Comp Engineering Front Motor Plate
01-22-2009, 10:07 PM
#21
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I'd be interested in the opinions to run both as well. I know folks running around 2000 HP with just plates. One guy told me the mounts put alot of stress on the side of the block with the potential to break or crack it so this is interesting to see the different opinions.
BTW, I found another plate here aeicnc.com. Does anyone make one that utilizes the extra holes made in the LSX block for motor plates? I'm looking for both front and mid plates now.
BTW, I found another plate here aeicnc.com. Does anyone make one that utilizes the extra holes made in the LSX block for motor plates? I'm looking for both front and mid plates now.
01-22-2009, 10:10 PM
#22
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Price is $245 from summit.
Again this is a bad *** piece if you arent afraid of fabbing things up. The Madman plate is much nicer for a bolt on and go (almost). I plan to have my BMR alternator brackets milled to compensate for the plate thickness, and have that area waterjet cut.
Sorry for the pics stupid blackberry
Again this is a bad *** piece if you arent afraid of fabbing things up. The Madman plate is much nicer for a bolt on and go (almost). I plan to have my BMR alternator brackets milled to compensate for the plate thickness, and have that area waterjet cut.
Sorry for the pics stupid blackberry
01-22-2009, 11:46 PM
#23
I work for a Performance shop in Arlington Tx. We have a car that runs in the street renegade making over 2000hp at the fly, we run motor and mid plates for strength and for header clearance with 2 1/4" primaries we need all the room we can get, and turbo cars making big power have big pipes so clearance is an issue there too. We go low 7's in the 1/4.
01-23-2009, 07:20 AM
#26
I would be taking the motor mounts off so the stress isn't put on the side of the cylinder casing.
FWIW the motor plate I am running is pretty much the same as the madman setup, except it's one piece with about a 1/2 inch of material across the top holding the 2 sides together as one piece, it's held on by the 6 waterpump bolts, and I put a torsional support on so the motor won't want to move foreward/backwards, attached that to teh a/c bracket holes. I don't have a midplate, next car will, but this one does not.
700 hp and it's been fine, no problems at all. No motor mounts, and headers fall in and out with ease.
Top fuel cars, all the outlaw cars I have seen and most of the race stuff from my local fab guy's shop run a motor plate and a mid plate, no motor mounts.
Once you put the plate on the front and back of the motor, there's no need for a motor mount anymore.
FWIW the motor plate I am running is pretty much the same as the madman setup, except it's one piece with about a 1/2 inch of material across the top holding the 2 sides together as one piece, it's held on by the 6 waterpump bolts, and I put a torsional support on so the motor won't want to move foreward/backwards, attached that to teh a/c bracket holes. I don't have a midplate, next car will, but this one does not.
700 hp and it's been fine, no problems at all. No motor mounts, and headers fall in and out with ease.
Top fuel cars, all the outlaw cars I have seen and most of the race stuff from my local fab guy's shop run a motor plate and a mid plate, no motor mounts.
Once you put the plate on the front and back of the motor, there's no need for a motor mount anymore.
01-23-2009, 08:59 AM
#28
One of the reasons for the plates and no motor mounts is to stop the motor mounts from jerking the cylinders out of shape on launch and gear changes.
1500+ hp Pro Stock cars only use motor plates, as well as any professionally built race car. SS, Comp, etc. I can't imagine anybody that actually knows anything running both. Somebody needs to go to a real race and cruise the pit area.
1500+ hp Pro Stock cars only use motor plates, as well as any professionally built race car. SS, Comp, etc. I can't imagine anybody that actually knows anything running both. Somebody needs to go to a real race and cruise the pit area.
02-02-2009, 12:01 PM
#36
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Im pretty sure that Fireball only runs plates. I know he is well past the 1000hp mark with low boost.
I know for a 100% fact that Bruce Maichles TransAm in NMCA Prostock uses only plates on his BBC 4th Gen. Part of the reason to use motor/mid plate setup is to give clearance for headers, etc. It also stops any block flex that may occur with stock location mounts.
I know for a 100% fact that Bruce Maichles TransAm in NMCA Prostock uses only plates on his BBC 4th Gen. Part of the reason to use motor/mid plate setup is to give clearance for headers, etc. It also stops any block flex that may occur with stock location mounts.
