490/570 H/C/N2O through TH400
02-17-2010, 09:03 PM
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490/570 H/C/N2O through TH400 Had my car dynoed last week and it made 433RWHP/489RWTQ on motor and 490RWHP/570RWTQ on spray. Mods are: TR custom cam speced by predator-z, TSP-PRC 5.3 stg 2.5 heads, TH400, custom 4000 stall by FTI, TNT F2, 3.73 gears, LS6 intake and Full bolt-ons.
I would like to thank Mark "Predator-z", Patrick G "TR", John Janz "TSP", Greg "FTI" and every one support me.
Pretty happy with the numbers since it was through TH400 with 4K stall, 3.73 gears, stock hi mileage bottom-end(170K miles) and 18" wheels. What do you think guys?
I would like to thank Mark "Predator-z", Patrick G "TR", John Janz "TSP", Greg "FTI" and every one support me.
Pretty happy with the numbers since it was through TH400 with 4K stall, 3.73 gears, stock hi mileage bottom-end(170K miles) and 18" wheels. What do you think guys?
Last edited by SUPER_CHEVY; 02-19-2010 at 09:03 AM.
02-18-2010, 07:27 PM
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02-18-2010, 07:36 PM
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The TQ jumped high when it hits 4K this was due to the 4K stall and the nitrous was activated on 4K too, I'm thinking to advance it a little to ~4100-4200 rpm to make a gap between the nitrous and the stall. What do you think?
02-18-2010, 07:54 PM
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It supposed to be 100 shot but I surprised of it even the tuner asked me if I'm sure that it is a 100 shot, the previous owner of the kit told my that the jets on it is a 100 and he gave me the 200 and the 300. I have to check them again if they really 100 jets or not. the problem that TNT is out of the business and I don't know how could I check the size of the jets since I don't have the specs cards.
02-19-2010, 07:45 AM
#10
It supposed to be 100 shot but I surprised of it even the tuner asked me if I'm sure that it is a 100 shot, the previous owner of the kit told my that the jets on it is a 100 and he gave me the 200 and the 300. I have to check them again if they really 100 jets or not. the problem that TNT is out of the business and I don't know how could I check the size of the jets since I don't have the specs cards.
If it doesnt the tune isnt close.
Regardless of the kit anything with 100 shot should NOT make 57hp.
Something is not right, post up the jetting.
02-19-2010, 08:44 AM
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Im gonna check the jets tomorrow and ill post it here.
Do you think theat the problem might be on the tune or what??
02-19-2010, 09:12 AM
#14
NA numbers are strong. Cam is a good nitrous grind. I suspect low bottle pressure or blowing through the converter on nitrous.
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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.
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2023 Corvette 3LT Z51 soon to be modified.
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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
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
02-19-2010, 09:47 AM
#15
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Thanks Patrick, I have the bottle heater but it was not plugged yet, Do you think that I'm gonna see a reasonable gains if its on the bottle? And regarding the blowing through the converter, how could I solve this issue in you opinion?
Last edited by SUPER_CHEVY; 03-01-2010 at 12:07 PM.
02-19-2010, 08:28 PM
#16
I read the link. I dont believe that you can blow through that converter on the jug with 100. We spray those converters all the time with 300-400. we have bean 8.70's in an f body with the same converter with a 440 lsx and 400 kit weighing 3200 with a 373 gear. the torque numbers are good because the converter multiplies torque. I would suggest it may be in the tune or tire spin on the dyno. generaly a dyno wont show all of the hp because of converter slip and no transfer of momentum although I would expect to see a bigger number than 57 if the jets and tune are correct.
Greg
Greg
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FTI COMPETITION CONVERTERS AND TRANSMISSIONS
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FTI COMPETITION CONVERTERS AND TRANSMISSIONS
"IT'S NOT CHEATING, IT'S THE COMPETITIVE EDGE."
1-866-726-8358
info@ftiperformance.com
FTIPerformance.com
FTI Converter build sheet
02-21-2010, 09:15 PM
#17
Can you post up a dyno chart of the run? That could tell us alot more about where the missing power might be. It could be that the intake/exhaust is too restrictive, that engine needs to breathe. But a dyno chart will tell us more...
