 |
10-10-2009, 05:20 PM
|
#1
|
Join Date: Apr 2008
Location: Brick
Posts: 149
|
I know why my car is slow
Ive been a little disappointed with the "off the line " performance on my LS1 .I thought I had 3:23's because of the "1" on the gear indicator ,,I was wrong . Its a GU2 code (2:73's) .But Im actually happy about it . This explains a lot . Now Ive got to order a set of 3:73's and wake this thing up . 
Last edited by FASTEDDIE Z; 10-10-2009 at 06:46 PM.
|
|
|
|
10-10-2009, 10:05 PM
|
#2
|
Join Date: Dec 2004
Location: Browns Mills NJ/ Rotondo West FL
Posts: 3,054
|
I thought all the cars w/ the "1" on the indicator were 323 cars...
__________________
AI HCR 241's , Lunati 223/236 .615/.626 114+2 , Full Exhaust , Ported Fast 92 , Ported LS2 TB , Veraram , 85mm MAF , Circle D 4000 , 3.42's , GTP 36# , CSP Dyno tune. More on the way
420 HP/367 TQ on a Unlocked Converter & still climbing.
|
|
|
|
|
10-10-2009, 11:59 PM
|
#3
|
Join Date: Oct 2008
Posts: 814
|
strange to hear..I feel the off the line performance in my SS is incredible for a dam near stock car. Maybe the 6 speed gives it a different feel?
__________________
Formerly known as njbadaSS
|
|
|
|
|
10-11-2009, 02:18 AM
|
#4
|
|
11 Second Club
Join Date: Feb 2008
Location: Edison, NJ
Posts: 4,620
|
Quote:
Originally Posted by njbadaSS
strange to hear..I feel the off the line performance in my SS is incredible for a dam near stock car. Maybe the 6 speed gives it a different feel?
|
Yes it does.
My 2.73 geared LS1 felt like a dog to a 3.23 LS1... both auto cars.
__________________
1999 Z28 Convertible. 6 speed swap, wide cowl hood, full hockey stripes, and a whining 10 bolt.
2008 Sierra Vortec Max. 6.2 swapped, headers, Magnaflow catback, GMPP CAI, NHT optioned tow package.
2006 GTO, 11.48 @ 118.3
|
|
|
|
|
10-11-2009, 02:52 AM
|
#5
|
Join Date: Apr 2008
Location: Delran
Posts: 6,785
|
yeah six speeds come with like a 3:4x gear ratio stock. i had no problems with my 2:73 geared autos that i had getting off the line. the six speed does pull noticably harder....but those 2:73 cars are nasty on the highway 
|
|
|
|
|
10-11-2009, 08:59 AM
|
#6
|
Join Date: Apr 2008
Location: Brick
Posts: 149
|
Quote:
Originally Posted by MonmouthCtyAntz
I thought all the cars w/ the "1" on the indicator were 323 cars...
|
Thats what I thought .But at speeds over 30 mph my car will kickdown into 1st when I stomp it . I figured something was up . So I checked the build code . GU2 
|
|
|
|
|
10-11-2009, 11:02 AM
|
#7
|
|
11 Second Club
Join Date: Feb 2008
Location: Edison, NJ
Posts: 4,620
|
Quote:
Originally Posted by Eddie D.
Ive been a little disappointed with the "off the line " performance on my LS1 . I thought I had 3:23's because of the "1" on the gear indicator ,,I was wrong . Its a GU2 code (2:73's) .But Im actually happy about it . This explains a lot . Now Ive got to order a set of 3:73's and wake this thing up . |
LT1 cars maybe... my 99 Z28 has 1,2,3,D, with 2.73's.
__________________
1999 Z28 Convertible. 6 speed swap, wide cowl hood, full hockey stripes, and a whining 10 bolt.
2008 Sierra Vortec Max. 6.2 swapped, headers, Magnaflow catback, GMPP CAI, NHT optioned tow package.
2006 GTO, 11.48 @ 118.3
|
|
|
|
|
10-11-2009, 11:04 AM
|
#8
|
|
12 Second Club
Join Date: Aug 2004
Location: West Milford
Posts: 8,373
|
my 98's got 1,2,3,D.. was stock with 2:73's, now ive got 3:42's... before u upgrade make sure u get the correct gears for a series 2 carrier, i made the mistake of finding a good deal only to find out they were for a series 3
__________________
88 Camaro
95 Impala SS
97 Trans Am WS6
98 Blazer ZR2
00 Corvette
04 CTS-V
04 Grand Cherokee
06 GMC Sierra
07 Sublime Charger Daytona
12 Tahoe LT
17 Malibu LT
Last edited by maroman88; 10-11-2009 at 11:04 AM.
|
|
|
|
|
10-11-2009, 11:08 AM
|
#9
|
|
10 Second Club; Has fan club
Join Date: Dec 2005
Location: Delmont nj
Posts: 4,369
|
you can tell by looking at the sticker on the inside of the door GU2=2.73 GU5=3.23 GU6=3.42
__________________
01' Z06 62k miles. Vararam, Longtubes, off road xpipe, tuned by me. Times TBA
2001 Corvette, Bolt ons , tuned 10.75@124.56 mph 1.38 60' Sold
1997 Saturn Sc1 5spd DOHC swapped
Bolt ons, decked head, stock intake cam on exhaust side, lotsa weight redux
13.22@102.32 mph 1.93 60'
12's on moda? One day
Last edited by 98tadriver; 10-11-2009 at 11:09 AM.
|
|
|
|
|
10-11-2009, 03:19 PM
|
#10
|
Join Date: Jul 2008
Posts: 485
|
Quote:
Originally Posted by Eddie D.
Ive been a little disappointed with the "off the line " performance on my LS1 .I thought I had 3:23's because of the "1" on the gear indicator ,,I was wrong . Its a GU2 code (2:73's) .But Im actually happy about it . This explains a lot . Now Ive got to order a set of 3:73's and wake this thing up . |
3.73s will definately wake it up alot i remember when i put mine in....had a lot of fun with my car that day
|
|
|
|
|
10-11-2009, 04:36 PM
|
#11
|
Join Date: Dec 2004
Location: Browns Mills NJ/ Rotondo West FL
Posts: 3,054
|
Yea the gearing definately makes a huge differance. I remember when I had my 97z I test drove 2 new 98 TA's to find out what the whole houpla was w/ this new LS1 lol. One was a 323 car and it felt great....the other was a 273 and I couldnt believe what a dog it was down low...I was comming from a stalled/gear'd LT1 but still....Definately throw some 373's in there and it'll be a whole new car
__________________
AI HCR 241's , Lunati 223/236 .615/.626 114+2 , Full Exhaust , Ported Fast 92 , Ported LS2 TB , Veraram , 85mm MAF , Circle D 4000 , 3.42's , GTP 36# , CSP Dyno tune. More on the way
420 HP/367 TQ on a Unlocked Converter & still climbing.
|
|
|
|
|
10-31-2009, 08:22 PM
|
#12
|
Join Date: Oct 2009
Posts: 443
|
Quote:
Originally Posted by MonmouthCtyAntz
Yea the gearing definately makes a huge differance. I remember when I had my 97z I test drove 2 new 98 TA's to find out what the whole houpla was w/ this new LS1 lol. One was a 323 car and it felt great....the other was a 273 and I couldnt believe what a dog it was down low...I was comming from a stalled/gear'd LT1 but still....Definately throw some 373's in there and it'll be a whole new car |
Wow! With those 2.73's the motor must have been under 2000 rpm at 65. Going from 2.73 to 3.73 is about a 37% increase in rpm. So if the engine was turning 1800 at 65mph, w/2.73, it will be turning at 2466 rpm with the 3.73's. Just something to keep in mind. And your fuel economy will take a real hit too.
But you sure will be able to smoke em!
|
|
|
|
|
11-01-2009, 01:07 PM
|
#13
|
Join Date: Nov 2008
Location: NJ
Posts: 244
|
Quote:
Originally Posted by Mark42
Wow! With those 2.73's the motor must have been under 2000 rpm at 65. Going from 2.73 to 3.73 is about a 37% increase in rpm. So if the engine was turning 1800 at 65mph, w/2.73, it will be turning at 2466 rpm with the 3.73's. Just something to keep in mind. And your fuel economy will take a real hit too.
But you sure will be able to smoke em!
|
What's that? Is it like VTEC!?
__________________
04 GTO M6
LS6/Cam 407/378
12.3 @ 116 (need traction)
06 WRX Limited 5MT
20G-XT/FMIC/TBE (low boost) 345/334
93 Camaro Z28 A4 -SOLD! 13.8 @ 102
|
|
|
|
|
11-01-2009, 01:16 PM
|
#14
|
|
Power Member/NJFBOA Bookie/Moderator
Join Date: Jun 2009
Location: North Jersey = Best Jersey.
Posts: 4,435
|
I'm getting about 75 miles to a tank less than when I was stock  At this point, how much worse could it get with 3:73
OP- yeah, I was disappointed when I found out I had 2.73 and not 3.23s too. Oh well, at least you know that it can be upgraded.
|
|
|
|
|
11-01-2009, 04:09 PM
|
#15
|
Join Date: Apr 2008
Location: Brick
Posts: 149
|
Quote:
|
OP- yeah, I was disappointed when I found out I had 2.73 and not 3.23s too. Oh well, at least you know that it can be upgraded
|
EXACTLY !! I went through the freaking traps in 2nd GEAR !
__________________
1998 CAMARO Z28 A4*STOCK *STALLED & GEARED *
|
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
|
|
