Speed Inc 408ci / 12bolt / TH400 dyno numbers
02-08-2005, 04:32 PM
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Speed Inc 408ci / 12bolt / TH400 dyno numbers Got my car back last week, only drove it home (7 miles) and for about 5 mins this weekend. Have not gone WOT yet until it breaks in, but you guys have no idea how much low end torque this thing has
Anyway, the LS1 GOD's at speed inc managed to squeeze 458rwhp / 532rwtq
this is through full exhaust, TH400 trans, 12 bolt
Anyway, the LS1 GOD's at speed inc managed to squeeze 458rwhp / 532rwtq
this is through full exhaust, TH400 trans, 12 bolt 
02-08-2005, 04:46 PM
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sick looking numbers. you'll have a huge smile the first time when you get on it. just sit back and hold on. how does it sound, alot different than the 346ci.?
02-08-2005, 08:35 PM
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Originally Posted by MeanWS6
Got my car back last week, only drove it home (7 miles) and for about 5 mins this weekend. Have not gone WOT yet until it breaks in, but you guys have no idea how much low end torque this thing has
Anyway, the LS1 GOD's at speed inc managed to squeeze 458rwhp / 532rwtq this is through full exhaust, TH400 trans, 12 bolt
Anyway, the LS1 GOD's at speed inc managed to squeeze 458rwhp / 532rwtq
this is through full exhaust, TH400 trans, 12 bolt
02-08-2005, 09:59 PM
#7
Mean,
Your results are one of the few I've seen here where your torque rating is higher than the HP. This is typcial of Gen I/II small blocks. What's the HP/TQ RPM's?
What makes this combo different than the rest here which seem to all be low on TQ?
--JMarsa
Your results are one of the few I've seen here where your torque rating is higher than the HP. This is typcial of Gen I/II small blocks. What's the HP/TQ RPM's?
What makes this combo different than the rest here which seem to all be low on TQ?
--JMarsa
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02-09-2005, 09:36 AM
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Originally Posted by jmarsa
Mean,
Your results are one of the few I've seen here where your torque rating is higher than the HP. This is typcial of Gen I/II small blocks. What's the HP/TQ RPM's?
What makes this combo different than the rest here which seem to all be low on TQ?
--JMarsa
Your results are one of the few I've seen here where your torque rating is higher than the HP. This is typcial of Gen I/II small blocks. What's the HP/TQ RPM's?
What makes this combo different than the rest here which seem to all be low on TQ?
--JMarsa
02-09-2005, 03:36 PM
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Very nice Ryan. Back in the day when I had an ARE 422ci, I did 450 unlocked and 475rwhp locked. I did 505rwtq locked. I went 11.02 so I'm sure your car is sick fast.
Nice meeting you last month at Speed Inc.
Nice meeting you last month at Speed Inc.
02-09-2005, 04:42 PM
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Originally Posted by 01-Z
Maybe they didn't go WOT on the dyno if it wasn't broken in? 
Dynoing is one thing, on the street is another. I'm not going to drive it and get on it - just yet. My cooler is not cooling the Th400 so I am taking it back for a larger cooler soon Same to you John - Nice to put a face with a name.
02-09-2005, 05:29 PM
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Originally Posted by ONEBADWS6
it's because the car has a TH400 and there is no lock up with a TH400
02-09-2005, 05:51 PM
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Originally Posted by maddboost
Precision Industries offers a lockup kit and converter for the TH400.
02-11-2005, 08:22 AM
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Originally Posted by maddboost
Precision Industries offers a lockup kit and converter for the TH400.
There stuff is to inefficent and they never got the stall right after 3 times. I'll keep my TCT.
02-11-2005, 09:11 AM
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nice numbers. I'll be getting my 408 running soon.....wat kind of intake/exhaust setup are you running?
I would like to see similar numbers through my 4l65e bu tim still running the stock intake, for the exception of the filter....
yeah i know, that is the FIRST thing to go besides the subframes...
I would like to see similar numbers through my 4l65e bu tim still running the stock intake, for the exception of the filter....
yeah i know, that is the FIRST thing to go besides the subframes...
02-11-2005, 12:06 PM
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Here are answers to everyones questions:
Heads: Custom ported RGR heads
Dyno: Dynojet
Converter: 4K TCT, trans-brake on TH400
Cam: 242/250 .611/.619 114+2
Intake: FAST 90mm; TPIS 90mm TB
Exhaust: SLP headers (swaping to Kooks); full exhaust w/ cutout
Heads: Custom ported RGR heads
Dyno: Dynojet
Converter: 4K TCT, trans-brake on TH400
Cam: 242/250 .611/.619 114+2
Intake: FAST 90mm; TPIS 90mm TB
Exhaust: SLP headers (swaping to Kooks); full exhaust w/ cutout