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Discussion Starter · #1 ·
Ok I think I need some help before I make this purchase.
I was wondering what you guys think the best helix would be for my 99 XC700
I have a couple options and one I remember being recommended a ways back.

1. R12 (50-36)
2. R11
3. And the 38x

Any help would be greatly appreciated.

Ryan
 

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Originally posted by ryanru@Oct 15 2005, 03:00 PM
Ok I think I need some help before I make this purchase.
I was wondering what you guys think the best helix would be for my 99 XC700
I have a couple options and one I remember being recommended a ways back.

1. R12 (50-36)
2. R11
3. And the 38x

Any help would be greatly appreciated.

Ryan
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based on my 98 XC7 experience, from the helix's you have listed I would use the R-12
 

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The R12 and 38x are both good choices. You might be able to pull more weight with the R12.
 

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i agree,the 38 is a lot of helix,stock motor might not pull it very well.
r-12 works good

but if your interested,i have a fp 50-38 dalton ,for 1/2 of new price?
 

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Discussion Starter · #5 ·
The motor now has SLP twins, vforce reeds, and updated carbs. I was hoping it would be able to pull the 38. I was planning on using 62g weights what are your thoughts? XC special I would be more than interested in your helix if you think what I added would be able to pull it.
Thanks Guys, :beerchug:
Ryan Francis
 

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you should be able to run 64 grams
 

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Discussion Starter · #7 ·
so for one final check.
Here is what I have/ should get.

Xc_special's FP (50-38)
(10/64's)
Primary spring: Almond/Gold
Secondary Spring: Silver Blue

Just tell me yes and you have made my winter?
Thanks guys
Ryan Francis :beerchug:
 

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on ves 700,i ran a 165/310 , fp50/38 ,epi orange,and 64,s stock everything else,it work very well

alm/gold 140,150-285[if i recall] with a fp 50-38 and 64 s isnt enough spring imo,

i would go , or alm red, with the twins 64 s,50-38 , epi org,

,sil/blue.epi org [have those also]
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i used to use alm/gold ,62s.sil/blue,r-12 on my stock 00 700, which worked well

same sled with a cheater head,and a pipe,alm/red,64s,,50-38, epi org

set-ups are not written in stone,but these would be close,

gearing and jetting make a big difference,
 

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Discussion Starter · #9 ·
Thanks XC Special, It is geared down to 23. 180/185 jet. updated R1371G Needles. Powerpack and so forth.
Ok I will start with the following setup
50-38
10-64's
prim- Alm/Red
Sec- Epi Organge

If you have any/all of the above that would be the cats ass.
Would you mind sending me a p,m With some prices if possible. Thank XC_Special
 

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I have that epi orang if you need one, never ran it
 

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I would think with SLP twins, 64grams + the 38X might load the motor down too much, that setup should work well with an SLP single , but the twins usually needs some more rpms on top.
I would also start out higher on the jetting, 180/185 is what I'm running in my 99 with the stock pipe.
Also, I rememer Pockets recommended using BR10ES plugs when running twins on the zx700.
 

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Discussion Starter · #12 ·
As always I am hear to learn from you guys. Ivar what about keeping the
50-38
prim- Alm/Red
Sec- Epi Organge

And running 62's??
As for jetting i was thinking of starting with the 180/185. I have purchased EGT's
And am doing alright checking piston wash and plug colour. However I have no doubt in my mind you know about 300% more than me so i will start the year with 185/190's.

Pockets if you read this thread I would love your input on the BR10ES plugs.

Thanks to all who have helped me :beerchug:
Ryan Francis
 

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Did you run with the twins last year? Not sure how many sizes higher they'll need , but you can check SLP's specs on their website.
Their jetting specs are on the conservative side, maybe as high as 200/205. Whats your ridin altitude btw?

I think I would try the 62 instead of the 64's.
 

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Discussion Starter · #14 ·
Hey Ivar,
My altitude is around 600 Meters I believe,
Slp tuning guide calls for 215/220's for -20 and below at under 2000 feet- Man that can't be right?? I have an ATACC I need to tune to as well.
I will go with the 62's as you recommend Ivar. Thanks again
What are your thoughts of the mains?
Edit: The twins are a new addition. Was Running 190/195's last year
 

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well , I'd think if you put in 180/185 along with the pipes, new pistons might be in order. Not quite sure where I would start, but at least as high as 190/195. Also the midrange will need to be watched closely.

Maybe pockets will chime in here , I'm sure he's got some good advice on this one.
 

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Discussion Starter · #16 ·
Compared to the 215/220's - 180/185's seems Way to lean.
Pockets if you’re out there I would love to hear from you.
I have the updated needles "R1371G" and have them currently in clip#3.
Pilot’s 38's
You are always great help Ivar, Thanks :beerchug:
 

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You need the SLP CCL needles, run them in #2 or 3 clip. Gut the airbox, and preferably RSR big mouth kit, or SLP airbox kit as well. The R1371G are not rich enough when coming off full throttle. No more than 62 gram weights, almond primary spring as well. On the twin piped sleds, I liked the 38X the best, backshift was not as good as the R12, but it outpulled by a large margin, no matter what else was changed. You will need to go much bigger mains than that, at a minimum, 195. Your altitude, start with 205, and run the BR10ES plugs, to help cool the combustion chamber on long runs. If you richen it to do this, you lose power as it is too rich until the pipes get really hot. If you run the R12, silver/blue #2, or polaris blue #2 or 3. I think the 50/38 full progressive is too much for trail. I used it for drags the odd time, but the 38X was more forgiving. 50/38 full progressive with hot seat orange #4. 38X with hot seat orange #3 or 4, or erlandson black #2, or silver/blue #3. With the R12 you will pull 64's, and a almond/red.
 

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Discussion Starter · #18 ·
:div20: Thank you Pockets for your help. :beerchug:
Do you think the pilot 38's should be alright for a start?
I am pretty efficient at finding parts but cannot locate the "RSR big mouth kit"
Any places to order from would be great. Thank you.
 

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Recreation Supply Co. Ltd.
Toll Free in Canada: 1-800-667-7669
Phone: (306) 664-3560 Fax: (306) 664-3282

in saskatoon, they use to sell them,

its worth a try.

and thanks
 

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Discussion Starter · #20 ·
Thanks Xc_Special,
They have it in stock, $60 CAD
RSR-14-270 incase anyone else is interested. :beerchug:
 
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