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Old 03-10-2008, 07:06 PM   #31
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ok then...what is the smallest restrictor you can get for a V-Spec, standard carb? Is there an aftermarket one??? I have what came with the motor: red and blue. what's the SMALLEST...
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Old 03-12-2008, 09:42 AM   #32
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You can use the Rossi carb restrictors on the V-Spec. I checked the diameter and length and they came out to be the same as the OS ones. I think that the RB ones are the same too. The smallest I have found is a 6mm from rossi. I run a 8mm at my altitude (almost 5280 ft.) and will run a smaller one when I run at a lower altitude. My theory is that as you go up in altitude a larger restrictor is needed because the air is thinner and should allow the power band to feel close to a lower altitude without running too lean. I have even went as far as running without a restrictor to have the full 9mm out of the carb. It worked ok, but choose to put the 8mm back in. I have be wrong in my thinking, but it seems to work so far.
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Old 03-12-2008, 10:34 AM   #33
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Regarding resrictors. When installing them, do you adjust the idle speed screw to "fit" a particular size or does that stay the same regardless? I know the generalisation is the have a 1mm gap, but does it change with a different size restrictor?
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Old 03-12-2008, 10:44 AM   #34
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Keep in mind that a change in restrictors does require a change in the tuning of the motor, so the idle screw could need to be changed some for the tune that the motor will need. Try going from an 8mm to a 6.5mm restrictor and you will have a tune that is way off. Going from 8mm to 7.5mm you might get away with not changing the tuning, but I would retune anyway.
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Old 03-12-2008, 10:47 AM   #35
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I guess the correct answer would be both a yes and no.
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Old 03-12-2008, 06:51 PM   #36
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Quote:
Originally Posted by JustinD View Post
I wouldnt get a .28 there always over kill.I have a novarossi .28 and it drinks gas and spins the tires 21's are better.
It really depends on what kind of surface your running the car... for at truggy if you run on some type of semi high traction... ive seen .28s get well over 10min tanks because its usable power... a small blip of the throttle will let you clear the same thing a .21 would do without the lead up... Loose conditions however ide definatly run a .21 because its usually throttle control with constant imputs from the throttle. and with a .28 ide definatly use a carb restrictor such as a novarossi 6 to an 8 depending on conditions.

For a buggy though... ide definatly stay with a .21 because (well i think this is right) .28s are illegal to use in roar sanctioned races. And regardless of traction and conditions it just too much power for a car thats a a couple pounds lighter than a truggy.
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Old 04-06-2008, 09:49 AM   #37
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Hey guys, Im about to buy a new block for outdoor this summer. I have 9 years experience in nitro and am very adept at tuning. I have been running axe rossi and rb lately and would like to know your thoughts on the 8 port hot mod nova compared to the stock turbo p5 turbo. They are virtually the same price on a-main. I will be running on mid/large outdoor grooved and loose tracks. I have a jp-3, and ofna 086 pipe, which would your recomend with each block? Thanks a lot!
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Old 04-06-2008, 09:35 PM   #38
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speaking of motors.. i have a brand new 367 that im tryin to get rid off.. nothing against the motor but i ended getting an 821b... so happy with it..

pm me if ur interested..
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