Questions about Drag Radials? - Team Camaro Tech
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post #1 of 12 (permalink) Old Jun 8th, 03, 11:20 AM Thread Starter
 
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Well this week I am gonna order a new tranny(Tremec TKO) so I don't grenade my Saginaw 4-speed when I put Drag Radials on. My question is how much should I expect Drag Radials to drop my 1/4 mile time?

Right now with a 355 with world s/r (1.94/1.5) heads and a 205/[email protected] cam and 3.42s I run a [email protected] with a 2.29 60ft time(which sucks!). What is the ideal 60ft time for my set-up? I was thinking 1.8 or so but that might be wishful thinking...I'd be estatic if I could get a 13.99 just with the slicks.

Also, can I expect Drag Radials to hook up even with clutch drops at 2,500+rpms? I'm currently looking at the Nittos. Thanks for the help guys
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post #2 of 12 (permalink) Old Jun 8th, 03, 02:27 PM
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Do you have any traction devices or anything? It's hard to say if your cars going to hook at all if you're just running a stock rear susp.

I'm not sure about the Nitto's but I know of guys that run well into the 8's with the BFG's. [img]graemlins/thumbsup.gif[/img]

Rockin' 4-wheel drums since 1969.
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post #3 of 12 (permalink) Old Jun 8th, 03, 02:32 PM Thread Starter
 
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I just put in new 5-leaf rear springs with new bushings, bolt in subframe connectors, and welded the axle tubes....no traction bars or anything but if I have a problem I'll throw some SSMs on there.
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post #4 of 12 (permalink) Old Jun 8th, 03, 02:49 PM
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I am currently running a siomular combo and I pull a 1.8 60 on MT ET Drags. I was running 2.4 60's on street tires so the slicks helped a ton. You should be able to get a 1.9 or 2.0 60 ft anything after that would be gravy. Just to let you know I run mid 13's on my combo.

69 Camaro RS, 383ci,10.5-1 AFR 195's ported, Comp 286HR, 4340 forged Crank & Rods, JE Pistons, RPM Airgap, Holley 750 HP carb, 350 turbo w/ shift kit, 3000 Coan, Be cool, caltracs,12bolt 355 eaton posi..Best E.T. 12.22 @ 112

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post #5 of 12 (permalink) Old Jun 8th, 03, 02:58 PM
 
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bfg's work great when they are BALD
and you don't dare drive in rain w/ them or mt et's

NITTO
i have several timeslips w/ 1.6x sixty foot times, 245/50/16s on the stock head/cam 3.23 geared 94 Z28

they make a super sweet 275/50/15
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post #6 of 12 (permalink) Old Jun 8th, 03, 03:46 PM Thread Starter
 
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Thanks guys!

69CamaroRacer- How much did your ET improve when going from a 2.4 60ft to the 1.8?
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post #7 of 12 (permalink) Old Jun 9th, 03, 06:48 AM
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FWIW 1 tenth reduction in the 1st 60' is typically worth 2 tenths off your total ET. So if you go from a 14.7 with a 2.29 down to a 1.90 60 foot, your ET should drop well over 1/2 a second. You should have enough MPh to get high 13's in my opinion.

I had trouble getting my Drag Radials to hook once I got solidly into the 12's. The side walls are stiff which makes it easier to break loose when you shock them with all that TQ during launch. They should be good well into the 13's for you though.

E85 racer and E85 carb builder

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68 Camaro, E85 powered 427" small block. 9.96 @ 133 MPH, 1.319 sixty foot on motor. 5.92 eighth @ 116 with a 1.42 sixty breaking beams with back tire on the bottle
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post #8 of 12 (permalink) Old Jun 9th, 03, 05:12 PM
 
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was always told the rule of thumb is .1 off the 60 is a solid .15 off the ET, but I'd say .2 off the ET is attainable

94 Z is my "racer" lol so it's my example car
.27 off 60' netted .47 off ET (this was after torque converter swap, stock to vigilante, no other changes)

btw my 00 is wearing 315/35 nitto drags, they just look awesome and gave zero problems on the trip to PA and back last month
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post #9 of 12 (permalink) Old Jun 9th, 03, 05:15 PM
 
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more, yes I don't know when to stop sometimes [img]graemlins/clonk.gif[/img]

Pris, girlie w/ 00 formula, has run 11.6 on nittos, 1.5x sixty foot, 245/50/16s, running 15psi @ track, drives on em all the time
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post #10 of 12 (permalink) Old Oct 29th, 05, 06:24 AM
 
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Re: Questions about Drag Radials?

I recently swapped from Hoosier Radial slicks 30x9x15's to MT Drag radials 295/65/15...best 60ft with slicks was 1.51-1.52,,,last sunday, on a 49* sunny day I was 60 ft'ing 1.52-1.53 with the MT drag radials, they flat hook.
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post #11 of 12 (permalink) Old Oct 29th, 05, 07:40 AM
 
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Re: Questions about Drag Radials?

Now why was this moved to wheels n tires? more performance oriented if you ask me, no wonder the performance minded folks come over to TC for answers.
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post #12 of 12 (permalink) Old Oct 30th, 05, 06:58 PM
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Greg
 
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Re: Questions about Drag Radials?

allshow...the M/T drag radials are the way to go if you want a radial. One of the mags this month had a tech questions and a rep from M/T responded. Unfortunately he said that the radial won't work well at all with a stick car. A wrinkle wall ET Street is what he recomended.fwiw.

By the way...I am in the market for leaf springs. Is yours a 69? Which brand did you go with and how is the ride height?

Thanks!

69 Camaro, 3650lbs., 400ci, TH400, Coan 10" converter, 3.50 gear
D1SC, pump gas, street car, Water/Meth injection
1.302 60', 5.956 @ 116.4 Super Sniper EFI 2019
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