1968 Camaro radiator handle 900hp? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 10-15-2003, 05:05 PM
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1968 Camaro radiator handle 900hp?

I have a griffin radiator(600hp) in my 68 camaro right now wth th zz502....it works fine but i am putting a motor tat will make a litle oer 800hp init soon and i think i may need to chaneg the radiator, but be cool only makes them upto 700hp....i think i would liek one rated at 900 for a lil more insurance but cant seem to find one....will that griffin be ok? the new motor is a pumpgas 555, and my 502 is roughtly at 540hp now, its onyl 160hp but i want to make sure...any help is grateful thanks
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Old 10-15-2003, 05:11 PM
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Sorry, can't answer your question. But in case you decide to sell your radiator, please let me know. Here is my email address:
darom@no_spam_for_me.sbcglobal.net (please take out the antispam statement).

Btw, does it have the built-in tranny cooler?

Thanks!
Denis
67 Camaro RS
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Old 10-15-2003, 05:40 PM
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I don't see that the size of the rad has anything to do with anything.....
The cooling of the rad depends on how long you plan on running this motor. Top fuel dragsters (6000hp) have NO rad at all.
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Old 10-16-2003, 03:51 PM
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yeah i know this is going to be a street car...fri nite sat nite cruiser, sun race car i dont really go far with it, and i only take it out at night so the traffic dies down, las night it was prob 55-60 degress and the car hit 170 cruisn at a light it hit 190........o and to that first reply, no it oesnt have a built in cooler, we mouted a huge external one outside the radiator support.
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Old 10-16-2003, 06:07 PM
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You can never have too much radiator. That is like saying you have too much brakes. Keeping your temp down is very important if you are running higher compression. When you are above 10.5:1 compression and you are running too hot, you are opening the door to detonation.
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Old 10-16-2003, 06:31 PM
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Yeah i know, i am cutting it close the motor is 10.5:1, but i am gunna have to try it, if not the becool is rted for another 100hp, if not i guess i will have to search around for a place that will make a custom monster one for me, or some other kidn of cooling trick.
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Old 10-16-2003, 11:28 PM
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That`s a lot of horses for a 10.5:1 engine. I`m running two different 502s using 454 radiators with no heating problems.

I have a 355 SB 12.0:1 that dinos 500+ with a griffin 4 core in a 69 camaro, with no heating problems.

190 is a normal operating temperature.

Griffin will make what ever you want.
And so will USA radiators
www.portellradiator.com also custom builds radiators.

uneed, please use the spell check, it will make reading your post easer, thanks.

TROY
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Old 10-17-2003, 12:59 AM
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imho you might wanna save the money for tranmissions and rearends with that kind of hp and usage. just my .02
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Old 10-17-2003, 07:34 AM
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sorry about the spelling, the car is prostreet, it has a 12bolt, with a strange spool, billet caps, richmond gears, moser 35splines, heavy duty yoke, and the TA adjustable cover, the tranny was a FB (th400 with the super rare screw for the center support to make it stronger) unit that me and my father went over again at our tranny shop, we put in blue line clutches, kevlar bands, reverse manual valve body, and we have a set of planetary gears for a box truck, they are straight cut and wine like a ***** and it also has our other special tricks with a superbell, it has a ladderbar(all fresh heiman joints and track locater) with qa1 coilovers, and the whole nine yards, the front and back are completely tied together and it has a 10point car to the Frame, the car and drivetrain wil handle it.

and for the motor it is a 555 10.5:1, Dart 360 with a heavy port and polish job, merlinII block Callie's magnum pro crank, crower buillet rods, JE pistons, gapless rings, and a comp cam solid roller, .270 @.50 duration and the lift is around .720 i dont have the cam card infront me, jesel shaft rocker, it has a ported and potmatched 4500series victor junor with a chuck nuytten dominator that is in the mail as i type this.
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Old 10-17-2003, 08:41 AM
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How about posting some pictures of your car.
I like to admire lots of good engineering

Troy
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Old 10-17-2003, 04:03 PM
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yeha sure i got a couple of pics of the car on the computer, i have a better quality pics, but this one has the tires up on my street tires with the 502 init, i was using a sportsman pro tire


i just tried to upload it n said it was too big even after being compressed with winzip, how else can i send it?
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Old 10-17-2003, 04:34 PM
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Resize the photo or increase the JPEG compression.
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Old 10-17-2003, 07:25 PM
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i tried i dont know much about computers...it says its 455 KB (466,371 bytes) compressed, and i tried resizing it but it cut out half the pic, can i double compress an image? or if you want pics i might be able to send you a pic
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Old 10-17-2003, 10:07 PM
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Send it to Jon's e-mail and copy and paste the link to this page so he knows where to put it and he can post it for you, love to see your wheels.
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Old 10-18-2003, 07:09 PM
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here it is with the stock zz502 init, the best tiem to date is street tire-11.38 at 117.7 and on slick, 11.21 at 118.6 the pic is with the street tires

thanks for resizing the pics for me
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