hey so what r the bad sides to using single cam injectors in a gsr, untuned using a gsr ecu. i know it will b lean cuz they're about 30 cc smaller, my spark plugs are gettting white pretty fast. willl it hurt a motor that's being broken in?

 

pretty sure there all 240cc with the exception of the h22.
sohc and dohc injectors are the same cc search but im pretty sure

 

^^ incorrect.. check this site.http://www.phearable.net/tech/stockinjectorsizes.html and also i would not recommend getting diff size injectors and running untuned thats not good for your motor man.

 

here's an old school site that i always used for injector info. i worked with this guy on some of them back in the day, using info from a few sources including ACCEL.

http://www.robietherobot.com/Storm/f...ectorguide.htm

to the OP; you should really have a baseline tune esp with a fresh engine. is the build out of factory spec in terms of compression, cams, etc? you don't want to dilute the oil, wash the cyl walls down during break-in, etc.

some people take a fresh engine and break it in on the dynapack, then tune it. i remember this dude nate tasukon, who now works for motec, used to build engines and take them immediately to do final tunes, flogging the things. i never really felt good about that ; )

 

its a stock rebuild. im getting gsr injectors in a couple days

 

oh, stock rebuild. you should be a-ok with any 240cc injector. make sure your (ignition) timing is stock, too.

 

you can run any injectors as long as they arent Y7 or B8 Injectors.

 

well they are from the d15b8 so i've been running 55cc too low. my compession is at 185 in number 1 and 80 in the rest. i think the lean mixture had a lot to do with it.

 

185 in 1 and 80 in the rest? 80? That is completely wasted...

 

80?
that is way too low

 

ya 80 is like not even there. It sounds like that GSR has blown compression rings.

 

could also be cuz the valves are not sealing properly.

btw, how are you doing Jimster?
I havent been here in a while

 

its true, the head could have blown valve seals. It would be burning alot of oil if the valve seals were blown though. I dont know if it would be burning oil if only the compression rings were blown though.

Im doing good btw. How have you been?

 

no, he means the actual head of the valve not seating properly in the valve seat, thereby allowing much compression into the intake or exhaust.

a leakdown test is the way to go here.

 

ah ok

 

ya i think im gunna change out the rings and check the vavle seats, probably just get a 3angle valve job.

 

how'd you do a rebuild you say and not change piston rings an valve seats?

 

dude, do a leakdown test before you touch a thing!

 

i did put new rings in, y the hell would i call it a rebuild and not do that. but no i did not check the valve seats cuz i didn't wanna pull the valves out. i did a leak down test and the cylinders with low compression did not hold pressure becuz the rings did not seal right.
the reason i want to change out the rings again becuz they obviously didn't seat right. so when im gunna take the head off and have the valve seats checked

 

so valves are all bent, the effin scammer i got the head from failed to tell me this, i swear how can people b so crooked, i hope to god karma bites them in the ****.

 

damn that sucks.

 

yup.

im doing good. just working on my car. rear tire popped on the freeway, spun out, hit a pick up and ended on the side of the road. THANKFULLY!

OP, take your head to a shop so they can fix it. and while your at it, if you have funds also, get a 3 angle valve job and a port and polish

 

damn the same **** happened to me. My rear tire exploded and the tread blew off, I spun out and went through 100 yards of small trees to end at a large tree. This was a while ago but it still happened :/

 

well the shop wanted like 650 to 700 to rebuild it with new valves, guides and valve seals, so i opted to find another used head and test it on site, i actually found one for 350, just the head, no dizzy or i.m. so im having a friend check it out cuz im going out to the dessert. wish me good luck cuz i dont havfe 700 lol

 

well good luck