Srx Grass Draging!!

C

cardguy

Member
Joined
Feb 3, 2004
Messages
43
Age
48
Location
SW Ontario, Canada
last saturday a bunch of us went out and raced 500 feet and a wheat feild, everyone pulled ther sleds out of their barns and sheds and ran them, the sleds that showed where: apex gt supercharged, mach 1000, srx 700, skidoo 600 Ho, 3 f6's, 1 F7, 2003 polaris 800, 2006 polaris 600HO. and a few more.

I made it to the final with the old 2002 srx. so it was me and the F7. I ended up losing by about a sled length. (in 500 feet) most of the cats where tied down and they all are not stock except for one.

heres my question, what do i need to do for grass: jetting, suspention, gearing, clucthing, etc.... I went out there bone stock, the only i have is:

8Dn-20 weights with 4.5 in each hole
WWW yamaha primary spring
51-43 helix from an RX1
green secoundary spring wrapped at 80

any help would be great, thankx
 
CLUTCHES

just a set of 8BU-00 weights with a bender orange spring and 12mm of engagement shims. Put a 4.5 gram rivet in the tip of the 8BU weights. The 8BU weights are yamaha's best weight for racing short distances. the 20's are for the trails and racing long distance. the helix is good just try it at 70 with that green spring.

JETTING
Main jets 135 mains all the way across and pull your needles up all the way (c-clip on the very bottom notch)

GEARING

for 500 feet use a 19/40. for 600 use a 20/40 660 use a 20/39


get your sled on a jack stand or rea in the air. loosen up the front rear shock and tighen up the limiter straps all the way than snug down the retainer nuts on the shock spring till you can feel some resistance on the spring when you turn it by hand.

I have some gears if you need them. I habe a ton. but just dont mix hyvo and sx style gears and chains together. 00-02 srx has hyvo gears. i have a ton of hyvo gears and sx style none hyvo gears and chains
 
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what about the rear shock? as loose as it will go? then strap it down solid? and the front strap it down as much as it will go? Do i want transfer or no? always thought the front rear you wanted it putting pressure . Transer rods set to Max? FTA set that to what?

sorry for so many questions?
 
Here are grassdrag result from sweden this weekend! some norwegians olso joined in.. look at the srx kicking *** in stock 800 class.. 1st and 3 place!! a Apex in 2 place! good news for us yammie drivers!

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Resultat Dalacupen 2006


Stock 380 Poäng
Placering Startnummer Namn Klubb Märke Team Fredag Lördag Söndag Totalt
1 52 Lucas Eriksson Malungs SSK Ski-Doo Rev 380 JM Reklam 100 100 75 275
2 1 Robert Lundkvist Dala-Järna SSK lynx 400 f 75 75 100 250

Stock 600 Poäng
Placering Startnummer Namn Klubb Märke Team Fredag Lördag Söndag Totalt
1 499 Daniel Sixtensson Dala-Järna SSK Arcitc Cat F6 Ärtsäcks Racing 100 100 100 300
2 601 Torfinn Johansen Kirkenes MK (Norge) skidoo mxz 600 Tana dragracing team 75 75 75 225
3 407 Kåre Westerberg Dala-Järna SSK Ski-Doo MXZ 500 SS Rev Ärtsäcks Racing 50 50 25 125
4 54 Peter Hagberg Dala-Järna SSK Polaris Ärtsäcks Racing 50 50
5 488 Jerker Ulausson Strömsunds SSK Polaris Ottos Motor 25 25 50

Stock 800 Poäng
Placering Startnummer Namn Klubb Märke Team Fredag Lördag Söndag Totalt
1 307 Anders Hedberg Smk Söderhamn Yamaha SRX Hellströms Möbelexpress 100 25 100 225
2 804 Bjørn-Ivar Masternes Lakselv MK (Norge) YAMAHA 75 100 50 225
3 1504 Ivan Sørli Verdal-SSK (Norge) SRX 700 Ottos motor 75 75 150
4 800 Berit Marie Helene Eira Alta SSF (Norge) Arcitc Cat F7 Team Alta 50 50
5 345 Fredrik Olsson Härjedalens AK Yamaha srx700 50 50
6 414 Angelica Hansen Strömsunds MK Arctic Cat F7 Team Sjödin 25 25 50

Pro Stock Poäng
Placering Startnummer Namn Klubb Märke Team Fredag Lördag Söndag Totalt
1 10 Pierre Norling smk Söderhamn Mach-Z Hellströms/p&p racing 100 50 100 250
2 666 Trond Lundberg Alta SSF (Norge) ski-doo Team ARS 75 75 150
3 1015 Ragnhild Melting Verdal-SSK (Norge) A/C 1004 Team ARS 75 25 25 125
4 1077 Alf Einar Ervik Verdal-SSK (Norge) A/C Aarrow 100 100
5 58 Alf Rønne Singsås MK (Norge) yamaha viper 800 Singsås Motorsport 50 50
6 77 Jörgen Wikberg Skellefteå Polaris Storm 50 50
7 26 Vidar Kvernmo Verdal-SSK (Norge) Ski-Doo 25 25

Open Mod/Fuel gr2 700, 800 Poäng
Placering Startnummer Namn Klubb Märke Team Fredag Lördag Söndag Totalt
1 813 Ulf Andersson Matfors SSK Ski-Doo Mach Z 75 75 75 225
2 111 Aleksander Nordgaard Kirkenes MK (Norge) Polaris IQ Mikalsen Motor 25 50 100 175
3 44 Angelica Hansen Strömsunds MK Arctic Cat F7 Team Sjödin 100 50 150
4 203 Stefan Haglund Strömsunds ssk Skidoo 600 100 25 125
5 207 Marcus Georgson Nipstadens SK Yamaha Outlaw Sledracing 50 50
6 201 Mikael Falegren FSF Nord Ski-Doo 600 Gällivare Motor&maskin 25 25

Open Fuel 1600 Poäng
Placering Startnummer Namn Klubb Märke Team Fredag Lördag Söndag Totalt
1 7 Morten Rushfeldt Kirkenes MK (Norge) Arctic Cat Thundercat Tana dragracing team 25 100 100 225
2 188 Niclas Ottosson Frostvikens SK Yamaha RX-1 Ottos motor 100 75 175
3 122 Bjarne Hägglund Skellefteå ms Crank Shop B.Hägglund Racing 75 25 75 175
4 127 Raghild Melting Verdal ssk (Norge) Ski-doo Team ARS 50 50 100
5 100 Patrik Norberg Matfors SSK Polar 1000 Norberg & Junggren 50 50
6 15 Bjørnar Mikalsen Kirkenes Motorklubb (Norge) Polaris ProXR Mikalsen Motor 25 25
 
DUDE, YOU CAN LEAN ON THAT JETTING ALITTLE MORE THAN NORMAL WITH THAT 02 SRX. THAT DCS LITE WILL TELL YA IF YOUR TOO LEAN. 3:16 (tony)
 
yea but if your drag racing it will retard the timing when you dont want it to. if you unplugged the sensor, that would be bad too cause you might be eating pistons just over some fun

just have to test the jetting to see how far you can go with it during some test runs. you want to jet it to a point where the light doesnt go off
 
132.5, 132.5, 133.8 works pretty good in summer conditions!! I use 20/39 gearing, super tip weights, 15mm rollers, advant-edge helix.
 
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yammiegod,

thats what i was pertaining to. I tested 130's all the way across got nothing but a flashing light. I went with 135's, and light quit flashing and it was safe just enough for 500 feet in the summer. didnt flash anymore after that.

Srxspec, what distance were you running with the 20/39? just curious 19/40 worked best for me in 500 feet with 9 tooth drivers. 21/39 with 8 tooth worked good for me as well.
 
tom, the difference in rider weight can easy account for the difference in gearing there. Speccerhead is a lighter guy than you are and a 0.15:1 difference in gearing isn't much at all.
 
Not to hijack this thread, but you guys don't warm up your sleds at all before a run do you??? Only grass drag I've ever been to was in Parkston, SD last year. Seems to me they only start the sled up, rap it up on the stand and run 'em. I realize you don't want to let the motor run anymore than you have to because they get hot so fast in the summer, but is there the possibility that the motor could cold seize or isn't that possible since you're only going a short distance and the motor warms up much faster since it's summer.
 
tomseal6, 19/40 gearing is only good to 85 mph at a 1:1 clutch ratio. We run upwards of 89-90 mph in 500' and 20/39 gearing is good for 91 mph at a 1:1 clutch ratio. It's just what works for us.

shortstop20, yes you can cold seize the engine if you don't put enough heat into it. Usually you'll want the water temp around 100*F. It doesn't take much to build water temp in the summer time. Hopefully you can make it to Parkston on Aug 6!!
 
132.5, 132.5, 133.8 works well in most conditions guys! The SRX's like to be a little richer rather than lean. They will fall off on top end when too lean.
 
My motor is always at 100 degrees, never gets any cooler around here anymore, went on a poker run two weeks ago, 117 in Pierre. :whine:
 
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