long into this, have I missed anything or got anything wrong...?
as far as i know you should just leave the ve injectors in if you are running a de ecu, otherwise you are gonna run lean
__________________ KL0 P11 Sport
VE, JWT Pop Charger, Carbing: Tri-FSTB RSTB LCA Bar, SS Autochrome Header, Greddy Evo, Rear sway bar
------------ Surround Sound My VE thread
YES - I presume you have the VE intake stuff, leave the VE injectors in there - it gets greedy on the high cams and the DE ecu won't know it. Hate to see you hole a piston. If you can over there, get the MSD 8969 to switch the cams, it's an easy job, stock VE happy enough with one switch. Dre had me do mine at 4600 but optimum varies depending on how you set up.
__________________
'93 B13, etc.
If you don't have the patience
to do it right the first time,
how is it you have the time to
do it over and over again?
Hey, you guys telling him to use a DE ECU (programmed for 259 injectors) with VE (333) injectors, please explain your thinking behind this. Unless I'm missing something, you're both wrong.
Hey, you guys telling him to use a DE ECU (programmed for 259 injectors) with VE (333) injectors, please explain your thinking behind this. Unless I'm missing something, you're both wrong.
C
yes you are missing something.... your a turbo guy right? im sure youve seen plenty of ppl running 370cc injectors with a de ecu untilt hey get it programmed... same deal here.. he will just run a bit rich, better than running lean
Experience speaks louder than theory - so I'll go back to the sidelines. I'm just a big fan of matching the maf and injector to the ECU. From what I can determine the stock injectors will support 180hp at about 90% duty cycle. As long as he's not beating the snot out of it for long periods, it'll be fine.
Experience speaks louder than theory - so I'll go back to the sidelines. I'm just a big fan of matching the maf and injector to the ECU. From what I can determine the stock injectors will support 180hp at about 90% duty cycle. As long as he's not beating the snot out of it for long periods, it'll be fine.
C
I'm with chris, match the maf and injectors to the ecu your running.
Experience speaks louder than theory - so I'll go back to the sidelines. I'm just a big fan of matching the maf and injector to the ECU. From what I can determine the stock injectors will support 180hp at about 90% duty cycle. As long as he's not beating the snot out of it for long periods, it'll be fine.
Experience speaks louder than theory - so I'll go back to the sidelines. I'm just a big fan of matching the maf and injector to the ECU. From what I can determine the stock injectors will support 180hp at about 90% duty cycle. As long as he's not beating the snot out of it for long periods, it'll be fine.
C
i agree with you, but he said he will be running the low cam only until he gets the ecu reprogrammed... edit (actually since he said he is using the low cam only then he should be able to run the de injectors)
ive done this until i have gotten my jwt when i was turbo.. gas milage sucked but the car ran and idled ok
Last edited by civicdragon : 10-25-2006 at 01:45 PM.
The 333's are going to be overkill especially if he's just going to be on the low cam only. If he has other problems like a vaccum leak or idle circuit problems, the rich running from the extra 30% fuel isn't going make troubleshooting any easier.
My advice for a trouble free install is to just install the proper ECU at the start.
Chris, you're right, but it sounded like he was not gonna ante up for an ECU for the moment, and I'd rather see him foul plugs than hole pistons :-) BUT - you've got a point - he did say he wasnt' gonna ante up for a switch either, so maybe he'd be okay with the small holes. I'd sure wanna keep an eye on the plugs though - bright white is not cool (as it were).
Jer
I don't see how he's going to put a hole in his pistons if he's running the injectors made for that ecu. I'm also with Chriscar on this. If he's just running on the small side of the cams, the car wont put down more than 140 at the wheels, I don't see why the DE injectors won't be adequate.
__________________ Serban - EEN President/Founding Father
'93 NX2000: SR20VE Parting out
'95 G20t: SR20DET
I don't see how he's going to put a hole in his pistons if he's running the injectors made for that ecu. I'm also with Chriscar on this. If he's just running on the small side of the cams, the car wont put down more than 140 at the wheels, I don't see why the DE injectors won't be adequate.
I think he was more worried about then running rich, i dont know how running rich will put a hole in the piston either though.
No, everyone is saying that if he runs the 259cc injectors with the DE ecu, he'll put a hole in the piston (running too lean). But I don't see how the car will run too lean if you have the right injectors in there.
No, everyone is saying that if he runs the 259cc injectors with the DE ecu, he'll put a hole in the piston (running too lean). But I don't see how the car will run too lean if you have the right injectors in there.
because that ecu is mapped for a motor that has about 50 less hp
