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new combo at the track

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Old Jul 22, 2007 | 07:14 PM
  #1  
bitchin85camaro's Avatar
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From: buffalo
Car: 85 camaro
Engine: 327
Transmission: 350, 6200 stall, w/ brake
Axle/Gears: soon to be strange 5.14
new combo at the track

finally got to take my car to the track... a little dissapointed and excited at the same time, couldnt hook it all day untill the last run of the day, and yanked the tires a foot off the ground. but i wasnt expecting it and was so excited and shifted like a moron and ran a slower time. my 60 ft's are pitiful. im wondering if im running too much gear? 5.14's is alot. but i think it comes down more to the torque converter stall. im thinking drop it down to about 4300-4500. currently its at 6200. its a blast, but i think its too much and it might actually be slowing me down? anyways heres my best slip ( a tad embarresed too.
.56 rt
1.87 60ft <-- needs to be trimmed
5.38 330 ft
8.33 1/8 mile at 83 mph
now the suspension is mostly stock except for a spohn torque arm and cross member. any ideas you guys can help me out with. i was hoping to break 7's im also wondering if its just not there? afterall its just a 331
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Old Jul 23, 2007 | 02:39 AM
  #2  
WheelsUp84z's Avatar
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From: currently Jacksonville NC
Car: 91 z28
Engine: 383 sbc, 88mm turbo a2w IC, CSU 750
Transmission: th-400 PTC 4000 stall
Axle/Gears: ford 9" 3.55 gear
Re: new combo at the track

6200 stall and 5.14 gear..... you must be spinning about 8500 rpms, whats combo are you running? im assuming thats through a PG..
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Old Jul 23, 2007 | 09:10 AM
  #3  
bitchin85camaro's Avatar
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From: buffalo
Car: 85 camaro
Engine: 327
Transmission: 350, 6200 stall, w/ brake
Axle/Gears: soon to be strange 5.14
Re: new combo at the track

motor spins about 8300-8500. its a 327 crank in a 30 over 350 block, nice roller cam, alum heads, high rise manifold, 750 demon carb. everyone gives me there its only a 331 not enough cubes to make good power but it feels strong to me. i know theres more ET in the car, just not sure if i need to tone the converter down. i think the gears are perfect, im going thru the traps at about 5500, tach is a smidge un-reliable. but my first thing is going to be to have that converter tightened up. 4500 ish???
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Old Jul 23, 2007 | 11:22 AM
  #4  
xpndbl3's Avatar
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: new combo at the track

stall should be just below or at peak torque for your engine, you'd need a dyno to pick that out. Also what slicks are you running? I used to get 1.6 60' with a 305 and a 150 shot out of the hole on 3.73 and 26" slicks with a 3500 stall.
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Old Jul 23, 2007 | 03:04 PM
  #5  
bitchin85camaro's Avatar
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From: buffalo
Car: 85 camaro
Engine: 327
Transmission: 350, 6200 stall, w/ brake
Axle/Gears: soon to be strange 5.14
Re: new combo at the track

28 x11.5 on a 8 inch wide rim
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Old Jul 23, 2007 | 08:44 PM
  #6  
plumminfool's Avatar
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From: Georgia
Car: 1988 camaro sport
Engine: 355
Transmission: 5 speed
Axle/Gears: Ford 9 inch - 4.11 gears
Re: new combo at the track

I set my car up to go through the traps at max rpm. Im no expert, but I think if your engine spins (and still makes power) at 8500 rpm, then you should cross the traps at the same. Just my .02
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Old Jul 23, 2007 | 09:36 PM
  #7  
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From: SC
Re: new combo at the track

something doesnt add up with the trap speed. sounds like its just not making the power upstairs.
that car would go faster with a 3600 stall, comp 280 cam, performer rpm intake, and a set of vortecs. and 4.10s.
but, if the bottom end is setup to turn the rpm like you say it is, i would say get some heads for it like some ported afr 195's or bigger, and a matched single plane intake. and maybe a new cam.
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Old Jul 23, 2007 | 11:23 PM
  #8  
bitchin85camaro's Avatar
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From: buffalo
Car: 85 camaro
Engine: 327
Transmission: 350, 6200 stall, w/ brake
Axle/Gears: soon to be strange 5.14
Re: new combo at the track

ill have to find the paper work on the parts i bought. the motor is built pretty good. big cam, big intake, granted it was on a budget but still.
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Old Jul 24, 2007 | 04:15 AM
  #9  
83 Crossfire TA's Avatar
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Car: 87TA 87Form 71Mach1 93FleetWB 04Cum
Re: new combo at the track

???

Let me see if I have this right… you basically ran the equivalent of a high 12/low13 with an oddball engine combination and enough gear/stall for a dedicated NA drag car that would be running 8’s/9’s NA? You hung the tires a foot in the air?

Sounds like you could go with a lot, I mean A LOT tamer combination and run faster. Lets face it, that engine, with a near stock cam, near stock heads, headers, good exhaust, dual plane, 600cfm carb, 2800stall and 3.73’s will run the same or faster.

What’s your engine combination? What’s your goal? Is this a dedicated race car, street/strip car…?
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Old Jul 24, 2007 | 01:51 PM
  #10  
bitchin85camaro's Avatar
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From: buffalo
Car: 85 camaro
Engine: 327
Transmission: 350, 6200 stall, w/ brake
Axle/Gears: soon to be strange 5.14
Re: new combo at the track

my goal for the car is mid 7's in the 1/8 mile. the guy who made my torque converter said hes going to tighten up a bit. he said its as loose as he can get it, and its hurting my et. also, boxed lower control arms, with relocation brackets. i agree, there are tamer set ups running faster times, i just have to work out the bugs.
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Old Jul 24, 2007 | 10:20 PM
  #11  
88IROC350TPI's Avatar
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From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
Re: new combo at the track

Originally Posted by bitchin85camaro
my goal for the car is mid 7's in the 1/8 mile. the guy who made my torque converter said hes going to tighten up a bit. he said its as loose as he can get it, and its hurting my et. also, boxed lower control arms, with relocation brackets. i agree, there are tamer set ups running faster times, i just have to work out the bugs.
the "bugs" is your entire combination. a 327 has plenty enough cubes to make power. For example, take a 327 with 10:1 compression, throw on a set of Vortecs or other half-decent head, throw in a cam, let's say the XE 274H, an RPM intake, 750 carb, some 3.73's and a 3000-3500 stall. With a very simple and street friendly combo like that you would easily run FASTER than you currently are all while shifting the motor at an easier-on-parts 6000RPM.

But, whatever makes you happy is all that matters.
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Old Jul 24, 2007 | 10:29 PM
  #12  
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Re: new combo at the track

You don’t really have to go _that_ serious to run those times…

That’s about an 11.7@117mph in the ¼. Assuming that the car weighs something like 3600# race weight, you’re talking about 450-460hp, which with your 331 would mean a HP peak around 6400rpm and a torque peak around 4500rpm, meaning you’d need a converter stall slightly less than that, maybe around 4300rpm. >8000rpm shift points??? Really? I don’t really see why you’d need anything more than something between 6500-6800rpm, and assuming that you gear things so that you can run a ¼ you would go through the traps at around 117mph and with your 28” tall tire that works out to a 4.56 gear
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Old Jul 25, 2007 | 06:22 PM
  #13  
bitchin85camaro's Avatar
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From: buffalo
Car: 85 camaro
Engine: 327
Transmission: 350, 6200 stall, w/ brake
Axle/Gears: soon to be strange 5.14
Re: new combo at the track

well the converter is back out, asked to have to brought down to about 4500-4700. he insists on 5000, maybe a little more. that and some boxed lower control arms and relocation brackets and ill be back out to the track. ill be sure to let you guys know the outcome
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