What size pulley for me? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Forced Induction All questions and problems regarding Superchargers, Turbos, NOS, ZEX, intercoolers, water injection, etc.

Reply
 
 
 
Thread Tools Search this Thread
Old 06-19-2006, 01:59 PM   #1
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Apr 2006
Location: Robertsdale Alabama
Posts: 500
Thanks: 0
Thanked 0 Times in 0 Posts
hugger10 is on a distinguished road
Default What size pulley for me?

I know there is a forum right there with the samequestion in it but I'm not exactly down with the lingo.

I need to know what size pulley would do the most for me. I have a fenderwell intake kit and that'* about it for the motor. I don't really have the luxury of being able to not drive my car for a period of time while I would wait on someone to work on my PCM.

So should I go 3.4 or 3.5? I want as much horsepower as possible but this will probably be the last thing I mod next to a 180 stat.
hugger10 is offline   Reply With Quote
Old 06-19-2006, 02:06 PM   #2
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Do you own a scantool?

If not, the 3.5 is probably the safe bet. But even with that, you should scan. Find a member nearby if you don't own a scantool.
willwren is offline   Reply With Quote
Old 06-19-2006, 02:23 PM   #3
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Apr 2006
Location: Robertsdale Alabama
Posts: 500
Thanks: 0
Thanked 0 Times in 0 Posts
hugger10 is on a distinguished road
Default

Well I could either just get both sizes and go to autozone or get that kind of scanner that fits in the airvent and just one size.

Would actane booster help with KR?
hugger10 is offline   Reply With Quote
Old 06-19-2006, 03:01 PM   #4
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

You going to bump your octane all the time? Most over the counter octane booster will gain you .1 octane per dose. POINT one. And Autozone won't let you borrow the scantool for WOT runs to check for KR. It must be done while driving.

An Aeroforce scangauge would be a good idea if you're going to play the SC pulley game.
willwren is offline   Reply With Quote
Old 06-19-2006, 03:21 PM   #5
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

As Willwren mentions the pulley size is a bit of a game. We can recommend a 3.5 knowing most cars will run very well that way. An Aeroforce gauge would be a very good investment. Also, if you are considering the 3.4/3.5 pulleys... a good way to determine which is actually best for your situation would be to pick up the MPS or multi pulley system. This way you could buy both pulley'* and swap as necessary.
BillBoost37 is offline   Reply With Quote
Old 06-20-2006, 01:25 AM   #6
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Apr 2006
Location: Robertsdale Alabama
Posts: 500
Thanks: 0
Thanked 0 Times in 0 Posts
hugger10 is on a distinguished road
Default

Is it really so hard to change a pully without buying a multipulley system. What I would like to do is be able to swap pulleys anytime between stock and whatever else I get.

Now what is Knock Retard, how bad is it, long term effects if left unchecked?
hugger10 is offline   Reply With Quote
Old 06-20-2006, 01:27 AM   #7
Junior Member
 
Join Date: Apr 2006
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
Bonneville92V688 is on a distinguished road
Default

Long term effects can be holes in pistons, burnt valves, etc if there is too much. Knock retard is where the timing is retarded and if it cannot go anymore, it will knock and ping, resulting in what I said about holes in pistons and burnt valves, piston rings.
Bonneville92V688 is offline   Reply With Quote
Old 06-20-2006, 01:36 AM   #8
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Apr 2006
Location: Robertsdale Alabama
Posts: 500
Thanks: 0
Thanked 0 Times in 0 Posts
hugger10 is on a distinguished road
Default

hmm. I might wait a while before I get into that ball game. I mean it seemed simple enough at first; get a $70 pulley and get 30 horses. But like 250 for the aeroforce and then maybe a different pulley and then potential damage to your car. Bleh. I think I'll just be happy I have a car with double the power of my last one for now.

hey thanks for all the know-how, this forum is really great,whatever I need to know I can find out within 3 hours.
hugger10 is offline   Reply With Quote
Old 06-20-2006, 01:38 AM   #9
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Hugger, holes in pistons and burnt valves are rare. You're very likely quite safe with a 3.5, but do scan for KR.
willwren is offline   Reply With Quote
Old 06-20-2006, 02:34 PM   #10
jdq
Senior Member
Posts like a Corvette
 
Join Date: Nov 2005
Location: Hamilton, Ontario , Canada
Posts: 1,201
Thanks: 0
Thanked 0 Times in 0 Posts
jdq is on a distinguished road
Default

[quote="hugger10"]Is it really so hard to change a pully without buying a multipulley system. What I would like to do is be able to swap pulleys anytime between stock and whatever else I get.

Modular pulley system will make it much easier, although if you get the special pulley puller you will need its not too much trouble, you probably wouldnt be changing much at all.You will probably be ok with 3.5 with a CAI or FWI , 180 thermo,1 range cooler plugs and being able to eye the KR with aeroforce.I have no KR with this setup.3.4 would prolly be a different story but the 3.5 has kept me happy for now.
jdq is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
What size is the size of a 98 bonnys fog lights? Sickness90 1992-1999 3 02-17-2009 01:02 PM
[size=18]1992 ssei supercharger problems[/size] triff 1992-1999 1 03-03-2007 08:30 AM
Help with size of catalytic converter pipe size... Tonioseven 1987-1991 8 02-07-2005 10:52 AM
Crank Pulley Size TelePlayer Forced Induction 6 08-05-2003 08:27 PM
What pulley size is the right size?????? Mark Peters Performance, Brainstorming & Tuning 10 03-21-2003 09:42 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 04:12 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.