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Posted

I have some cylinders that are ported pretty heavy and wanted some input on what the characteristics Will be, they have some killer looking work done but the port roof measurements have me a little concerned. The exhaust port roof measures 25.4mm from the cylinder deck. And the transfer ports measure 41.2mm from the cylinder deck. That sounds kinda short to me, could they be over ported for any normal riding?

Posted

they will be good for only drag racing probably.. if I did the math right you should be somewhere around 200/129 on port timing with stock crank, trail riding will most likely suck

Posted

Yea im afraid their gonna be top end monsters, i do plenty of drag racing and dune riding so Im gonna try em out and see. Should they be pretty strong in mid range? I know the bottom end is out of the question but Im hoping for some mid range.

Posted

Could someone inform me on where the different type of port jobs begin as far and the port timing. looking for more of a range that determines trail, dune, port..

Posted

You Will need to take some measurements from the top of your exhaust port to the top deck of your cylinder And from your transfer port roofs to the top deck of the cylinder. Those measurements can tell you a lot from what Im seeing.

Posted

everyone always says drag ports suck in trails but i love mine lol dont get me wrong its pretty dead on low end but just keep the revs up and hold the fuck on haha ive always liked stong top end motors in anything i drive so maybe its just me :sorcerer:

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Posted

I've trail rode with a drag port and shit got hairy quick:lol:

 

Sent from my SGH-T679 using Tapatalk 2

 

when i ran razrs on my drag ported 4mil the bike was all over the place but i put some 22" bearclaws on the back and it hooks right up, just a battle to keep the front down haha

Posted

when i ran razrs on my drag ported 4mil the bike was all over the place but i put some 22" bearclaws on the back and it hooks right up, just a battle to keep the front down haha

Heavy ass bearclaws FTW lol

I trail ride a 10mil Vitos 465 drag port and yes it's not the best but my 22" bearclaws do smooth the power out.

Learn to slip the clutch and it's doable. You won't have much midrange brother.

I'm not really happy at the moment with my set-up but you have it easier in the dunes.

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