Solid or Poly motor mounts with a 9 second car?
Originally Posted by Camaro_Zach
i dont know how this is an issue honestly. you choose to run an aluminum block and make huge hp, you better back it up. john, count your blocks days. not being a dick when i say this john, but you dont race the car often enough to say your car is a proven solid setup. 2 inches is a **** load of engine movement off a brake makin 800+ rwhp. do we not remember harlan breaking blocks until he went to the motor plate setup and hasnt broken a block since?
i see 500+ rwhp cars at the track with motor plates. any car you race the **** out of, you will break an aluminum block with a t-brake, 2 step, anything, if you race the **** out of the car. give it time. just like cars making 800 rwhp on 93 octane with boost and 9:1 comp. yeah it will do that on the dyno, go drive the car like you stole it for a week, see if it lives for long.
i see 500+ rwhp cars at the track with motor plates. any car you race the **** out of, you will break an aluminum block with a t-brake, 2 step, anything, if you race the **** out of the car. give it time. just like cars making 800 rwhp on 93 octane with boost and 9:1 comp. yeah it will do that on the dyno, go drive the car like you stole it for a week, see if it lives for long.
I have a few hundred passes on my car from the last five years. I also have over 150 dyno pulls on the car.
With the stock mounts, my engine would torque up like 4-5 inches. Have you never seen a stock engine look like it's trying to escape on it's own?
Right now I have at most 2 inches of travel. I can measure it but it's minimal.
I did run a torque strap five years ago, I was one of the first, it made a difference. My old Mac headers would hit the body of the car until I did that.
I never said poly mounts were the best, but they are entirely adequate for me. They are better than stock, and not as good as a motor plate. But a motor plate is a big step for most, don't downplay that.
With the stock mounts, my engine would torque up like 4-5 inches. Have you never seen a stock engine look like it's trying to escape on it's own?
Right now I have at most 2 inches of travel. I can measure it but it's minimal.
I did run a torque strap five years ago, I was one of the first, it made a difference. My old Mac headers would hit the body of the car until I did that.
I never said poly mounts were the best, but they are entirely adequate for me. They are better than stock, and not as good as a motor plate. But a motor plate is a big step for most, don't downplay that.
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Originally Posted by streetbad
What about a torque strap?
I made the mistake of going w/ poly bushings on my car. I'm switching to solid motor and transmission mounts. Breakage shouldn't be an issue w/ aluminum blocks. Hell, factory 5.0 motors hold w/ them.
Did you make the solid mounts for your car Mongse, or did you buy them somewhere? Solid tranny mount is ok in conjunction with solid motor mounts? I seem to recall reading somewhere that you don't want all solid mounts, but I can't understand why not since a motor plate is basically that.
Seems like the motor plate would be real hard to route things with the turbo. I do have an iron block and was just going to plan on using the poly motor mounts with the turbo.
nitrorocket -Yes I run factory rubber mounts on engine and trans. No problems.
nitrorocket -Yes I run factory rubber mounts on engine and trans. No problems.
john, first off you havent been making ~900 hp for "five years". next, getting in the throttle on a dyno at 60mph IS NOT comming off a brake at the line and cutting a 1.2-3 60'. and lastlyi know you never said poly was the best, and im saying they arent even adequate for your application in my opinoin and many others. i dont want to see you break your block but i have a feeling its a good 60ft away from it. esipically with the amount of torque you are making off the line with your blower. i could be 100% wrong, but im going by everything ive observed over the last few years of this board as well as "not fbody" cars at the track. heat + weak metal + having all the pressure on two mounts the size of my fist = not good time.
stroked ls1, well youd think so, but with the motor plate, you have no motor mounts now, therefore you free up ALL the room inbetween the motor and the fenders. you can run it where the AC used to be which is a huge amount of room, and just shoot it straight out the back of the car.
stroked ls1, well youd think so, but with the motor plate, you have no motor mounts now, therefore you free up ALL the room inbetween the motor and the fenders. you can run it where the AC used to be which is a huge amount of room, and just shoot it straight out the back of the car.
Originally Posted by strokedls1
Camaro_Zach- Do you have any pictures of a motor plate on an lsx setup. May have to look into it.
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From: Taking back some video tapes
Originally Posted by Birdie2000
Did you make the solid mounts for your car Mongse, or did you buy them somewhere? Solid tranny mount is ok in conjunction with solid motor mounts? I seem to recall reading somewhere that you don't want all solid mounts, but I can't understand why not since a motor plate is basically that.
I probably could run a plate since all my piping is on top of the motor, but if I did that, I'd want to run a mid plate as well, which means I'd probably need a new converter.
Originally Posted by mongse
I'm going to switch to either an AJE or PA k-member and run the solid mounts from Comp. Engineering.
I probably could run a plate since all my piping is on top of the motor, but if I did that, I'd want to run a mid plate as well, which means I'd probably need a new converter.
I probably could run a plate since all my piping is on top of the motor, but if I did that, I'd want to run a mid plate as well, which means I'd probably need a new converter.
Fastblackta- How long have you been running your combo. Your hooking hard as hell! 
If it will hold that It will hold most setups. Are you running stock rubber or poly?
If it will hold that It will hold most setups. Are you running stock rubber or poly? 100% stock. I was running them last season but with the new setup I'm going to need something different. I don't really recommend it...we experienced a lot of deflection but it worked for us (there is no telling how long they would have lasted).
Last edited by FastBlackTA; Mar 22, 2005 at 09:25 PM.
