Just got dyno'd and guess what.
03-31-2011, 03:42 PM
#1
Melting Slicks
Thread Starter
Just got dyno'd and guess what.
I've been running 20hp down!!! 
I've been running at a min weight of 3200, but typically 3270 to be safe for the dyno... Just dynod this morning w/ a max of 350... Time to pull some weight
This bodes well for me.
I've been running at a min weight of 3200, but typically 3270 to be safe for the dyno... Just dynod this morning w/ a max of 350... Time to pull some weight
This bodes well for me.
03-31-2011, 03:55 PM
#5
Safety Car
How many years has that LS6 been raced now... 6+ or there abouts right? How many miles are on it now?
You've got longtubes and an air intake right? If so you're about 30-35 horse down on a fresh one with intake, headers, tune.
Still pretty awesome to see the motor working given the high rpm beating you subject it to.
You've got longtubes and an air intake right? If so you're about 30-35 horse down on a fresh one with intake, headers, tune.
Still pretty awesome to see the motor working given the high rpm beating you subject it to.
03-31-2011, 04:03 PM
#6
Melting Slicks
Thread Starter
How many years has that LS6 been raced now... 6+ or there abouts right? How many miles are on it now?
You've got longtubes and an air intake right? If so you're about 30-35 horse down on a fresh one with intake, headers, tune.
Still pretty awesome to see the motor working given the high rpm beating you subject it to.
You've got longtubes and an air intake right? If so you're about 30-35 horse down on a fresh one with intake, headers, tune.
Still pretty awesome to see the motor working given the high rpm beating you subject it to.
03-31-2011, 04:05 PM
#7
Safety Car
Just make sure your tuner is a good road race tuner... too many people get these cars tuned with a tailpipe sniffer, then destroy #7 cylinder from going lean.
03-31-2011, 04:10 PM
#8
Melting Slicks
Thread Starter
So 6 years baby... that's great. So you're on the factory tune? but have LTs etc? If so, then yeah you probably have at least 15 horse on the table. Plus I'm not sure if you run 93 or 100, but if you run 100 and tune for it you can make even more.
Just make sure your tuner is a good road race tuner... too many people get these cars tuned with a tailpipe sniffer, then destroy #7 cylinder from going lean.
Just make sure your tuner is a good road race tuner... too many people get these cars tuned with a tailpipe sniffer, then destroy #7 cylinder from going lean.
we are waiting for you to come SCCA STO racing with us!
03-31-2011, 05:56 PM
#10
Melting Slicks
Thread Starter
03-31-2011, 09:23 PM
#13
Racer
Member Since: Mar 2006
Location: Duluth GA.
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Well lets see...............
I hold the Road Atlanta SCCA STO track record: 1.29.016
You hold the Road Atlanta NASA TTS track record: 1.29.620
SCCA only counts laps during a race for towards a track record.
My fastest qualifying lap is a 1:28.414, the fastest STO qualifying lap at Road Atlanta is Jerry Onks at 1:28.1.
So......I'd say when you get that extra 20rwhp back (
) you should be right there>>>>don;t ya think?!!!!
I hold the Road Atlanta SCCA STO track record: 1.29.016
You hold the Road Atlanta NASA TTS track record: 1.29.620
SCCA only counts laps during a race for towards a track record.
My fastest qualifying lap is a 1:28.414, the fastest STO qualifying lap at Road Atlanta is Jerry Onks at 1:28.1.
So......I'd say when you get that extra 20rwhp back (
) you should be right there>>>>don;t ya think?!!!!
03-31-2011, 10:47 PM
#15
Melting Slicks
Thread Starter
I'm going to dyno at Mid O on friday next week to verify this result. Then I'll decide what to do.
04-01-2011, 01:00 AM
#17
Melting Slicks
6 yrs is about exactly how long James' motor survived in this atmosphere before it broke 3 rods at RA...suprising how tore up that motor was for nothing leaving the block.
Horsepower does seem low Wally....Have you ever put a new set of valve springs in that thing ??...might help some, if that is what you want to do...probably wouldn't hurt to put a new timing chain in it too...
Look forward to seeing you next weekend @ Mid-Ohio. At least one blue car should be there.....(not mine)
Horsepower does seem low Wally....Have you ever put a new set of valve springs in that thing ??...might help some, if that is what you want to do...probably wouldn't hurt to put a new timing chain in it too...
Look forward to seeing you next weekend @ Mid-Ohio. At least one blue car should be there.....(not mine)
04-01-2011, 07:21 AM
#19
Le Mans Master
Member Since: Oct 2007
Location: Akron Ohio
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2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
Im pretty sure you dont need anymore power Wally! 
Competitors be ware.
Competitors be ware.
04-01-2011, 09:18 AM
#20
Safety Car
6 yrs is about exactly how long James' motor survived in this atmosphere before it broke 3 rods at RA...suprising how tore up that motor was for nothing leaving the block.
Horsepower does seem low Wally....Have you ever put a new set of valve springs in that thing ??...might help some, if that is what you want to do...probably wouldn't hurt to put a new timing chain in it too...
Look forward to seeing you next weekend @ Mid-Ohio. At least one blue car should be there.....(not mine)
Horsepower does seem low Wally....Have you ever put a new set of valve springs in that thing ??...might help some, if that is what you want to do...probably wouldn't hurt to put a new timing chain in it too...
Look forward to seeing you next weekend @ Mid-Ohio. At least one blue car should be there.....(not mine)
You can get the OEM yellow springs (2002-2004 Z06) for around $60 a set and last I checked a LS2 timing chain was like $38 and it's a good bit beefier than the LS6 chain.
The only thing I'd like to change that I haven't is the lifters.... don't care to pull the heads, but will probably do that this coming winter...
@Danny - Any issues replacing lifters on a 121K mile motor if not putting in a new cam? I know some people swear a cam/lifters become a matched set, but I don't see how that could really be the place as lifters do go bad from time to time.
