Torque Plate/Non-Torque Plate|Need builders input.

[wranglerunner22]

Please engine builders input only

Im getting to the point where Im ready to bring my block and everything to the machine shop. Getting a TQ Plate made aroud here costs the same as buying one...I even have the file made up and still no luck.

So, how many miles do you guys have on your motors? With and without TQ Plates?

My Max HP is going to be ~500, and for now it will only be around ~350


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Im getting mixed opinions on using a plate. Everything I have read on Dsm forums say both ways. (Use it bla bla bla) (Don't bother bla bla bla).

One builder in my area says if your shooting for high numbers use one, but don't worry about it if your staying around or less than 500.

Lets here your thoughts.

 

[bryanwheat]

I have never used one in the 13 years that i've been building these. Never had a single problem. It really isn't related to horsepower in any way. It's all about the how the cylinders deform when you bolt the head to them.

 

[arrowhead]

To be honest I have not rebuilt a g motor w/ H/P in mind with a torque plate, they were regular street engine rebuilds.

If I was going to do a H/P rebuilt on any other type of engine I always used the torque plates, I dont know how much difference it would make on these engines since the block looks pretty stout, I guess it would depend how much you have invested in your motor and what use it will see.

It would give me a little more peace of mind to have it done with the plates.

Cylinder distortion does have an effect on reliability and also on H/P on race motors.
By race motor I am referring to the ones that only see track duty, not a dual purpose or a street motor.

 

[viperlp01]

http://www.dsmtuners.com/forums/cyl...-2-head-studs-block-cylinder-deformation.html

If you are serious and don't want to just throw these engine together than you want to torque plate it. We torque plate every 4g63 we build. The link above shows how much a block deforms even with cold iron. We used a torque plate to get these values.

 

[BogusSVO]

Using a torque plate is for getting perfect ring seal,it elimanates another varaiable in bore distortion.

We are talking about tenths of one thousand of one inch.

If a torque plate is readily avaiable then use it.

Unless you plan on building 3 or more engines, then it is not cost effective to buy or have made a torque plate.

 

[JacksonAuto]

Never had a single problem. It really isn't related to horsepower in any way. It's all about the how the cylinders deform when you bolt the head to them.

It does have an affect on HP. On a block that was not plate honed, the cylinders will deform when the head is torqued and this will affect the sealing of the rings. Less ring seal=less HP. The purpose of the plate is to take the deformation into account when the cylinders are honed so when the head is torqued in place the cylinders are still concentric

If you dont use a plate not only are the cylinders out of spec, but they're not round either.

 

[99gst_racer]

^^^ Agreed.

A torque plate is worth using if you want your cylinders to be straight and round when the head is torqued down.

Consider buying one and selling it for $50-100 less after you use it. That way your engine benefits from it's use and you recoup most of your funds.

 

[BogusSVO]

^^^ Agreed.

A torque plate is worth using if you want your cylinders to be straight and round when the head is torqued down.

Consider buying one and selling it for $50-100 less after you use it. That way your engine benefits from it's use and you recoup most of your funds.

Or Call around your local shops and see if they have one, and check with the supporting vendors and send your block to them to do what is needed.

 

[JacksonAuto]

Or take it to a shop that has a plate. Then you'll know that they've got experience with 4G63's.

 

[BOOSTIN21]

wranglerunner,
this is GRCRY GTTR from the WiDSM forum. In my build thread on there, I went through the same decision. For me and my goals with the car, it was extra piece of mind. So I went to C&S Performance in Butler, WI and we had a torque plate made up for the 4G63 motors. I split cost with them on it so that others in the area could have the option in the future as well.
Contact them. They did awesome work on my motor and they did stellar work when they built Jake Hanhardts motor.

Best of Luck

 

[wranglerunner22]

After seeing all of the Pros on here suggest using a plate, I am going to do so, also.

Boostin21,
I am about 5 hours away from Butler so that is out of the question, unfortunatly.


The shop that has built 4g's in my area don't carry a 4g plate. They have a room of torque plates, but none for a dsm.. LAME!

Maybe ill seek out a few more job-shops in my area to see what they will charge to make one, considering I have the .dxf for it.

 

[JacksonAuto]

Shipping a block via FedEx is surprisingly cheap

 

[wranglerunner22]

Shipping a block via FedEx is surprisingly cheap

This is true.