RK-TEK tock series high comp head on 02 700

02 summit 700

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just wondering if any of you guys have any incite on an RK-TEK head thinken about slapn one on the summit this fall. i know its not going to be a huge power gain but just a little low and mid range pop it says on the web site its rated to run pump gas obviously 91 oct. i all so am running air filters, boeysen reeds, and a jaws oem spec y pipe and a mbrp race can what kinda hp do you guys think this thing would put out with that head im thinking 150-155 i could be wrong. also what kinda compretion do high comp heads usually run i know a fresh motor is around 125-130 psi. all input will be appreciated.

:confused::confused::confused:
 

Slamnek

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Phone mountain magic in edmonton 780 474-9400 or pm mmagic on here. They deal with RKT. I ran the drop in kit on my 05 summit 800 and had to run a mix of about 2L 110 for every 10L of 91. my sled had a crankshop pipe and vforce reeds. It sure pepped it up and i was just figuring out the clutching and it got stolen.
 

imdoo'n

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i'd say 150 is very optimistic with just a head, no porting or pipe. i'm thinkin more like 135 to 140. on a 700 and it can be a pain to mix fuel. you may be better to shave 15 to 20 on the stock head and get a set of twin pipes, gut the airbox and a set of reed valves. shaving the head will set ya back 100 to 150 depending. heck ya may find a head alreaady cut. just my opinion.
 

02 summit 700

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i wouldent have to run race gas on just a head tho would i ?? and what psi would that thing run.
 

Slamnek

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I think you will have to run a mix if you are gonna ride it below 4000 feet. My rev 800 only had a pipe, can and reeds and i had to mix fuel down low (1800-2000 feet) comp ratio was 13.5:1. In the mountains i still mixed a bit just to be sure i had good fuel in the tank. Like i said before the sled worked good i just did'nt have the clutching worked out yet. If you want pull and go, stay stock and put a pipe, can and a set of v force reeds. buying race gas or av-gas was a pain in the butt stay mostly stock if your not a tuner or your not intrested in re-clutching and jetting if you are gonna ride below 3000-4000 feet.
 
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