87warrior917
Well-Known Member
Ha! Good, i hope it all works out good for ya. What kinda carb you gonna go with? Is the head anything special?
366cc or 397cc?
- Thread starter Advan
- Start date
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Ha! Good, i hope it all works out good for ya. What kinda carb you gonna go with? Is the head anything special?
its got massive porting and i know its got a race carb 38 or 39 mm, hes throwing in a new +1mm intake valve and a high compression piston plus all the bearings and gaskets to get it together
duneracerweston
Well-Known Member
Not yet I'm waiting on the weilder shop and I talked to Mr jesup (my machine shop Guy and ex motor cycle racer) and he said it would work because he's done it before with motorcycles befor
Advan
Member
can do 366cc only with 85mm bore and cam shaft ? Do not need anything else ?
duneracerweston
Well-Known Member
nope you just bore it.80 over and shazam its a 366 tecnicly you dont even need a cam
Advan
Member
.80 over ,What size piston I have to buy to 366cc ?
87warrior917
Well-Known Member
JE 85mm
duneracerweston
Well-Known Member
what he said
.20in = 0.5mm
.40in = 1.0mm
.60in = 1.5mm
.80in = 2.0mm
stock is 83 mm i do believe
1998yamahawarrior
Well-Known Member
Yep stock is 83mm
91warrior
Well-Known Member
actually it is
.020" = .5mm over
.040" = 1.0mm over
.060 = 1.5mm over
.080 = 2.0mm over
stock is 3.26771 (83mm)
.020 (.5mm) oversized is 3.287 rounded (83.5mm)
.040 (1.0mm) oversized is 3.307 rounded (84.0mm)
.060 (1.5mm) oversized is 3.327 rounded (84.5mm)
.080 (2.0mm) oversized is 3.346 rounded (85.0mm)
to convert metric to inches take the number times .03937 (83mm x .03937=3.268 rounded)
to convert inches to metric, take the number timse 25.4 (3.268 x 25.4=83.0 rounded)
to calculate cc's for this engine, take Radius x Radius x Height x Pi x 16.387064
Radius equals (on a stock bore, will change when bored) = 3.26771 (83mm)/2= 1.633855
Height (stroke) = 2.539365 (64.5mm stroke)
Pi = 3.141592654
stock cc's =1.633855 x 1.633855 x 2.539365 x 3.141592654 x 16.387064=348.98 cc's
.020 (0.5mm) bored over (83.5mm) bore = 353.199 or 353 cc's
.040 (1.0mm) bored over (84.0mm) bore = 357.442 or 357 cc's
.060 (1.5mm) bored over (84.5mm) bore = 361.7099 or 362 cc's
.080 (2.0mm) bored over (85.0mm) bore = 366.003 or 366 cc's
duneracerweston
Well-Known Member
Dang dude getin all technical on me
91warrior
Well-Known Member
well i didnt mean it like that, just was reading through this, good opinions on these kits. if anyone is interested, i could make a chart with all the cc's sizes, with stroker kits available for the warriors so it would be easier to see when someone bores or strokes their engine to see what they then have. im in an engine class right now so im learning all of this at the moment. i did get carried away though
elwood
Well-Known Member
you know I was looking at hotrods site and saw this http://www.hotrodsproducts.com/TunersTips.aspx?ItemID=36&page=1 makes me wonder if you cut the releave into a piston if you can use it instead of the hotrods stroker piston. If so you would be able to use a JE or wiesco piston which cost less and when the time comes you could bore the jug to 85mm. I think I'll try to remember to call them monday I tried Friday but they were closed already. What you guys think?
duneracerweston
Well-Known Member
Interesting so what would that make the displacement be stroked an. 080 over
91warrior
Well-Known Member
if its with a +4mm stroker kit and .080 over it would be 388.70 cc's
compared to a +4mm stroker kit at .040 at 379.61 cc's
if its with a +7mm stroker kit and .080 over it would be 405.72 cc's
compared to a +7mm stroker kit and .040 over at 396.23 cc's
compared to a +4mm stroker kit at .040 at 379.61 cc's
if its with a +7mm stroker kit and .080 over it would be 405.72 cc's
compared to a +7mm stroker kit and .040 over at 396.23 cc's
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bassballs818
Well-Known Member
Making a chart would be a cool thing to do. It could be posted under the tutorial or made a sticky.
elwood
Well-Known Member
So I just got off the phone with hot rods. They told me that they haven't made the +7mm stroker since 08. I saw some on ebay still. Also the piston they use for their stroker kit started out made by CT then Weisco made them and now they are made by Vertex. Also if you want to run another bore instead of 84mm you will either have to have the piston custom made, or run a thinker base and gead gasket becuase the wrist pin is moved up higher on the piston. And I asked about hp gain with the +4mm stroker a stage2 cam and mild port. He told me 11%. That is crap, stock warrior is 22 + 11% = 24.72. Not worth $650.00(with cam) to me
DeadLastRacing
Well-Known Member
Yupp, why you think gasmans went out. Its a risky move btu still cool. Awesome math work 91, I always wanted to see that break down. I've been feed and carrying a lie for long enough, I only have a 362cc warrior :tdown:. Yet another reason why my cam is to big for my quad.
elwood
Well-Known Member
But on the positve you still have a bore left in the jug. Might get another horse out of it when it needs the bore.:tup:
DeadLastRacing
Well-Known Member
egh, new bore = new piston. And I like runnin the 11:1 ratio. 11:1 are hard to find now a days.
