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Old 12-17-2008, 04:59 PM   #1
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how much will i pick up on a 250 shot?

if the car is running 10.00 on motor how much time should i cut off when i spray a 250 shot? the car is built well so more hp wont spin the tires. i know it is a very broad question.
i am only looking for a guess...or an "about"
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306, AFR's, S-trim 15 lbs, C4 w/brake 3500 stall, spooled

6.6@101 1/8 mile 1.4 60ft

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Old 12-17-2008, 05:24 PM   #2
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too many factors here.. But one thing is for sure, you will end up picking the crankshaft up off the ground is your tune up is off!
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Old 12-17-2008, 06:07 PM   #3
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its a carbed motor with plenty of gas, and retard the timing, will use a wideband setup also, and will start small and work up 100, 175, then 250

oh and it not the setup in the sig its a built dart 347
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306, AFR's, S-trim 15 lbs, C4 w/brake 3500 stall, spooled

6.6@101 1/8 mile 1.4 60ft

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Old 12-17-2008, 06:35 PM   #4
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250 hp
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Old 12-17-2008, 06:41 PM   #5
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lol "time" was the key word in the first post
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306, AFR's, S-trim 15 lbs, C4 w/brake 3500 stall, spooled

6.6@101 1/8 mile 1.4 60ft
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Old 12-17-2008, 07:19 PM   #6
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My car runs 10.60's on motor. 300 shot runs 9.05-9.10 Still looking for an 8.anything
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Old 12-20-2008, 12:30 AM   #7
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Really depends on the cam and head set up. Depending how well the flow numbers are on the exhaust side you could be low nines to 8.50's. Also, at the hit or later....or progressive? Just need a bit more info.
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Old 12-20-2008, 10:46 AM   #8
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if its not friendly nos cam then it will not pick up much at all, but if the cam likes it then you will like it, also, deff start low, i have seen cars that went like crazy on a 50 shot, but anything bigger and they hardly reacted to it..
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Old 12-20-2008, 11:37 AM   #9
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like others said, it dependes on the setup. my 377 is a nitrous motor and runs 10.40's n/a i put the 150's in it and it went 9.24@144 are 8's on 200 possible? it would be awsome!!
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Old 12-20-2008, 12:02 PM   #10
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Back in the day a buddy of mine had a 90' coupe,3250lbs,
carbed 418w,
canfields,.700+ solid roller,
Glide w/brake and 4.10s, 28x10.5 slicks.

It went 10.30's-.40's on motor and it went 8.80's with a 250 shot NOS Fogger kit. 5.57 1/8th. 1.25 60ft

It also went 9.40's on a 100 shot NX plate kit.
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Old 12-20-2008, 12:55 PM   #11
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What kind of engine combo you have to run those numbers? I've got the same but can't run those numbers
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Old 12-20-2008, 02:55 PM   #12
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do you have a dedicated fuel system for the n2o? and is it a plate kit or fogger?
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Old 12-20-2008, 02:56 PM   #13
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single stage or 2 stage?
auto or stick?
tire size and rear gear ratio?
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Old 12-21-2008, 02:36 PM   #14
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A friend of mine his car went 11.60's on motor & 8.68 on a 250 shot, this motor was built for the spray only as u can tell by the numbers. Dart block 434 ci with a custom cam & a set of fully ported vics jr's
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Old 12-21-2008, 07:59 PM   #15
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Quote:
A friend of mine his car went 11.60's on motor & 8.68 on a 250 shot, this motor was built for the spray only as u can tell by the numbers. Dart block 434 ci with a custom cam & a set of fully ported vics jr's
I have a friends car like that. 11.00 on motor and 8.6Xs with nitrous. On motor the car is a dog, but spray it and it screams.
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Old 12-23-2008, 12:26 AM   #16
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12.80 to 10.70 on a 200. Yep....motor, trans, hell the whole thing is a nitrous set up except the 235 60 tires.
And Lawrence.....I know of which car you speak. Definately a nitrous pig like me.
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Old 12-23-2008, 12:46 AM   #17
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I would guess on averages, you will be low 9's, maybe a high 8 if you have a nitrous converter, and def a high8 with a glide and nitrous converter.
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Old 12-23-2008, 11:14 AM   #18
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A 347 running 10.00 is most likely more setup for n/a performance. You need to be certain that the motor is setup for a big shot of nitrous, meaning rings gapped properly, very exhaust biased cam, big heads, tight converter, etc...

You don't just slap a 250 shot on a motor and expect it to run good. Anything over a 150 shot, the motor really needs to be setup to handle it.

All that said, my 427 is setup for more n/a performance and has been 10.37 on motor at 131. I'd expect to run 9.60-9.80 on a 100 shot and be out of gear on the top end.

All that said, take that Dart 347, with big heads/intake and nitrous cam, with about a 4500-5000 rpm stall and 7500 rpm shift point, and it could run in the 8s on the 250 shot.
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