MX Motor Options

[eastside 400]

Here's 3 different setups that i can go with this winter, Pick what one is the best and please explain why, im searching for a decent gain and to last 1 race season. Also, will i need valve springs with this

1. Baldwin 14:1 piston with MX Cam and Hetrick Porting.

2. Sparks/JE 13.5:1 piston and drop-in cam and Hetrick Porting.

3. JE 13.5:1 piston and Hetrick MX cam and Hetrick Porting.

The only reason for Hetrick porting for all 3 is because that they are the cheapest i can find so far, on their site they say $175 so i can actually afford it.

[Scro]

Well, I don't have any experience with Baldwin or Sparks, but I can say that I have had very good luck with my JE 13.5-1. Seems to be very reliable.

[450r51]

i can get my porting done for only eighty bucks, if ur near buffalo new york. there a specialty engine company, they do a pretty good job.

[R3Concepts]

Originally posted by bama450r
Well, I don't have any experience with Baldwin or Sparks, but I can say that I have had very good luck with my JE 13.5-1. Seems to be very reliable.

Then you have had good luck with Sparks...JE does not make a shelf 13.5:1..Either its really 13:1 or its a Sparks.

[Airik79mx]

What ever you get done I would get it all done by the same place. If you send your head to Baldwin he would port it, do the valve job, and shim the valve's. It would be ready to go and you pay shipping once. You can use stock springs/valve's with his set up also.

[benwa450r]

JE 3-ring shelf piston is 13:1 Sparks 2-ring is 13.8:1 with Sparks head gasket or 13.5:1 with Honda gasket. I have had no problems with Sparks 2-ring piston.

[Jersey450R]

does your 2 ring burn a little oil?

[Ripitupfilms]

((((What ever you get done I would get it all done by the same place. If you send your head to Baldwin he would port it, do the valve job, and shim the valve's. It would be ready to go and you pay shipping once. You can use stock springs/valve's with his set up also. ))))


yeah but it will cost a butt tone of money

[Airik79mx]

Quality cost money.

[R3Concepts]

Originally posted by atvracer9m
((((What ever you get done I would get it all done by the same place. If you send your head to Baldwin he would port it, do the valve job, and shim the valve's. It would be ready to go and you pay shipping once. You can use stock springs/valve's with his set up also. ))))


yeah but it will cost a butt tone of money

Guess run time means nothing.:ermm:

[Ripitupfilms]

you sure because a couple engine builders i know can do the same thing for half the cost plus ive had a couple top quality engine built by a couple big name builders and have had nothing put problem but i must say the baldwin engine i had was fast and lasted the longest out of all of them

[2006trx450r]

Sparks is the ****