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Old 08-29-2013 | 11:17 AM
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hey guys im getting ready to start a build on my 01 trans am a4. i talked to derek at tsp about the build, i want to go with, 408 lq9 with prc 247 heads and texas giant cam. i already have the fast 92/92 and tsp lt 1 7/8. its going to get bolted up with a th400 and custom stall i havent had a chance to talk to anyone about yet. i would like to put a 200-250 shot on the car as well it wont be a dd its only for drag and to shut up some ppl in my town on the street. it will also be gutted and 9 inch put in with slicks. can i get anyone that knows about what kind of numbers ill be expecting or 1/4 et times. i would really want to be able to hit 9s? thanks for the responses guys.
Old 08-29-2013 | 11:55 AM
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Custom grind cam or no cam at all. You have an excellent short block with an excellent set of heads, and you're going to stuff an old as dirt shelf cam in it?.

Do yourself a favor and call Geoff@eps, patg, Martin@tick...whoever, and get a custom cam.
Old 08-29-2013 | 11:58 AM
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thats what i was going to do i was going to go with a pat g cam. i want a big cam and i want it to sit there and lob lol just wanted inputs on any better ideas to go with
Old 08-29-2013 | 12:31 PM
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anyone have any other segestions
Old 08-29-2013 | 07:02 PM
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My 408 with TFS 225s and a turbo 350 in a 3500 pound car ran 10.7s on motor and 9.80s with a 150 shot through a nitrous outlet plate. So I'd say that combo will reach your goals, and then some.
Old 08-29-2013 | 08:21 PM
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What compression are u running
Old 08-30-2013 | 06:43 AM
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I ended up going with 12.5:1 static compression on my 408 with a 255/271 .624/.624 115 lsa cam which gave me a very pump gas friendly 8.22:1 dcr. Did have a 4l60e behind it with a 4, 000 stall and it sounded great and pulled hard as hell all the way to my 8, 000 rpm fuel cutoff.

If that helps.

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Old 08-30-2013 | 07:08 AM
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How many rpms can u turn with a 408??
Old 08-30-2013 | 07:14 AM
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I'm running 13:1 compression and turning it 7200
But I know of another f body running 10.6s on about 11.8:1 compression. It only has the TFS 215s.
Old 08-30-2013 | 07:16 AM
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I jave my fuel cut set to 8, 000 rpms right now...if I ever get the car on a dyno I might raise the the fuel cut to 8, 500 or even 9, 000 rpms if it is still making power.

Its not the engine size, but it's the parts you use inside it that determines the max rpms
Old 08-30-2013 | 07:40 AM
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But is the car with 13:1 running spray??
Old 08-30-2013 | 09:06 AM
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Originally Posted by whiteta01
But is the car with 13:1 running spray??
Yes. Mine ran 10.7s on motor, and 9.7s on a 150 shot.
Old 08-30-2013 | 09:25 AM
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what kind of gear are you guys running with the three speed?
Old 08-30-2013 | 09:38 AM
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I've run the times posted above with a 3.73, and a 4.10 gear. If you are going to be spraying a lot, the 3.73 is the better gear. Not sure of the rpm on the 150 shot, but I upped the shot to 250 for a while. It was running 9.60s @ 140. I believe it was turning about 7000 rpm through the trap's.
Old 08-30-2013 | 11:32 AM
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Originally Posted by Roger Blackmore
I've run the times posted above with a 3.73, and a 4.10 gear. If you are going to be spraying a lot, the 3.73 is the better gear. Not sure of the rpm on the 150 shot, but I upped the shot to 250 for a while. It was running 9.60s @ 140. I believe it was turning about 7000 rpm through the trap's.
thats what im looking for right there
Old 08-30-2013 | 11:40 AM
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Yea, the combo you have listed above should have no problems reaching you goals with drag type bolt on suspension parts.
Old 08-30-2013 | 11:45 AM
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how big of a cam do u have
Old 08-30-2013 | 11:51 AM
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That cam was a hydraulic. 248/256 duration. .602/622 lift. 114+2 lsa. This combo was built in 2006.
Old 08-30-2013 | 11:55 AM
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nice setup. what rear end?
Old 08-30-2013 | 12:00 PM
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Moser 12 bolt. Like stated earlier, 3.73, and 4.10s. It had the Detroit Locker True Trac when I put it in, and I switched over to a spool later on. If your car is going to be track only, I suggest going with a spool from the get. They are cheaper, and lighter.


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