primus95

iTrader: (16)

thanks for all the input guys, I thought I was finally getting my head around tuning, but there is always something to make me go "what the . . . . . ?"

I thought my LSN was tuned correct as I used the exact method defined by Bernard Durand on Vimeo and it returns to idle straight away from WOT & will idle forever. I will richen the HSN a couple of hours (and in turn adjust the LSN) and run some back to back tanks and see how it goes. thanks for all your help.

houston

iTrader: (96)

One thing Bernard didnt really "stress" in that video enough is to be sure your hsn is PLENTY rich before heading out to dial the hsn in

I will explain why if you dont understand why but atm I am working

teeforb

iTrader: (94)

helping a friend...

what's the difference between a 4BTTA and 4BTT? Which is better?

and which pipe to get with this?

houston

iTrader: (96)

Virtually identical aside from btt/a has a different (17004} front brng and steel rear

Btt has good (17011} front brng and ceramic rear

Oh and the price

beidle99

iTrader: (9)

Monty,
I thought the btt/a came with the 17011? How is the 17004?

Jason Pelletier

iTrader: (33)

After watching that video couple seasons ago. It just strengthened some ideas i had but really made it all click in terms of tuning. I recommend that video to every one.

houston

iTrader: (96)

ill call ya in a bit

Eastside777

I rewcently switched from the RC8.2 standard clutch to a Werks (Heavy) clutch system. Would this affect my tune much? The car ran fine but seemed to idle a bit irregular (faster). Almost sounded a bit lean.

rcindia

iTrader: (9)

I have the old version. What are the most evident symptoms of bearing failure? Last week, my engine was reving, but wasn't moving as normal. Thought it was the clutch and replaced it. This week, still has issue when the engine heats up a bit. Also can hear a cling..cling sound. Looks like some resistance.

Idles perfectly and doesn't heat up or flame out. Max temp seen is 240 F. How can I confirm without fully disassembling engine?

tweeter79

iTrader: (19)

Just got back into nitro after 15 years off, picked up a used MBX-6 with one of these mills in it. Previous owner said it had about 2 gallons through it. It still has a good pinch.

Had to scrape a bunch of carbon build-up from the top of piston, but looks good now.

To my understanding the engine come with standard & turbo head. I think this engine has a turbo head because it's got a p3 turbo plug in it. Am I assuming this correctly? The button head has 2 dots on one side & 1 dot on other side.

I would also like to change bearings. Any recomendations for ceramic or steel bearings?

Keith Lewis

iTrader: (16)

You are correct. All Plus 4s have turbo heads and so does yours, especially since it has a turbo plug in it.

the daddy

Has anyone used 3016 hong nor pipe with the +4 if so any good

joech

iTrader: (40)

Does the +21-4 works well in a truggy? My other option is to put a new OS speed world 2 in my EVO. what would be better?

Lille-bror

Yep! Very good engine for a truggy. You can make nice wheelies on high bit tracks. Some likes Toro Nero for truggy but that can be way too powerfull.

teeforb

iTrader: (94)

does the plus 4 like picco plug 4 (hot) glow plugs?

thx