Okay, today i was tinkering around with my car, and i found out that i'm not boosting because i have an underdrive crank pulley, which isn't spinning my blower fast enough to create a whole lot of boost, i think i'm boosting at like 1 pound...lol. It sucks, but i'm gonna order a light weight, stock sized, pulley. and maybe a smaller blower pulley also, maybe like a 2.7 or maybe at the most, a 2.6, but i'm leaning more towards a 2.7" I also need a header and after that i think i'd be pretty happy with the whole setup. I took my car up to the chevy dealership in Ozark, AL to get the reflash done, but the freaking retards wouldn't do it, because i guess the reflash is for a "2000" 2.4l Twin Cam, and they wouldn't do it because i have a 99, what kinda $@@# is that? That pissed me off! So, i'm going to go for the HPtuners program and do it myself. I've had nothing but problems with the dealerships around here....i oredered a new A-pillar for the driver side and they sent me a passenger side instead.....retards! Anyways, i just wanted to let everyone know that before you S/C your 2.4 make sure you haven't put an underdrive crank on it.
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I took my car up to the chevy dealership in Ozark, AL to get the reflash done, but the freaking retards wouldn't do it, because i guess the reflash is for a "2000" 2.4l Twin Cam, and they wouldn't do it because i have a 99, what kinda $@@# is that?
Its the truth. The S/C reflash cannot be applied to any year before 2000.
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in response to your keen observation of your pulley/boost problem: uh..... duh?
in response to the reflash issue: maybe try researching what you're doing to your car, before you do it?
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'Nuff said
no comment on the whole post.
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Racetech in toronto put a crank pulley on a 2.4 that was 1/2inch oversized and lightweight. Gained 2 psi.
^ that is what i been wanting to do for years. awesome. maybe i will contact them and ask them about it.
(no comment on the post)
gtpsunfire wrote:Racetech in toronto put a crank pulley on a 2.4 that was 1/2inch oversized and lightweight. Gained 2 psi.
Did they have it custom made?
What would be the value in this? Why would you want to overdrive your other accessories?
I dont think that will be a problem . If you are worring about spinning the alternator faster. People now a days can have reved 2.4ls around 7k rpms with hp tuners.
I know with the honda cars, people with the jackson racing s/c have put on a crv crank pulley to gain more boost.
i am not sure of the downfalls of doing a bigger crank pulley, maybe always spinning the alternator faster then normal over time wouldnt be a good idea.
also , ford lightening /cobra's have bigger then stock size crank pulleys available.
Yeah Kevin, it was custom made and it was a beautiful piece. Aluminum, much lighter than stock and 1/2 inch bigger. Noticed a big difference and once they put alcohol injection on, it was like a whole new car. I went in it before and after and the difference was very noticible.
Bigger crank pulley = the same sort of effect as a smaller supercharger pulley.
The alternator has a voltage regulator inside it... it will govern itself, no worries there. The A/C (if you still have it), that will just be colder faster
It's not as if you're sitting at high RPMs all the time... just once in a while right?
ya i am interested in that pulley. i pm'd you (gtpsunfire).
i will see if i can get incontact with racetech here soon.
i use to have the rsm pulley on my old 2200 s/ced cav. it does make a differance it is so f'in light
they told me 250$ canadian . i have to figure out what that is in usa $.
I would be interested in that pulley as well. Jake, please keep me in the loop
BTW, that is $220.45 US
Jason
99 Z24
Racers Edge
Johnny Mack Turbo Systems
Engineered Performance
the larger crank pulley will allow you to use a larger s/c pulley , which would help to reduce belt slippage
the a/c shuts off over 85% throttle and heavy engine loads
alt will charge better at slower speeds , with less motor drain
I didnt get your PM Jake. Well atleast you got in contact with them. It really was a nice piece.
ya i am uncertain though.
i mean a smaller s/c pulley does the same thing basically and is cheaper and you probably woudlnt have to get a new belt and would be cheaper.
i also e mailed that guy in the performance forum who made up them 2.4/ ecotec pulleys.
i will check back here.
dude who makes the pulleys in the performance section said 275/ 300$. f' that.
racetech said they used the stock s/c belt too.
Jake, are you talking about Mike who did the GP on dual pulley sets???
I wonder if he will just make 10 to 15 pullies what the price will be. I am sure we can get at least that many sold
Anyword from Racetech???
Jason
99 Z24
Racers Edge
Johnny Mack Turbo Systems
Engineered Performance
ya. he charges like what, little over 100$ for the stock size pulleys.
racetech- they said they use the stock belt that came with the s/c.
i e mailed APEX( i once had there stock size pulley /so did you). they havent gotten back to me.
so as of right now, only option is racetech for 225 ish $. fricken crazy.
also, GP said he knows a guy that might be able to make one. i have to get that info.
just e mailed the dude at billetflow.com and asked him if he can do something like this.
i will keep you updated.
Yeah, I remember when Mike started his design, there was a big debate on oversize crank pullies
Yes, I did have one of the Apex pullies, but traded it for 4.11 ring gear and output shaft
$225 is a stretch but I would be willing to pay it for an oversized crank pulley
Jason
99 Z24
Racers Edge
Johnny Mack Turbo Systems
Engineered Performance
Jake,
Do you have any updates??
Jason
99 Z24
Racers Edge
Johnny Mack Turbo Systems
Engineered Performance
nope. seriously contemplating selling the s/c set up. got to get stock stuff first, still on the cav though.
seems like the best/cheapest way is a pulley boys pulley.
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