Cobalt SS Network

2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

2.85/42s

Thread Tools
 
Search this Thread
 
Old 02-10-2008, 12:46 PM
  #1  
Senior Member
Thread Starter
 
MfZx25z's Avatar
 
Join Date: 02-05-08
Location: Philly, Pa
Posts: 534
Likes: 0
Received 0 Likes on 0 Posts
2.85/42s
2.85 pully with 42's ok to run and will I need cooling mods, or can I get away with it?
MfZx25z is offline  
Reply Like
Old 02-10-2008, 01:05 PM
  #2  
New Member
 
BWSW214's Avatar
 
Join Date: 05-08-07
Location: Madison, NJ
Posts: 192
Likes: 0
Received 0 Likes on 0 Posts
i ran a 2.85 fine on my car, people will tell you its not good but i now run a 2.8 on 42's and a stage 2 tunes and im still running fine.. have had it on for a good 7k miles
BWSW214 is offline  
Reply Like
Old 02-10-2008, 01:06 PM
  #3  
Banned
 
Onyxd04Redline's Avatar
 
Join Date: 06-11-07
Location: Az
Posts: 5,417
Likes: 0
Received 0 Likes on 0 Posts
God we need a sticky for this subject. IDC's will be through the roof and your power above 6000rpm will be limited compared to 60lb injectors and 2.85"
Onyxd04Redline is offline  
Reply Like
Old 02-10-2008, 01:09 PM
  #4  
Senior Member
Thread Starter
 
MfZx25z's Avatar
 
Join Date: 02-05-08
Location: Philly, Pa
Posts: 534
Likes: 0
Received 0 Likes on 0 Posts
oh ok so what do you guys recommend?
MfZx25z is offline  
Reply Like
Old 02-10-2008, 01:10 PM
  #5  
Banned
 
Onyxd04Redline's Avatar
 
Join Date: 06-11-07
Location: Az
Posts: 5,417
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by MfZx25z
oh ok so what do you guys recommend?
With 42's? 2.9"
Onyxd04Redline is offline  
Reply Like
Old 02-10-2008, 01:14 PM
  #6  
Senior Member
Thread Starter
 
MfZx25z's Avatar
 
Join Date: 02-05-08
Location: Philly, Pa
Posts: 534
Likes: 0
Received 0 Likes on 0 Posts
k thanks
MfZx25z is offline  
Reply Like
Old 02-10-2008, 01:18 PM
  #7  
Senior Member
iTrader: (1)
 
lsjwannabe's Avatar
 
Join Date: 01-23-06
Location: on here
Posts: 10,731
Likes: 0
Received 0 Likes on 0 Posts
get 60's if your serious
lsjwannabe is offline  
Reply Like
Old 02-10-2008, 01:26 PM
  #8  
Banned
 
Onyxd04Redline's Avatar
 
Join Date: 06-11-07
Location: Az
Posts: 5,417
Likes: 0
Received 0 Likes on 0 Posts
If it was MY car i wouldn't even consider a 2.9" without 60's. Most i would go with 42's would be a 3"
Onyxd04Redline is offline  
Reply Like
Old 02-10-2008, 01:31 PM
  #9  
Senior Member
Thread Starter
 
MfZx25z's Avatar
 
Join Date: 02-05-08
Location: Philly, Pa
Posts: 534
Likes: 0
Received 0 Likes on 0 Posts
k, also do you recommend any good sites to get this stuff?
MfZx25z is offline  
Reply Like
Old 02-10-2008, 01:33 PM
  #10  
Senior Member
iTrader: (1)
 
lsjwannabe's Avatar
 
Join Date: 01-23-06
Location: on here
Posts: 10,731
Likes: 0
Received 0 Likes on 0 Posts
new era performance sells flow matched 60's for 240 shipped

Originally Posted by Onyxd04Redline
If it was MY car i wouldn't even consider a 2.9" without 60's. Most i would go with 42's would be a 3"
yeah gm's weird like that they push the envelope on everything. stg2 is close to and in some cases over 100% idc's but its ok cause its warrantied right lol
Last edited by lsjwannabe; 02-10-2008 at 01:33 PM. Reason: Automerged Doublepost
lsjwannabe is offline  
Reply Like
Old 02-10-2008, 01:42 PM
  #11  
Senior Member
 
Kaisoboy's Avatar
 
Join Date: 12-20-06
Location: Calgary, AB Canada
Posts: 2,379
Likes: 0
Received 0 Likes on 0 Posts
Not true. I am running a 2.85/42.5 lb and I don't see IDC over 90% @ 7000 rpm. Now I am also 3500' SL.

cheers
Kaisoboy is offline  
Reply Like
Old 02-10-2008, 01:44 PM
  #12  
Senior Member
iTrader: (1)
 
Dayta's Avatar
 
Join Date: 12-09-06
Location: MA
Posts: 5,431
Likes: 0
Received 1 Like on 1 Post
NOOOO
get 60s, the 42s youll top out in no time with a 2.8 or lower

it happened to me
Last edited by Dayta; 02-10-2008 at 01:44 PM. Reason: Automerged Doublepost
Dayta is offline  
Reply Like
Old 02-10-2008, 01:44 PM
  #13  
Senior Member
iTrader: (1)
 
lsjwannabe's Avatar
 
Join Date: 01-23-06
Location: on here
Posts: 10,731
Likes: 0
Received 0 Likes on 0 Posts
yeah elevation helps you out to but you probably see 14~15 psi as people down here would see closer to 18 right
lsjwannabe is offline  
Reply Like
Old 02-10-2008, 01:45 PM
  #14  
Senior Member
Thread Starter
 
MfZx25z's Avatar
 
Join Date: 02-05-08
Location: Philly, Pa
Posts: 534
Likes: 0
Received 0 Likes on 0 Posts
k and cooling mods aren't necessary with 2.8?
MfZx25z is offline  
Reply Like
Old 02-10-2008, 01:45 PM
  #15  
Senior Member
iTrader: (1)
 
Dayta's Avatar
 
Join Date: 12-09-06
Location: MA
Posts: 5,431
Likes: 0
Received 1 Like on 1 Post
no, but they do help
Dayta is offline  
Reply Like
Old 02-10-2008, 01:45 PM
  #16  
Senior Member
iTrader: (1)
 
lsjwannabe's Avatar
 
Join Date: 01-23-06
Location: on here
Posts: 10,731
Likes: 0
Received 0 Likes on 0 Posts
it would only help you
lsjwannabe is offline  
Reply Like
Old 02-10-2008, 01:47 PM
  #17  
Senior Member
Thread Starter
 
MfZx25z's Avatar
 
Join Date: 02-05-08
Location: Philly, Pa
Posts: 534
Likes: 0
Received 0 Likes on 0 Posts
alright sounds good, thanks
MfZx25z is offline  
Reply Like
Old 02-10-2008, 01:48 PM
  #18  
Senior Member
 
Kaisoboy's Avatar
 
Join Date: 12-20-06
Location: Calgary, AB Canada
Posts: 2,379
Likes: 0
Received 0 Likes on 0 Posts
I am pushing 16 - 17 psi @ 7000 rpm, IPW +/-15 ms = +/- 87.5 % IDC

I have also installed a Cobra H/E to help with cooling.
Kaisoboy is offline  
Reply Like
Old 02-10-2008, 01:49 PM
  #19  
Senior Member
iTrader: (1)
 
Dayta's Avatar
 
Join Date: 12-09-06
Location: MA
Posts: 5,431
Likes: 0
Received 1 Like on 1 Post
no prob
but do run 60s if you get a 2.8
Dayta is offline  
Reply Like
Old 02-10-2008, 01:52 PM
  #20  
Junior Member
 
tlax23's Avatar
 
Join Date: 05-28-07
Location: Washington
Posts: 462
Likes: 0
Received 0 Likes on 0 Posts
Look around the site for a little bit and do some research before you make a decision. Theres some good info on this if you dig around through all the crap. Try to decide what you want from the car and your potential goals. A potential place to start:

tuning
60's
2.7-2.8 in pulley
poly mounts
full exhaust
intake
meth/heat exchanger

Dont overlook traction and cooling mods. Too many people just want to buy more and more power adders, when they cant put the power they are making currently to the ground. If your are going to go the route above, cooling mods will also be a must.
tlax23 is offline  
Reply Like
Old 02-10-2008, 06:55 PM
  #21  
Member
 
nherbst454's Avatar
 
Join Date: 10-12-06
Location: Minnesota
Posts: 336
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by MfZx25z
k, also do you recommend any good sites to get this stuff?
A good site for the pulley would be www.smoothflowpulleys.com/Stage2.html !

Nate
nherbst454 is offline  
Reply Like
Old 02-11-2008, 08:02 PM
  #22  
Senior Member
 
Kaisoboy's Avatar
 
Join Date: 12-20-06
Location: Calgary, AB Canada
Posts: 2,379
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by nherbst454
A good site for the pulley would be www.smoothflowpulleys.com/Stage2.html !

Nate
Way to represent Nate!
Kaisoboy is offline  
Reply Like
Old 02-11-2008, 08:03 PM
  #23  
Banned
 
scribbles's Avatar
 
Join Date: 02-11-08
Location: NY
Posts: 86
Likes: 0
Received 0 Likes on 0 Posts
IDC's over 90% can lead to a sticking injector which is really bad. Your best off just getting the 60's.
scribbles is offline  
Reply Like
Old 02-11-2008, 08:38 PM
  #24  
Senior Member
iTrader: (2)
 
hungryhip-ccp's Avatar
 
Join Date: 05-31-07
Location: SoCal, Lancaster
Posts: 4,339
Likes: 0
Received 0 Likes on 0 Posts
yes! you CAN but back to back pulls and you will be in big trouble and even on a single pass you idc will be around 120-140
hungryhip-ccp is offline  
Reply Like
Back to Subforum
2.0L LSJ Performance Tech
View Next Unread
LSJ Doctors Please Give Me Your Diagnosis




Advanced Search

All times are GMT -4. The time now is 11:26 PM.