!TWISTER!

325 for full drag porting... :thumbsup:

Any feedback with thoses pistons, never heard about them.

The goal is to prevent the problem. I didn't said i will happend, just in case.

Sounds good, sometime tear down is 200 and even 300.

Ok I see

The yfz will lauch faster than you, but if you're going dune/drag, you will have it on the top-end. Wisco kit claim 69,86hp. But if you think about 0.4bore, this could change alot, if done right. Your porting will change and you're head too. One thing is sure, you have to make up your mind, with the bore before anything else.

Looks like somebody did their homework! Glad you're here lowriderb!

The video is posted is Dan' Hull triple is making 237Hp 142tQ without any tunning. K&T with their 17XXcc is making something arround 350Hp and more than 400hp with the spray I don't know you're goal, but good luck.

That's right

The major problem with aftermark head, when a costumer who doesn't know a thing about 2stroke. If his engine is like his squish 1,4mm and end with a 0.04 and a piston +0.04. We have a probleme here. I know theirs heads is suppose to handle this problem, I don't know the answer.... But what does '' grove porting'' stand for?

When you read the description and what they say is wrong, I won't ever bother with the product and the compagnie. Playing with the squish band is something that can be fatal to you're engine, I don't know those head. But for hemispherical head, if is something wrong or something with your engine that doesn't fit, you're piston/ring/wristpine/rod will suffer. Go with a real builder, not the supermarket of performance part. That's the same price and cheaper.

517-404-0346 ask for Rob Guys from RDZ Racing, they won't sell you crap, they will takes time, to explain you everything you want to know.

Damn thats sound SO GOOD.

I never loved their product, nice to know they suck.

+4 Stroker Cool Head Vforce Should be good.

I have time and patience, where is the knowledge?

A pipe can't give you, what you're engine is suppose to give, if you want top-end power, you'll need porting in consequence, don't search for a pipe that will gives you, the most top-end. I think they are going to give the same amount of power. If you're thinking about porting your engine, maybe thinking more seriously, if not, you're wasting you're time.

Open it and take pictures I would like to see the domage. You didn't said anything relate to the new modifications, it's a bit hard. Maybe something with the squish clearance or something with the ring, bad seal? Anybody ?

Yeah I heard about it, something with the transfer port and exhaust

stay with the T5, Shearer are mainly drag racing pipe.

155

They are good for stock or semi-stock engine

I mean they are free somewhere like the books I found, I'll search them.

I'm sure those book are somewhere, i would like to have thoses 4 stroke books.

Every cylinder will do what you want from them it depend on how they are tune.