Originally Posted by Amain21

Hey guys what plugs can you use with 21-4 keep off?

OS p4's?

Originally Posted by kgombe

no clue man.. i just provided his FB page for you... lol

the break in Bible is what i use...

Originally Posted by Eivind E

You can, if you're really, really super careful about tightening the plug..
I used to run them all the time because I felt like the engine ran better with them. But if you're in a hurry, or for example your pit guy discovering a dud plug just before a heat starts, you risk the dreaded gorillatighten deformation..
The taper has the same angle and everything, it's just the tapered area is smaller on the OS plug, so it's pushing on a smaller area of the head button. Hence if you slightly overtighten it, you deform the head button.

So.. if you are 100% sure you will always be super super careful with tightening it.. sure.. but if you think maybe one day you'll be in a hurry or your pit guy will replace a plug.. better run a Nova plug. Hence.. I'll just be running the Nova plugs from now on, even if they cost more and need more frequent replacement.

Originally Posted by Kevin_M

Can you not get the Nova 6 plugs? I use them for both my engines. I dont want someone to use a different plug and get the head button cross threaded if the plug goes bad.

Originally Posted by rossman

Hi everyone I'm looking to get a new engine for my truggy and I've been looking at the p5 Clio with a 9901 pipe an from what I've heard it's just like the old p5 but I thought I'd ask if the Clio was ok in a truggy.

Cheers

Ross

Originally Posted by LIVipers

Hey Monty,

I got a Nova keep Off 4-port which was pre-run from the factory. I've run a little less than a quart through it so far (at 200-215*F) to help seat everything further. The engine has about 5 tanks on it so far. How much more fuel do you think it needs before i can put a slightly rich race tune on it?

Thanks
Tom

Originally Posted by Artlosi

the Clio would be a excellent engine to run in a truggy but would be better with the 2096 pipe than the 9901
Imo ..

Originally Posted by houston

Novarossi factory pre run?

Idle 1 tank or 10 min of fuel with the fuel you will be using , after that tune about 75% performance for a few (3-4) tanks on the track then race tune . Ive seen people (pro drivers who are friends) do too much break in after nova pre run and lost compression almost instantly ,ooops , ive explained to them this method and why ,now they are going through wayyy less engines

Originally Posted by rossman

I though the 2096 was more for top end so I thought it'd be the 9901 for low to mid range torque ?

Cheers

Originally Posted by Artlosi

from my experience the 9901 calm down the p5 and it ran a lot smother I installed the 2096 and it felt like it had more torque at bottom end and mid.i know u said u have the Clio and it's not much different from the p5 .imo it's just like the maxy cinco .

Originally Posted by sn47som1

Hey guys just to put this one to bed, for me at least lol, i mixed things about what to start tuning for with Novarossis. Some start with the LSN some start with the HSN to start tuning. Which is it? And do I start tuning at half a tank of fuel?