Evo performance upgrade

[4valve]

As well as the above getting the heads skimmed to increase the compression ratio plus a Good! 3 angle valve seat job will make an evo go like stink, & still be reliable, if you decide to change the heads look at the S&S heads they do for 80" street motors they already have all the mods & are very reasonably priced, I'll also reccomend Matts, very helpfull.

[Ade67]

Thanks for the advice, sounds expensive, I will do some digging around.
Regards Ade

[Kiwi]

Originally Posted by simonDyna

If you do go the S&S route I can recommend Matt down in Wales. He can probably help out with other options too.

I am glad somebody can recommend him, I wouldn't and neither would a very good mate of mine who had some work done there recently

[Kiwi]

Originally Posted by Ade67

How easy, what would i need to do?
Ade

points ignition - no rev limiter and better advance curve than standard
mikuni or S&S carb
decent 2 into 1 exhaust system
EV27 EV3 or EV35 cam or somthing very similar
free flowing airfilter

and if you want to spend a little more money get your heads flowed, 5 angle valve gring and shave about 50 thou off them to up the compression

its not rocket science, the motor is basically an air pump the more air you can pump in and out the more power you make

[simonDyna]

Originally Posted by Kiwi

I am glad somebody can recommend him, I wouldn't and neither would a very good mate of mine who had some work done there recently

I posted that nearly two years ago.

I'll still stand by what I posted. I have had nothing but good service and good results from Matt and I am happy to recommend him. Everywhere will have its supporters and detractors.