Dyno results - poor parts combo?
10-05-2009, 01:27 PM
#21
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there is a GTO in florida with the same heads 59cc, F14 cam, ported FAST 92, 92mm tb, kooks, ud pulley, that made 466rwhp/422rwtq.
so, if you are decide on the bigger cam, well...
so, if you are decide on the bigger cam, well...
10-05-2009, 03:01 PM
#22
Definitely on the low side. The cam only cars I do are typically in the 410-420rwhp area with stock 241 castings and LS6 intakes.
As stated, you have budget heads and a relatively small cam. TQ curve looks good though.
Don't spend another $2000+ on heads. Just throw a $400 NX kit on it and hose the bitch with a 100 shot.
As stated, you have budget heads and a relatively small cam. TQ curve looks good though.
Don't spend another $2000+ on heads. Just throw a $400 NX kit on it and hose the bitch with a 100 shot.
10-05-2009, 11:26 PM
#24
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you might have to reconsider then. maybe a stroker?
here is the link to that graph, i figure i post the link instead of just bringing the pic of his graph.
GTOdyno graph
10-06-2009, 08:25 AM
#26
i'm running those same 2.5 heads/233/239 cam/lt's/FAST and put down 431 hp and 391 tq. With budget heads I thought they performed well. I didn't expect big numbers like heads costing $1300 or more.
10-06-2009, 09:08 AM
#27
Ironically, this thread was recently posted. There are people using a stalled auto and a 9" rear end or TH400 making the same numbers as me. I've got a M6/10-bolt.
Also, the parts in this thread are significantly different enough for me to lose 30rwhp and 30rwtq peak?
- heads are the same
- cam is a 239/242 111LSA
- Kooks stepped headers w/o cats
I had requested stepped headers, but George at ARH told Mike Norris that there was no benefit for using stepped headers for my size motor so we went with the normal headers. So can just the stepped headers and cam cause this sizable difference?
Also, the parts in this thread are significantly different enough for me to lose 30rwhp and 30rwtq peak?
- heads are the same
- cam is a 239/242 111LSA
- Kooks stepped headers w/o cats
I had requested stepped headers, but George at ARH told Mike Norris that there was no benefit for using stepped headers for my size motor so we went with the normal headers. So can just the stepped headers and cam cause this sizable difference?
Last edited by JimMueller; 10-06-2009 at 11:21 AM.
10-06-2009, 12:30 PM
#29
Did a compression test last April, to try to confirm poor Fast92 gains over the LS6 intake. Thread is here. Wanted to try to eliminate any mechanical problems before having the car tuned. Never did a leakdown test though. It does burn some oil but the catch can seems to be doing it's job.
10-07-2009, 01:27 PM
#33
10-07-2009, 02:06 PM
#34
First of all, for a set of AFR 205's to cost $3500, they must come with some really trick hardware. I set of CNC AFR 205's with standard hardware will cost you just a hair over $2,200.00 and will perform with the correct cam. I just saw a set that were sold in the classifieds for $1900 and they were hand worked by Tony so keep an eye out. Lot's of deals out there right now.
12-02-2009, 01:47 PM
#37
So this fella has a 9" compared to my 10-bolt, same 'budget' TSP 5.3 heads and chamber size, cam with a bigger split, he doesn't have AC, dyno'ed at Texas Speed...
https://ls1tech.com/forums/dynamomet...-dynotune.html
He has 30rwhp and 30rwtq over me...why? His torque curve is wider and peak power is also higher. WTF is wrong with my motor?
https://ls1tech.com/forums/dynamomet...-dynotune.html
He has 30rwhp and 30rwtq over me...why? His torque curve is wider and peak power is also higher. WTF is wrong with my motor?
12-02-2009, 02:32 PM
#38
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i have those heads with a 232/238 6xx 6xx 111lsa cam and ported fast 90/90..When it had a 3500 stall and stock 3:23 it put down 435rwhp and 407rwt
Added a 4400 stall,and 3:73 gears (wich both rob "dyno" numbers) and now dyno 426rwhp
Hope this helps you out
Added a 4400 stall,and 3:73 gears (wich both rob "dyno" numbers) and now dyno 426rwhp
Hope this helps you out
12-02-2009, 04:26 PM
#39
Numbers look good to me for the setup.
I'm seeing this more and more where, if someone doesn't make 400+ with a cam only setup or 450+ with a heads/cam setup, then they immediately think there's a problem somewhere. You have to look at what cam and what heads were used (along with supporting mods) like everyone in here is saying.
I'm seeing this more and more where, if someone doesn't make 400+ with a cam only setup or 450+ with a heads/cam setup, then they immediately think there's a problem somewhere. You have to look at what cam and what heads were used (along with supporting mods) like everyone in here is saying.
12-02-2009, 04:52 PM
#40
Jim,
I think it comes down to the fact that some dynos are stingier than others. The important thing is looking at the delta from where you were before the mods to where you are now...on the same dyno. Chances are good that some of those 460rwhp dyno runs on happier dynos would only put out 430rwhp on yours. It happens. I hate stingy dynos. They can make you hate your combo even when there's nothing wrong with it.
I think it comes down to the fact that some dynos are stingier than others. The important thing is looking at the delta from where you were before the mods to where you are now...on the same dyno. Chances are good that some of those 460rwhp dyno runs on happier dynos would only put out 430rwhp on yours. It happens. I hate stingy dynos. They can make you hate your combo even when there's nothing wrong with it.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.