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05-03-2009, 08:11 PM #1
- Join Date
- May 2009
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SOM- 2002 SS
Thoughts on First mods to High mileage 01 Z28
My first Planned mods to a totally stone stock LS1 are an intake, 1.8 rrs (new comp cams ones? saw them in gmhtp) replacement valve springs and possibly a very very mild cam in the near future. the motor has 115k miles on it anything I should be aware of?
I have a few questions on other mods.. does mezzier have an ewp for the ls1?
are there underdrive pullies?
Would any of you reccomend either of those?
Last mods will hopefully be a set of longtubes with a new exhaust. Any brand of longtubes not liked on the forums?
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05-03-2009, 08:24 PM #2
Money better spent in other areas. First off 1.7 rockers if you absolutley must. Water pump like your underdrive pulley lets the car get to the powerband faster but you will only see minimal gains in performance especially if your not rolling w/ the heads and cam.
Slp sucks and everything else is fine-some have even gotten the cheapo stainless ebay headers. As long as the motor was taken care of a cam won't hurt the motor, more of a problem for the rearend's
Money for the water pump and underdrive pulley is your money for a complete cam swap (cam springs pushrods) anywhere from 30rwhp on up w/ headers.
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05-03-2009, 11:44 PM #3
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- Feb 2006
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- U. S And A Greatest country in all of world
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Stock- 2002 Camaro
my rear is holding up ok....... for now
02 SS
LQ9 408 Stroker ,M6 1LE, LT's, ORY, GMMG, STG2 LS6 heads,248/254 .612/.622, Tubular LCA's, Panhard, torque arm, tranny cross-member, upper and lower a-arms, k-member, 3 point SFC's, Baer 6 pistons up-front, stock rear , Adj. coil-overs,
12.6@120MPH
81 Celica
18.1 @ 85MPH
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05-04-2009, 12:07 AM #4
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05-04-2009, 06:23 AM #5
- Join Date
- May 2009
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- Toronto
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- 1,083
SOM- 2002 SS
Thanks guys. I'll pass on the waterpump and pullies for sure. I was thinking to go with 1.8 roler rockers and fresh valve springs just to make sure when I rev her out I'm not floating anything. Plus I believe the 1.8s should add just about 5-10 hp at least.
Stock rockers are roller tip 1.7 right? or full roller?
does my 01 have the ls6 manifold ?
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05-04-2009, 07:32 AM #6
- Join Date
- Oct 2006
- Location
- St. Clair Shores. Michigan
- Age
- 55
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- 1,602
Navy Blue Metallic- `98 Formula M6 HdTp
Craig
Semi Retired Street Racer
2012 Lava Red Mustang GT Coupe Brembo/3.73's
Build Date 3/17/11, Last Lava Red GT
Gone but not forgoten
NBM `98 Formula M6 HdTp
1 of 1 Build Date 3/12/98
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05-04-2009, 08:30 AM #7
- Join Date
- May 2009
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- Toronto
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SOM- 2002 SS
I was thinking to do the rockers first I will definitely want them if I do a cam or more mods in the future. the motor has 118k miles so I am already planning a very mild stroker rebuild perhaps next summer so maybe the cam can wait. I have just heard some horror stories over the years and many people preaching that the stock rockers are just not reliable with cams or strokers.
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05-04-2009, 09:11 AM #8
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05-04-2009, 09:15 AM #9
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05-04-2009, 12:06 PM #10
Here this thread should help w/ your rocker setup question.
http://www.ls1tech.com/forums/genera...8-rockers.html
Again here is the electric water pump and rockers
http://store.summitracing.com/egnsea...838996&NeXID=5
though they did not have the right size you could expect to pay $380 for these new
http://store.summitracing.com/egnsea...115+4294745456
underdrive pulley
http://kentucky-speed.com/9802-fbody...a128577f0f2015
$620+380+200=$1200 us dollars I can only imagine what it costs for you. If you knew you were going to spend this you have more than enough for a head and cam swap. Or just do the cam swap
cam=300 pushrods=100 valvesprings=200 oil pump=185timing chain=50
hurts when you see the #'s before you huh?
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05-04-2009, 05:55 PM #11
Actually, there was a post in AAG about a month or two ago. The guy's friend owned a dyno and they dynoed after every mod to his car. The best bang for the buck on his set up was the Underdrive Pulley. His car gained 12.9 rwhp and around 18 ft-lbs of torque. They were all done on the same dyno with little variences to weather and humidity. I wish I could dig up the post but it was AWESOME. Showed every mod all the way to full bolt ons with a dyno after every one to show progress.
┌∩┐(◕_◕)┌∩┐
Man: The Mods you are fighting,
they are the biggest Men I have ever seen. I
wouldn't want to fight them!
Me: That is why no one will remember your name!
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05-04-2009, 06:59 PM #12
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05-04-2009, 11:08 PM #13
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05-04-2009, 11:13 PM #14
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05-04-2009, 11:14 PM #15
- Join Date
- Feb 2006
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- U. S And A Greatest country in all of world
- Posts
- 3,384
Stock- 2002 Camaro
oh and i LOVE my UD pulley!!!
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05-04-2009, 11:52 PM #16
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05-05-2009, 01:32 AM #17
- Join Date
- Feb 2008
- Location
- Palm Beach, FL
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- 46
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- 1,702
440 RWHP / 410 TQ- 2000 SLP CAMARO SS
Some one correct me if I am wrong, but should't his first mod be LT headers! I would think he would gain the most from them, expecially being that he is going to to do all those other mods also.
2000 SLP Camaro SS M6 * 515 HP TrickFlow Package * FAST 92 MM Intake * Nick Williams 92 MM TB * Volant CAI * Granatelli MAF * Full Custom True Dual Exhaust with X-Pipe * Tuned by Breathless Performance
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05-05-2009, 01:34 AM #18
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05-05-2009, 03:08 AM #19
GM High Tech Performance (last month) has a write up on wakin up a tired LS1. The mentioned roller 1.8's ....
04 C5 A4 Torch Red - sold
2009 CTS4 Ice Black - sold
2013 1500 Silverado Z71 - sold
02 Z/28 M6 Onyx Black All Options - Sold
2014 Caddy CTS4 - DD
2016 Silverado 2500HD
2020 Caddy XT6
2020 2SS Vert
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05-05-2009, 07:28 AM #20
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