Go Back   LS1TECH > VEHICLE SPECIFIC FORUMS > Corvette Performance
Sign in using an external account
Register Forgot Password?
Search

Corvette Performance
C5 | Z06 | C6 | ZR1
Sponsored by
Corvette Central
Click Here

How much power am I leaving on the table???

Reply
 
Thread Tools Search this Thread
Old 04-02-2012, 07:16 PM   #1
Staging Lane
 
00byrd's Avatar
 
Trader Rating: 14
Join Date: Feb 2004
Location: alabama
Posts: 94
Default How much power am I leaving on the table???

2002 z06 car made 505/466. Its a TSP 427 ls3,callies crank,callies rods ,weisco pistons, PRC stg 3 ls6 heads,TSP ls7s 242/250 .650/.650, kooks 1 7/8, kooks off road x pipe,.......Car still has factory ls6 intake, throttle body and ti catback.....Car drives great and has PLENTY of power.(not sure if I even want to mess with it) Wondering how much power I am leaving out there (est.)? Also what catback are most people running? Thanks
__________________
1999 Pontiac T/A old 346 H/C th350 moser 9"
new sdpc 402 iron l92/l76

1995 s10 5.3 NX plate, victor jr., eps 222/234,holley 850,t56, ls7 clutch, 8.8" 3:73

1965 olds F85 355sbc 5200 PTC

2002 z06 TSP 427 ls3
00byrd is offline   Reply With Quote
Old 04-03-2012, 08:19 AM   #2
10 Second Club
 
RickClarke23's Avatar
 
Trader Rating: 4
Join Date: Oct 2006
Location: Bishop,Texas
Posts: 201
Default

The catback probably is only costin you about 5hp. The intake/TB however probably around 15-20.
__________________
2002 Z06

Stock bottem end 346 Ysi 11psi-10.6@138 @2200DA and 665rwhp

9xx rwhp...no times
RickClarke23 is offline   Reply With Quote
Old 04-03-2012, 09:34 AM   #3
Teching In
 
Trader Rating: 0
Join Date: Nov 2010
Location: Indiana
Posts: 27
Default

Quote:
Originally Posted by RickClarke23 View Post
The catback probably is only costin you about 5hp. The intake/TB however probably around 15-20.
Agree!! is it possible that the heads are a little weak too? Maybe get Trickflow 235's? I don't know a whole lot. Just asking.
Brdlvr is offline   Reply With Quote
Old 04-03-2012, 12:45 PM   #4
Staging Lane
 
00byrd's Avatar
 
Trader Rating: 14
Join Date: Feb 2004
Location: alabama
Posts: 94
Default

Thats great news on the catback....I really like the sound of it and also no drone so prob. gonna leave it.
__________________
1999 Pontiac T/A old 346 H/C th350 moser 9"
new sdpc 402 iron l92/l76

1995 s10 5.3 NX plate, victor jr., eps 222/234,holley 850,t56, ls7 clutch, 8.8" 3:73

1965 olds F85 355sbc 5200 PTC

2002 z06 TSP 427 ls3
00byrd is offline   Reply With Quote
Old 04-03-2012, 02:35 PM   #5
DBN
8 Second Club
 
DBN's Avatar
 
Trader Rating: 6
Join Date: Nov 2004
Location: Knoxville, TN
Posts: 549
Default

The factory titanium catback is the best bang for the buck. I tested it verses an open exhaust and only lost 3hp. Keep it. As mentioned above, the heads, camshaft, intake, and TB are probably the power restriction at this point. If you don't want to change heads and/or camshaft at this time, at least go with a ported GM LS7 intake or FAST and at least a 90mm TB. I used to run a camshaft that was very close to the specs that you listed. I replaced it with a custom grind from my engine builder and changed nothing else, and picked up 40 hp and 40tq across the rpm range. Also, make sure that your tune is good. To answer your question as to how much power you are leaving on the table; probably 90hp and 60tq judging from the 427 that I used to have. However, you will spend quite a bit of money to add this much power to your engine. I would just change the intake and TB and see if you want to go further.

Last edited by DBN; 04-03-2012 at 02:40 PM..
DBN is offline   Reply With Quote
Old 04-03-2012, 03:23 PM   #6
Staging Lane
 
sugey's Avatar
 
Trader Rating: 0
Join Date: Jul 2011
Location: Port Saint Lucie Florida and Honduras
Posts: 53
Default

Between your intake and exhaust I would say 50+ whp
__________________
Living in Honduras and Florida
The Z06 stays here....
sugey is offline   Reply With Quote
Old 04-03-2012, 03:51 PM   #7
TECH Fanatic
 
marc97taws6's Avatar
 
Trader Rating: 6
Join Date: Sep 2008
Location: DSM
Posts: 1,392
Default

Sounds like a very mild build indeed for the cubes.

Cam, heads, intake/TB.

However, comes down to the driveability factor. If you like what you have now, why risk driveability? Definitely intake/tb could gain some power and not sacrifice that. A lot of it is in the tune as well
__________________
2013 SGM Mustang GT A6 - Bolt on 5.Br0
marc97taws6 is offline   Reply With Quote
Old 04-03-2012, 04:04 PM   #8
TECH Apprentice
 
Silver408z's Avatar
 
Trader Rating: 1
Join Date: Jan 2010
Location: Arlington, TX
Posts: 345
Default

I gained 31 rwhp and think it was like 24 rwtq going from a stock ls6 and ported TB to a ported 102 and NW 102 TB on my 408
__________________
01 Zo6, HKE 408, TFS 225's, Fast 102/102, Nitrous outlet 102 plate kit, 700 rwhp / 700 rwtq
Silver408z is offline   Reply With Quote
Old 04-04-2012, 03:58 AM   #9
Teching In
 
RamAirTA's Avatar
 
Trader Rating: 2
Join Date: Jan 2007
Location: Home Of The Show Stopper. APK, FL
Posts: 35
Default

A friend of mine (FastorangeZ) had a near identical setup on his '01ZO6 as you have now. Changed to cnc'd LS7 heads with a ported LS7 intake with 90mm TB. Made 540rwhp through the Ti and 572rwhp with the cutouts open. The Ti is a good system but after 500hp, it starts to choke. So to answer your question, you have a considerable amount of power left on the table.
RamAirTA is offline   Reply With Quote
Old 04-04-2012, 08:52 PM   #10
Staging Lane
 
00byrd's Avatar
 
Trader Rating: 14
Join Date: Feb 2004
Location: alabama
Posts: 94
Default

PRC stage 3 LS6 Heads at .600 intake 324cfm exhaust 230cfm
__________________
1999 Pontiac T/A old 346 H/C th350 moser 9"
new sdpc 402 iron l92/l76

1995 s10 5.3 NX plate, victor jr., eps 222/234,holley 850,t56, ls7 clutch, 8.8" 3:73

1965 olds F85 355sbc 5200 PTC

2002 z06 TSP 427 ls3
00byrd is offline   Reply With Quote
Old 04-07-2012, 07:57 AM   #11
ctd
TECH Enthusiast
 
Trader Rating: 1
Join Date: Sep 2007
Location: Sicamous, BC
Posts: 576
Default

Sounds like a stout combination! The dyno seems to be very accurate as well, some numbers from other builds are to good to be true.

A Fast 102/102 would probably surprise you with the gains....fussy to tune as well.

I've been digging in to cylinder heads the last few months, one thing I have learned, flow numbers & heads are not the complete story.

Here is a link that test some of the heads mention in your thread including the TEA LS6 heads. Check out the Pro Comp LS1 heads & compare them flow numbers to the big guy's.

http://www.hotrod.com/techarticles/e...t/viewall.html
ctd is offline   Reply With Quote
Old 04-07-2012, 07:57 AM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply


Tags
427, clutch, cr, crank, factory, fit, heads, l92, ls1tech, ls6, piston, power, rods, t56, weisco


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 On
Refbacks are Off



Join Ls1Tech

All times are GMT -5. The time now is 07:18 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details