BANSHEEBEEFM2M Posted July 17, 2014 Report Posted July 17, 2014 ok im getting ready to run alky or look into it, looking at sum mikuni 38tms w/pjs or 39 pwks, bike is a 370lr drag ported, blaster pistons, 17cc domes, already have a timing plate, a pingel, etc. have 17 cc domes and copmpression is at 175 lbs on each side, i will be using castor 927 premix, ridin at sea leel.. do i need more compression? how much do i or can i advance the timing? Quote
LCW Posted July 18, 2014 Report Posted July 18, 2014 I have ran pwks for years without issue. The only down side is that they can't be converted back to gas. I'm about to switch to lectrons for my drag bike. As far as compression goes, all my drag bikes have run around 175psi. More compression would be fine, but at a certain point you will have to give up rpm. High compression and rpm put more stress on the crank and rods. Stick with castor oil. I have had techniplate flash rust cylinders within hours of shutdown. Definitely purge the motor and use a fogging oil for short periods between riding. I run my drag bikes at 32:1. Alcohol is considered a solvent and it gives me piece of mind running a good amount of oil. Quote
n2otoofast4u Posted July 18, 2014 Report Posted July 18, 2014 I don't get the purge thing. Oregon is pretty fuggin moist. I never purge from the first of the summer until the end. Pull the junk apart and it looks brand new. Quote
#1JUANstunna Posted July 18, 2014 Report Posted July 18, 2014 I don't get the purge thing. Oregon is pretty fuggin moist. I never purge from the first of the summer until the end. Pull the junk apart and it looks brand new. I never purge my junk either. My Wildcard motor was started on alky in May of 13 and never had a drop of gas in it. It run good enough to take a 1st and 2nd at the drags last weekend. Quote
Finch Posted July 18, 2014 Report Posted July 18, 2014 I never purge my junk either. My Wildcard motor was started on alky in May of 13 and never had a drop of gas in it. It run good enough to take a 1st and 2nd at the drags last weekend. only one other guy show? Quote
registered user Posted July 18, 2014 Report Posted July 18, 2014 (edited) what a bunch of sissys around here. you aint got a hair one if you dont put in some nitro Edited July 18, 2014 by registered user Quote
#1JUANstunna Posted July 18, 2014 Report Posted July 18, 2014 only one other guy show? No dick, 12 in both classes. Quote
BANSHEEBEEFM2M Posted July 18, 2014 Author Report Posted July 18, 2014 Well I'm getting the 38tm's. W/pjs. They were also setup for a stock stroke bike at sea level, mine is also stock stroke and pismo is sea level. . Will the jetting be close? Quote
BANSHEEBEEFM2M Posted July 18, 2014 Author Report Posted July 18, 2014 And will 8mm Reed spacers make these big bitches clear the clutch arm Quote
sheerider11 Posted July 18, 2014 Report Posted July 18, 2014 my 4 stroke is on nitroPffff I have 2, yup 2 rc trucks that run nitro. And there 2 stroke. Quote
Finch Posted July 18, 2014 Report Posted July 18, 2014 And will 8mm Reed spacers make these big bitches clear the clutch arm junk the spacers just bend the arm down Quote
registered user Posted July 18, 2014 Report Posted July 18, 2014 my 4 stroke is on nitro cool do you got some pics ? wondering how the fuel systems are setup Quote
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