wtt 3.25 Press on for a 3.4 ?

 
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loudgpOffline
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Greg
1996 Grand Prix GT
Joined: 03 May 2006
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Age: 44
PostPosted: Mon Jun 26, 2006 9:32 am    Post subject: wtt 3.25 Press on for a 3.4 ? Reply with quote

I have a 3.25" press on pulley, looking for a 3.4 press on, Was gonna go 3.8 but why..lol I have heads that are done, a cam, rockers, lifters, 3"dp.... why waste the power...Lol...... I just dont want to explode a piston with the 3.25 on a stock l36 bottom end
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KC2GIWOffline
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Matt Antonio
1998 Grand Prix GTX
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PostPosted: Mon Jun 26, 2006 10:24 am    Post subject: Reply with quote

<--heads/cam/headers l36 bottom end running 3.0 with 0 KR.

What cam?

You should be able to use at LEAST a 3.4...maybe even smaller i'd think Idea
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loudgpOffline
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Greg
1996 Grand Prix GT
Joined: 03 May 2006
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PostPosted: Mon Jun 26, 2006 1:41 pm    Post subject: Reply with quote

i am not 100% sure as to what cam, i think its a stattama stg2 blower cam, were waiting to find out from the machine shop. the heads had some work done, valves opened up a bit internally 4 angles , a mild port and polish, 105lb springs, titanium retainers and locks, i am not sure who did them though, look to be a local shop might of. I want to go with a 3.4 b/c its a dialy driver and i have enough problems with w-bodys and drivetrain.... still waiting on a trans for our monte.. ughh
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John Csotello
1998 Grand Prix GTP
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PostPosted: Mon Jun 26, 2006 4:38 pm    Post subject: Reply with quote

pully size should be the last thing you have to worrey about. you should start with a size bigger then you should be ok with, that to only safe way. Without headers your goig to have to watch it like your thinking under a 3.4 . What are you doing for a supercharger?
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Joe_OmertaOffline
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Joe Ventresca
2000 Grand Prix GTP
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PostPosted: Mon Jun 26, 2006 9:03 pm    Post subject: Reply with quote

i can trade u for my 3.4. only thing is i'm not positive i can run the 3.25 safely w/ my mods. if u have time where i could use it for like a week and get a scan or 2 in w/ it and it works well w/ mayb 1*KR(peak) then i'll give u the 3.4. if not then i'll just give the 3.25 back
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Scott McAvoy
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PostPosted: Mon Jun 26, 2006 11:56 pm    Post subject: Reply with quote

Joe_Omerta wrote:
if u have time where i could use it for like a week and get a scan or 2 in w/ it and it works well w/ mayb 1*KR(peak) then i'll give u the 3.4. if not then i'll just give the 3.25 back


Any KR is BAD KR!! End of story, if you are running 9.5:1 compression with forced induction and are getting any KR, your engine doesn't have long to survive!



Whats that noise? OH right thats just your piston melting! Razz
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Joe_OmertaOffline
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Joe Ventresca
2000 Grand Prix GTP
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PostPosted: Tue Jun 27, 2006 6:39 am    Post subject: Reply with quote

any form of KR is motivation for new car parts Very Happy
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loudgpOffline
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Greg
1996 Grand Prix GT
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PostPosted: Tue Jun 27, 2006 8:46 am    Post subject: Reply with quote

Hey joe, That would be fine.... I am in no hury for the pulley~ I am still waiting to get the lower and blower back from my buddys machine shop, hes porting and polishing them.. Plus still debating about a cam....and if i should just pop the pistons and run a diamond piston for the added security. but i might just go with the 3.8 and see what it does and step to a mod system and work to a 3.6-3.5-3.4 etc....... I dont want too much boost as its a daily driver, but the car lacks what my wifes turbod gp and my turbo monte feels like. i like passin gear...Lol...

Joe I might swing by and drop off the snout with you tonight at work.
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GTP98Offline
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Jay
1998 Grand Prix GTP
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PostPosted: Tue Jun 27, 2006 8:54 am    Post subject: Reply with quote

Joe you should be fine with a 3.25.
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Jack Toepfer
1994 Grand Prix GTX
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PostPosted: Tue Jun 27, 2006 2:47 pm    Post subject: Reply with quote

I agree with GTP98, your 3.25 should be fine.

You could just throw your 3.8 back on and troubleshoot.

How are your plugs/wires? Good fuel?

I see what you mean about not wanting the 3.8 if you can afford to do a 3.4 but I have a feeling your problems might still be there.
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Joe Ventresca
2000 Grand Prix GTP
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PostPosted: Tue Jun 27, 2006 6:33 pm    Post subject: Reply with quote

greg, i have both the 3.4 and 3.8 so if u wanna trial/error w/ either of them that'd be fine. i have the puller in my trunk so i can remove the pulley from the snout whenever ur rdy for it.
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