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Old 12-13-2002, 02:08 AM   #526
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im thinking of selling my car and saving up for a v-one rr
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Old 12-13-2002, 02:13 AM   #527
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Its a balance of high and low end tuning, tune the low-end first, so that it comes off the mark clean and crisp, but when backed off the engine doesnt hold the revs,
If it holds the revs when u back off it is too lean, if it bogs off the mark it is to rich.
That is for low-end
Once low-end is finished, tune the top end, so that, in the powerband reaching to top RPM it doesnt bog half way through RPM range, that is usually too rich, and so that when u give it everything it doesnt STALL, that is too lean

Go play.
And once that is done, work your idle down as low as possible so that the engine will idle when COLD, not just when its upto racing heat.

Matt.
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Old 12-13-2002, 02:17 AM   #528
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it seems when i lean out the engine it bogs down
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Old 12-13-2002, 02:21 AM   #529
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Where abouts is it bogging,
When u try to get off the mark?
Half way through powerband?
Slowly accelerate to find where it wants to BOG down in.
A quick question, i doubt that u dont know how to tune alright, but which way are u turning to lean? clockwise? counterclockwise?
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Old 12-13-2002, 02:24 AM   #530
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Oh the joys of nitro!

definately sounds like too rich on the bottom end!
Just start where you are and go in 1/16 of a turn at a time on your low end till it idles neatly and pulls away without bogging down.
Remember the high end needle also effects the bottom end so to start with put that where you know it was working.

ps;even if ya buy an RR ya still gotta tune it!

gt

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Old 12-13-2002, 02:28 AM   #531
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Depends if it is bogging off the mark, if it is then yeah low-end is too rich, but if it is half way throught the RPM then top-end is too rich
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Old 12-13-2002, 02:33 AM   #532
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matt ya got ur tuning mixed, ya adjust the top first and then the bottem, coz the top end needle adjusts the bottem too, lean the top, also leans the bottem and same with richenin it
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Old 12-13-2002, 02:43 AM   #533
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Quote:
Originally posted by squizzytaylor
Thats what we like to hear!

You might wish to lean out the bottom end slightly but only make adjustments 1/8 of a turn at a time. this should improve your acceleration, Its pretty cold over there whereas here on Oz its bloody hot. Try that and let us all know how you get on.
Worry about the hop-ups later.
Both the cars are v1s which is why I would hope to get a reasonably similar response from them, I know that tuning can make the world of difference while the setup of the cars are stock. We're both using the same fuel too.
You're initial advice was spot on though, leaned out the low end - letting it run for 5-10 minutes each time to really appreciate the difference. I've found what seems to be the optimum setting for the current running conditions so I'll start doing some tweaks to the top end as suggested.

I'm know these cars weren't designed to just drag up and down but at the moment it's so wet and cold over here the only place that we've found to race is in multi story car parks. We tried going on the top floor which is usually completely open to the weather but it was just too wet so we've dropped down a floor. The low ceilings make the cars sound good but also make it harder to really hear what the engines doing. Lots of nasty concrete pillars too

I'll keep you all posted with the progress.....thanks as ever!
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Old 12-13-2002, 02:44 AM   #534
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Thats an area of controversy, ill stick with my method, as my dad told me the same as i had posted.
Plus a few of the websites say tuned the low first, but some say top-end.

Its very controversial
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Old 12-13-2002, 02:46 AM   #535
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Quote:
Originally posted by ChrisO
matt ya got ur tuning mixed, ya adjust the top first and then the bottem, coz the top end needle adjusts the bottem too, lean the top, also leans the bottem and same with richenin it
Now I'm just confused.... which end do we tune first....?
Or is it a bit of an iterative process.... top then bottom .... top then bottom...?
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Old 12-13-2002, 02:49 AM   #536
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Is your engine running relatively ok?
If so, then adjust the needle for the are that needs improvement, top-end for the high speed stuff, and low end for off the mark/slowing down parts.

But as chris said, one needle will also affect the other end of the spectrum.
So yeah, once running relatively ok, tune accordingly to the needs of the engine.
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Old 12-13-2002, 03:06 AM   #537
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Smile Tuning

Cheers..... sounds like good advice as ever...!
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Old 12-13-2002, 07:34 AM   #538
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Default Replacement belts / pulleys

I've got a mate coming over for the New Year from America and he's offered to pick me up any little bits and pieces I would want for the car to save postage - plus the inflated prices we pay here anyway.

Taking the advice offered I'm not going to go for any upgrades but my belts and pulleys are starting to look a little chewed up so I was going to try and order some replacements.

In early posts someone mentioned that you could get hardened pulleys and I thought someone suggested an alternate set of belts.

Are there any recommended alternatives?
If you had the actual part no.s that would be really helpful as it's a long way to carry the wrong bit if I get order the wrong part.

Cheers
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Old 12-13-2002, 03:08 PM   #539
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matt looks like im just gonna have to snap ya http://rcnitro.com/rn/articles/super_tune.asp

have a good read
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Old 12-13-2002, 06:08 PM   #540
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parts and No's

Pulley set (complete) vz-008 (get 2)
Diff pulleys (includes diff housings)vz-009
front belt long vz-036
rear and side belt are the same(vz-071) get 2
rear link pins vz-018 They bend but you cant see it!
body post set FT22

Thats all i recomend, there is some debate over the value of aluminium pulleys etc as allthough they last forever they are heavier and are pretty unforgiving on belts if they do collect crap.

gt

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