All 408 n/a strokers' times
08-05-2007, 03:34 PM
#1
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All 408 n/a strokers' times I am working on a 408 strokes for my a4 fbody. I was wandering what other similar people are running with these larger motors. I knows it will vary with h/c combos and all but after it is all done it should be at500 to the wheels and 500 tq. Just wondering if anyone with similar numbers had some track times
08-05-2007, 05:30 PM
#2
might not be exactly what you are looking for but my 402 NA with a th400 and 9" with 4.11s put down 476/526 to the wheels. The car is about 3250 race weight. Best time of 10.4 @ 130. In the summer weather it runs about 10.6-10.7 @ 127-129 depending on weather and track prep.
08-05-2007, 05:30 PM
#3
well my 6sp heavy non 60ft car and a na 502hp-490tq at the wheels pulls 11.30s at 125s. with crappy 1.75 60s. gettin a auto to 500 hp and tq is gonna need a trick match of parts im think. can be done thats for sure. id say an auto and mid 3500-3600 lb car and 500 500 your lookin at 10.50-10.80 range dependin on suspension and stuff
08-06-2007, 06:01 PM
#4
Originally Posted by Formula_Power
I am working on a 408 strokes for my a4 fbody. I was wandering what other similar people are running with these larger motors. I knows it will vary with h/c combos and all but after it is all done it should be at500 to the wheels and 500 tq. Just wondering if anyone with similar numbers had some track times
did you just get this motor from alabama?
08-06-2007, 08:18 PM
#6
Originally Posted by Formula_Power
yea this is coby's motor. hopfully should be here Wednesday
yep, I thought so.. I was the ohter guy praying you backed out
o'well good luck with it. I hope its everything I wanted it to be 
....let me know what it does in that bird I know it was bad *** in that vett.I seen it in person!! Last edited by Ego Killer; 08-06-2007 at 09:33 PM.
08-06-2007, 08:29 PM
#7
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Yea i will keep everyone updated with results. It should be installed this weekend and then tuned sometime next week/weekend so i should get numbers sometime then
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08-07-2007, 12:42 PM
#14
Originally Posted by Formula_Power
538 hp out of an auto is really good what cam are you using. Mine has a 244/248 610/613 113 cam with 225 etp heads
I'm running a custom HKE selected grind 248/252 112+2 with 5.3 ltr heads that have been extensively massaged by Greg Good. SCR is 11.8:1 with no detonation sensitivity issues. It'll take 28-29* of timing, but it runs the same ET with 26* so that's where we leave it.
08-07-2007, 01:25 PM
#15
408ci, patriot stage 3 LS6 heads, 244/248 612/615 113, Junk 4l60e, TCI 3500, FAST 90/90, untuned went 11.40's @ 126 mph. Motor was setup for the bottle but i changed my mind. The CR is 10.7-1 right now. Made two passes then the trans blew. I havent been back since tuning, and the 4l80e swap. Should be real low 11's or High 10's. The car is full weight with AC and the only thing removed is the spare.
08-08-2007, 05:13 AM
#19
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for all you guys with auto in your strokers what size stall did you go with. I have a 244/248 610/613 113 cam. I have a 4k in it right now. Is that going to be too much
08-08-2007, 08:56 AM
#20
I have a 5800 in mine, but I think it's a little too loose. Depends on the weight of the car... there's no universal converter that just works.... if you want to get 100% out of the car, you'l probably have 2 or 3 different converter's in the car, or at least restalling it a few times before you get it perfect.