Mfavor

Hey guys I'm a newbie here and have a question about tuning. I've been running novas for a while now and just got an r5r with the new carb(long needle). Do I set the .5mm idle gap then lean the lsn until idle drops down nice and smooth immediately then tune the hsn for top end or is it different in any way. I've heard these tube like a Picco and I read on Piccos site that when setting the lsn ur supposed to riches it half a turn after leaning it out til idle drops quickly after a run. Any type of step by step would be great. Thanks for all your help.

Maximo

iTrader: (11)

Preset a 0.6 mm idle gap to start or as close to it as you can manage......then tune the LSN and HSN together to get yourself into the ballpark.... then do as you describe and set the LSN to have a strong but slowly loading up idle..and I aim for the HSN to have crisp power and a fast idle down...If I cannot get a fast idle down with crisp power I may try lowering the idle gap a touch or checking the linkage... Now if I get a fast idle down but the engine wont idle properly I may try a slightly bigger idle gap....... With these long needle carbs I find it best to make small movements and do a little trial and error to see exactly what is the best..with the goal to have crisp power, fast idle down and a strong but descending idle speed.... the longer it can idle the better but we always want to have a slight load up as it idles....I find these engines like to be a little richer then a Nova and will want to run cooler...I suggest monitoring the glowplug coil shape to see if your tune is lean or rich...if the coils start distorting in shape it means your either too lean or need to run a cooler plug....... These engines do not give as much idle carry as a Nova if you get too lean, so be careful and listen very closely to the idle down, if its lean it will carry slightly but nowhere near as much as a lean Nova will.......I recommend once you find the sweet spot to run the engine at the richest point where it will still clear out and make full power....The glowplug will tell you whats happening, if the coil shape is good your OK...if the coil is distorted or warped then we are too lean....

revo61

iTrader: (18)

Does this still work on the new V2 R7 engine?

Taylor19army

iTrader: (2)

I'm on my first gallon and I have a little seep out the front of the crank and I'm wondering should I get it fixed or ok to keep running it?

shanef

iTrader: (38)

That happens when you are too rich on the bottom end. Once I finish run-in I pull the clutch off and clean it then when it's properly tuned it will no longer leak.

Ic27

What's the best pipe for r7 for medium grip tracks

RokleM

iTrader: (33)

The 2113 is recommended with the R7 with either a medium or short manifold, depending on where you want the power band. The medium has an explosive amount of power, the short should calm it out a bit and give it a little more top end.

Ic27

I have two r7 and run them both with the 2112and small manifold but the power is a little two aggressive when the traction goes down , I have been told to try the 2104 is it good with run time??? And how is the run time with the 2113

Jeff burns

iTrader: (5)

I just recently got my hands on a 8T with a reds r5s. I have what maybe a simple question. The paperwork that came with the motor recommends 25 to 30% nitro. My lhs carries the vp 20%. I'm not a racer and it seems to run strong to me with it being by far the nicest nitro I've ever had. I don't think there should be any problems with running the 20% but I guess that's why I'm asking here because honestly I've never owned a tuned racing motor before either and I would just like to not abuse it more than normal is all. Thanks for any suggestions

Jeff burns

iTrader: (5)

Like I said I'm not racing so I definitely don't feel the need for the 30% I'm just curious if there would be any adverse effects of 20% VP

am

On 30% you will have more torque. It will also be harder to drive as the power goes up :-)

LightningStruck

iTrader: (4)

I would stay away from VP entirely

Jeff burns

iTrader: (5)

Seriously, you don't like VP. I won't pretend to know a lot the readily available fuels I have nearby are VP and Traxxas fuel. I don't have any problems with Traxxas but I'm not crazy about the plastic bottles. VP is usually a pretty trusted name in most forms of racing fuels. What recommendations do you guys have then. Ordering fuel online. It was my understanding 30% might wear the motor quicker idk. I just want to run something in it that keeps the motor and my wallet happy.

RokleM

iTrader: (33)

I would recommend a quality fuel like Byrons 30%. A moderately well tuned REDS engine on 30% will last quite a long time.

LightningStruck

iTrader: (4)

I personally run Byrons 30/9 Prodriver. My R5TTE2 has between 7-8gal on it, with only front bearing and Rod changes.

A couple years ago I had a rod failure which started a pretty informative conversation between a few Reds drivers, and the concensus was that it was a fuel issue, as I had just switched from Werks to VP 30%. At that time there had been quite a few failures with VP. From then on I have been running Byrons with ZERO failures. A buddy of mine runs another Picco based manufactures motor, and he had had a few failures in the past 2 years while running VP as well, and since his switch to Byrons this past year, he's had zero failures as well.