So I've been reading up on this and can't find a straight answer. If I swap my 95 head with a 98+ head is my compression going to raise and the only way to swap it is use the 98+ head gasket. Or some info on what I need to have in order to use the saturn tbi injectors would be nice to.
Those tbi injectors will need to be run separate from you cars pcm.
We are already talking about the head in
this thread
Rich Grayo Jr. wrote:Mike wrote:Those tbi injectors will need to be run separate from you cars pcm.
We are already talking about the head in this thread
95 isn't TBI...
I know it isn't. He is talking about using saturn tbi injectors in place of the 2.2 injectors. They flow huge though. Not sure how much exactly. It has been done. Just need to control them seperate.
Edited 1 time(s). Last edited Thursday, July 22, 2010 4:20 PM
aye yei yei...
Anthony Holtzberger wrote:So I've been reading up on this and can't find a straight answer. If I swap my 95 head with a 98+ head is my compression going to raise and the only way to swap it is use the 98+ head gasket.
If you put a 98+ head on a 97- block, your compression is going to drop like a rock. Head gasket needs to match year of head.
Anthony Holtzberger wrote:Or some info on what I need to have in order to use the saturn tbi injectors would be nice to.
To use Saturn TBI injectors, you need to have full control over your injector pulse width (ECU) and an adjustable FPR. You may also need to beef up your injector drivers if your stock injectors are high-Z and the Saturns' are low-Z... slowolej would know for sure.
You seem to just be looking to convert to top-feed. I suggest you KISS (Keep It Simple Stupid). Boring out the 95 injector holes and mounting a 2200 rail/injectors is the cheapest and easyist solution.
Mike wrote:Those tbi injectors will need to be run separate from you cars pcm.
Not true.
fortune cookie say: better a delay than a disaster
yeah i've been reading up on the top feed also, but seems like it would be easy to mess up.
OHV notec wrote:
Mike wrote:Those tbi injectors will need to be run separate from you cars pcm.
Not true.
Damn I suck at remembering things today, They will run on the pcm but need different drivers.
slowolej wrote:Resistance per injector is about 1.2 Ohms each, they draw huge amounts of current which required different injector drivers in my pcm. Adjustable FPR required cutting a few coils out of the spring to bring pressure at idle down to maybe 17 psi (I don't remember anymore), bringing injector flow from 52 #/hr down to more reasonable number around 42 #/hr.
91-94 Saturn S series vin 9 engine has these injectors. Also look up 95 G van w/ 454 online to find same size and flow but different color injector.
You need a way to tune your ecm / pcm to use these.
-->Slow
slowolej wrote:Those will fit, but there are some considerations.
1) Those are TBI injectors, which are about 1.2 Ohms each. Putting 4 of those on a batch fire ecm will proabaly kill the injector drivers.
2) As noted, they flow a bunch of fuel.
I've also modified my ecm by installing upgraded injector drivers to handle the additional current the tbi injectors use, and I've got different sense resistors so the peak and hold circuit works correctly.
-->Slow
Yeah I read that thread im looking more towards boosting over n/a. And I know swapping the pistons bump up compression and I was trying to see if I could swap just the 98 head on my 95 and lower it a bit plus I got a buddy who can hook me up with some 98+ parts
How about a link to Slow's injector thread, huh?
Go beyond the "bolt-on".
Anthony Holtzberger wrote:yeah i've been reading up on the top feed also, but seems like it would be easy to mess up.
Either of these would be easier to mess up for Joe Average. However, if you're VERY familiar with electronics and ECU tuning, Saturn injectors might be the way to go. If you're planning on running lots of boost on stock parts, and diveability isn't a major issue, the 98+ head swap might be the way to go.
Nickelin Dimer wrote:How about a link to Slow's injector thread, huh?
Mike already did the hard work. Even the noobiest of newbs that you tell to "SEARCH" every day could find those threads using direct quotes...
fortune cookie say: better a delay than a disaster
If I knew that, I wouldn't be asking for a link... Would I?
Go beyond the "bolt-on".
So what kind of compression would I be looking at?
Question about the top feed do I just bore out the injector holes until the new injectors fit?
Anthony Holtzberger wrote:Question about the top feed do I just bore out the injector holes until the new injectors fit?
Pretty much. Make sure the lower o-ring is sealing.
fortune cookie say: better a delay than a disaster
So what would be best a stone bit or just a drill bit?
A drill-press... And a mounting for the manifold so it don't wander. But somehow, judging by your last question, I doubt you'll actually be doing this mod.
Go beyond the "bolt-on".
if you say so it was just a question
No hurt meant... Just seen too-many ask alot of questions that seem like they're getting in over their heads.
Go beyond the "bolt-on".
I mean I have a drill press and all that good stuff. I have been gathering the parts I need, I just want to make sure that I choose to use the right tools and not the wrong ones
Cool... Consider that one statement retracted. It's good to see someone who understands "The right tool for the job!"
I even mention getting ASE-cert training... then usually having to explain what it is... and automatically people seem to think I've been issued a magic wrench, and all I need to do is wave it & whatever is amiss with a car is resolved. They don't realize that there's alotta variations in design from model-to-model, and different tools needed for specific repairs. Amongst which is work-space, which I really don't have to do much of anything in. And it all costs money!... Which I really don't have.
Go beyond the "bolt-on".
yeah i went to lincoln tech for automotive and diesel technology and business management. so i understand that there are the right ways and the wrong ways i just wanted to make sure that i would be able to do it the right way.
