Question about GM m45 supercharger. - Boost Forum

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Question about GM m45 supercharger.
Tuesday, May 29, 2007 5:30 PM
Is this purely a bolt-on kit? Or will i have to buy alot of aftermarket parts to implement it's full potential? I tinker, and my car is mostly garaged, since it's almost purely project now, and this is a dense curiosity of mine.
Thanks.

I'm back from the dead.
Currently Driving: RSX Type-S.
My Cavalier Burnt up :-(

Re: Question about GM m45 supercharger.
Tuesday, May 29, 2007 5:38 PM
you can buy the GM kit and wouldnt have to buy one single bolt, nut ect.... and put out about 180-190whp but there is alot more you can still do that would still be small mods like intake and such.. with out having to change out the pulley you might be able to get about 200whpish...



The First Twin Charged jbody
blue car (R.I.P) - 240whp @7psi..
silver car - 305whp 315lbs.tq @15psi (91 Octane) or 420whp & 425lbs.TQ @20psi (94 octane+Alcohol Injection)
All dynos run on a Mustang dyno
Re: Question about GM m45 supercharger.
Tuesday, May 29, 2007 6:20 PM
he has a 99 isn't there something to do with the inectors and starter you need to change? i dont know much about it.



Re: Question about GM m45 supercharger.
Tuesday, May 29, 2007 6:28 PM
Look through the FAQ at the top of the Boost forum



Car is for Sale!Supercharger kit is for sale!
Re: Question about GM m45 supercharger.
Tuesday, May 29, 2007 6:30 PM
neb15 wrote:he has a 99 isn't there something to do with the inectors and starter you need to change? i dont know much about it.


depends on when his car was built, i guess you could say 1999.5+ will work lol u can put it on pre-99.5's tho, just a tad bit more work and some more parts needed. you cant use the gmsc's injectors pre 99.5 though, nor the ECM reflash.

josh, dont forget wade jarvis's 214whp on a stock exhaust.




Re: Question about GM m45 supercharger.
Wednesday, May 30, 2007 7:25 AM
Thanks guys! I was def going to upgrade the injectors, but I would need to upgrade the starter too?
I already have the exhaust and headers

I'm back from the dead.
Currently Driving: RSX Type-S.
My Cavalier Burnt up :-(
Re: Question about GM m45 supercharger.
Wednesday, May 30, 2007 8:35 AM
Please read the FAQ at the top of this page.


FORGET GIRLS GONE WILD WE HAVE GOVERNMENT SPENDING GONE WILD!

Re: Question about GM m45 supercharger.
Wednesday, May 30, 2007 8:57 AM
So if you guys are going to waste the time to type to tell him to search or look at something, why not just tell him what he needs to do?

For your car, you will have to get a header that doesn't have the EGR port, OR close it up with the EGR block off plate.
any GM dealer can get you these:

EGR Block-off Plate (#24575505)
EGR Block-off Plate Gasket (#24573947)

You will need a starter from a 2000 2.4 grand am (i mean, that's what I used, but i'm guessing the cavi is the same). This is smaller than the one you have. Don't forget to save the other one as there is a core charge

You will need to get the low impedence injectors. The gm kit comes with high impedence, which your motor cannot use. I got mine from RC Engineering. If you plan on uppin the boost, get some 370cc injectors... otherwise 320's will be fine

There are some parts that you have to swap out, but those come in the kit.


www.alterimpact.com
www.cardomain.com/id/sweet98gagt
Re: Question about GM m45 supercharger.
Wednesday, May 30, 2007 10:24 AM


You can just use the exhaust gasket from a '00 or newer (doesn't have the cutout for EGR port) 2.4.

You can use the high impedence injectors (most '99> are from the factory). Most people don't read enough information to understand that you CAN in fact use high or low impedence injector with low impedence drivers BUT you CANNOT use low impedence injectors with high impedence drivers (without using resistors).


Most '99's have a smaller starter from the factory but there seems to be a difference in the case for '00>. So you should be okay with your starter.















"The FACTS are always subject to CHANGE once the TRUTH is applied"
"In the entire history of man the only stupid questions are the ones that don't get asked"
Re: Question about GM m45 supercharger.
Wednesday, May 30, 2007 10:43 AM
Isn't the biggest problem is that he won't be able to get the GM Reflash?



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Re: Question about GM m45 supercharger.
Wednesday, May 30, 2007 11:08 AM
^ That's Correct ^






"The FACTS are always subject to CHANGE once the TRUTH is applied"
"In the entire history of man the only stupid questions are the ones that don't get asked"

Re: Question about GM m45 supercharger.
Wednesday, May 30, 2007 11:25 AM
Yeah he's going to have to get HPT to make it run... or go the old fashioned root and get an s-afc and fpr and tune that way... not really a great option unless you are familar with how to tune with those


www.alterimpact.com
www.cardomain.com/id/sweet98gagt
Re: Question about GM m45 supercharger.
Wednesday, May 30, 2007 2:38 PM
If it were easier to just tell him what to do, why do we have the FAQs stickied at the top of the page in the first place?





14.330 @ 96.37mph
Re: Question about GM m45 supercharger.
Wednesday, May 30, 2007 6:24 PM
z yaaaa wrote:
neb15 wrote:josh, dont forget wade jarvis's 214whp on a stock exhaust.



ahh this is true.. man the stock dyno numbers for this are all over the map ahah i know there was no way in hell i was even close to 200whp with a exhaust and intake even...



The First Twin Charged jbody
blue car (R.I.P) - 240whp @7psi..
silver car - 305whp 315lbs.tq @15psi (91 Octane) or 420whp & 425lbs.TQ @20psi (94 octane+Alcohol Injection)
All dynos run on a Mustang dyno
Re: Question about GM m45 supercharger.
Wednesday, May 30, 2007 7:40 PM
no major mods for the supercharger other than porting it and pulleys. you can always build the motor though

14.82 @ 97 mph
Re: Question about GM m45 supercharger.
Thursday, May 31, 2007 7:41 AM
Would you even recommend a supercharger for my j since it has 88,000 miles? Would it even be economical at this age?

I'm back from the dead.
Currently Driving: RSX Type-S.
My Cavalier Burnt up :-(
Re: Question about GM m45 supercharger.
Thursday, May 31, 2007 8:44 AM
Wil Ketchin wrote:Would you even recommend a supercharger for my j since it has 88,000 miles? Would it even be economical at this age?


If you HAVE to drive it everyday, don't boost it. If you don't, just upgrade whatever breaks along the way (broken rod? upgrade to forged, blown gasket? take the time to port or swap heads and use ARP studs, ect). I'm not saying that something WILL break, only that there is more downtime associated with this route than a stock car (duh)

I want to boost my cav so bad I can taste it, but I cannot afford to have it quit on me any sooner than it already will.



Re: Question about GM m45 supercharger.
Thursday, May 31, 2007 9:20 AM
oldskool wrote:
Wil Ketchin wrote:Would you even recommend a supercharger for my j since it has 88,000 miles? Would it even be economical at this age?


If you HAVE to drive it everyday, don't boost it. If you don't, just upgrade whatever breaks along the way (broken rod? upgrade to forged, blown gasket? take the time to port or swap heads and use ARP studs, ect). I'm not saying that something WILL break, only that there is more downtime associated with this route than a stock car (duh)

I want to boost my cav so bad I can taste it, but I cannot afford to have it quit on me any sooner than it already will.


Well, i make a lot of cash now for my age, and like i said, i tinker. So if the car BREAKS, per se, I will just buy another. But also, i don't really need to worry, since i have access to another car if something needs to be worked on.

I want to boot mine like nobodies business as well
The only problem, the kid who had the car before me made a mess of the car (ie, running a venom 400 chip, using zip ties to hold stuff down, and not conditioning rubber so it cracked), and i feel as if there would now be alot of carbon deposits in the engine, and the pistons might need to be replaced.

Any advice?


I'm back from the dead.
Currently Driving: RSX Type-S.
My Cavalier Burnt up :-(
Re: Question about GM m45 supercharger.
Thursday, May 31, 2007 9:51 AM
Well if your up for a rebuild and you can afford it, go for it! Forged rods and pistons (don't lower compression with the M45) are an excellent start.



Re: Question about GM m45 supercharger.
Thursday, May 31, 2007 11:09 AM
oldskool wrote:Well if your up for a rebuild and you can afford it, go for it! Forged rods and pistons (don't lower compression with the M45) are an excellent start.


Well, here's the thing, I'm gradually learning as i go along, and I am diligent at what i do, as well. But i am unfamiliar of these terms.
What are forged rods and pistons, can i do it myself, and how much would parts cost? I have all the tools ill need in my garage, that used to be my dad's when he worked on cars, thus my general knowledge.


I'm back from the dead.
Currently Driving: RSX Type-S.
My Cavalier Burnt up :-(
Re: Question about GM m45 supercharger.
Thursday, May 31, 2007 12:47 PM
I JUST boosted mine starting like a month ago, and i've got 93k on the body & motor, and about 70ish or so on the tranny/clutch. The thing to remember about s/c a car is that it's only going to work when you want it to... Meaning if you don't floor it, you won't boost as you won't have built up enough rev's to get the charger to compress the air. I don't even really start boosting til about 35-3800 (about 5 psi) and max's out 9.5psi right around 5900ish. So if i'm driving along, and i shift before 3500, I'm still in vac. Not boosting also means you retain your current gas mileage which is a plus. It's more like, put the foot down and ure gonna get a nice jump in power, otherwise, keep on crusin, you know what i'm sayin?

forged internals are parts you buy... i'm sure there has to be a STICKY about all the stuff to buy to rebuild your motor. If not head over to quad4forums.com and look for posts by spyhunter. He has a 2000 grand am he turbo'd puttin down 400whp and he's got a build sheet (in fact, it may be on this site as well). Sure you could rebuild your block, but there's a lot to it... enough that I know I won't be attempting it, but if you are serious about rebuilding your 2.4, then find a race shop that does rebuilds, or a local shop where you have an ASE GM tech on hand as he would be the most likely capable of doing the job correctly


www.alterimpact.com
www.cardomain.com/id/sweet98gagt

Re: Question about GM m45 supercharger.
Thursday, May 31, 2007 2:02 PM
Wow, you guys are so much help
Any other information would be greatly appreciated.
Im literally taking notes. haha.


I'm back from the dead.
Currently Driving: RSX Type-S.
My Cavalier Burnt up :-(
Re: Question about GM m45 supercharger.
Thursday, May 31, 2007 2:33 PM
a little bit of seafoam will help clean up a lot of crap inside your motor.



Re: Question about GM m45 supercharger.
Thursday, May 31, 2007 4:05 PM
the lemur wrote:a little bit of seafoam will help clean up a lot of crap inside your motor.

How would i go about this?


I'm back from the dead.
Currently Driving: RSX Type-S.
My Cavalier Burnt up :-(
Re: Question about GM m45 supercharger.
Friday, June 01, 2007 7:11 AM
Suck it in and watch it smoke. 1/3 in the tank, 1/3 in the oil, 1/3 in any vacuum line.


Labrat
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