srx just ain't competing with newer sleds

S

srx4life

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Joined
Dec 16, 2007
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58
Age
43
Location
iroquois falls Ont, Canada
hey guys, earlier this year I purchased an 01 srx 700 with 3700km's. I had done alot of reading about this sled and there seemed to be a buz about how fast this sled was stock. After my first ride I really wasnt impressed with the performance that I felt. I was expecting alot more from the sled. I had started with a stock sled and have since added a 1.25" ripsaw for traction, clutched using the added 4.5g rivet in the tip of the 8dn 20's with a www primary spring and in the secondary I am using a 50/44 helix with stock spring at 60 wrap. Since then i have raced many sleds in the 600 and 700 class and have not had many victories in the 1/4 mile runs despite of the dramatic difference from the stock set-up at the beggining of the season. The sled now pulls correct rpm's, runs strong but reguardless it just isn't producing results like most people are reporting.

I am down to adjusting suspension for weight transfer as my last option with this set up. The motor is strong and I have the track for traction. I am frustrated with this sled because the sleds I race aren't by any means race sleds only slight mods.

What are you guys using to keep up with the newer 600 and 700 sleds????
How do you guys adjust the suspension for maximum traction. I am 190lbs??
 

Top gun I am not looking for comparisons, I know the sled has potential, I have seeked professional advice on the mods i have done and still having a hard time with many newer sled's.I have gained alot from those mods alone trust me, I am not going backwards here!! I dont want any biased opinions here, obviously I am embaressed, i dont like to loose thats the reason i bought an srx. All my friends have early to mid 2000 sleds including f6's, rmk, summit, f7, rage, etc.... I do win the long run races but its just lacking in the 1/4 mile
 
If you want to be fast in 1/4 mile you have to set the clutches for 1/4 mile. Same goes for long runs. Both require different set ups. You can't have both. My piped viper is wicked fast in 1/4 mile, digs a hole then streches my arms, but tops out at 110 mph. I could set it up for more mph as the sled is very capable, but i like 1/4 mile racing. You just have to tune and keep notes till you get it where you need to be.
 
DUDE, START AT BASIS STUFF. CHECK JETTING, COMPRESSION, POWER VALVES etc. NOT A KNOCK HERE ONLY SLED ON YOUR LIST THAT CAN GIVE A 2001 SRX TROUBLE IS THE F-7. 3:16 (yammie tony)
 
carbs are clean and adjusted, I just checked Powervalves also cleaned and adjusted, Compression is between 122-125 in all three cyl. I know the motor has no issues, it runs extremely well, pulls hard to correct rpm's. Its either that I cant plant the power to the ground or that it just wont keep up period unless doing extensive work. I know that my srx 700 stock would not catch an F7. What are some specific set ups that work for suspension guys
 
Put the clutching back to stock and see what happens. My guess is your problem is in clutching. Do you spin alot without studs?
 
what do you want to do...win 1/4 mile or longer races....both require totally differnt set ups. You can get set ups that will kill in 1/4 and give you no top end.
 
Please don't take this the wrong way, but how much do you weigh? If you are a bigger guy, obviously that will have an effect. I think weight is something like 8 lbs = 1 horsepower. Meaning, if you can shave 8lbs off of either yourself or your machine (car, sled, motorcycle, etc.) than that it good for 1 extra hp.

Just an idea, no disrespect intended.

Please God, :letitsnow enough to ride!!!
 
I had the same problem. Could not beat to many sleds, I could top end them but in any kind of race I would just not hook up at all. That is intell I installed an edge skid. Now im beating alot of sleds out there. Now the sleds just hooks up hard and holds the skis about 6" high. For me it was all in the suspension. The first time I took it out with the edge skid I had it set for Max transfer and I could not keep the skis on the ground at any speed. Thats how much of a difference it made for me. I would say look at your suspension. If you dont want to swap it out look at getting some transfer rods.
 
johnnysrx thanks for the advice, thats the kind of unbiased information that i am looking for. The truth is that I am by no means a strict racer. I line up every time i go out with the guys but not at any organized race track. My concern is that everyone that has a stock srx seems to talk about their srx and how fast they are stock. Well the truth in my opinion is that they were a fast "stock sled" for their day, however it seems that people arent willing to accept that many new sleds can now perform just as well stock as the srx stock. Dont get me wrong I know this sled has alot of potential to be killer if you have the $$$$ but keep in mind I am not racing hardcore guys and they can still take me in the short haul with their barely modded sleds
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Beacuse my sled runs so good I'm having difficulties believing that the stock guys are doing so well when my clutching and track combo has given me much better performance than stock and I am still having a hard time.

BTW guys im obviously not trying to knock the srx but after all the reading, and add ons that I have done to try and slap the cats and poo's around, I'm just alitle discouraged. I've heard too many good stories about this muscle sled to not raise the issue.

I beleive that I may be able to gain alot from suspension tunning. I truly beleive this is where I am missing the boat and any advice to set up this stock suspension is appreciated..
 
What surface are you running on? Do you have adjustable transfer rods? What do the plugs look like after a long run? We need more info.
 
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To answer your ? how do you set a proaction for transfer and traction.Look at your rear shocks.Is the small one charged or has it gone weak?If it is alright let the limiters right out and give it more spring tenshion.Has the big shock spring been set to tight to hold up the weight of the sled or to compensate for going weak?If it is stiff it will not help transfer.Put it on the bottom setting were it bolts on the front,and maybie let the spring off some.Now if the tansfer rods have no more than a inch of travel on the top get them another half a inch by cutting the nuts down or removeing the bottom one and over tighten the top nut so it will stay there.Transfer rods are not a mythical way of getting transfer they simply give you more gap on top and a way to adjust for less.
 
For the most part your clutch set up isnt really a "Lake/MPH" set up. Its similar to the set up Im running which is Wh/Wh/Wh, 8DN-20(Loaded with 4.5 rivets). 53/41(RX1 helix), and Green Sec.(Wrapped 70deg). Which is "SUPPOSE" to be a good improvement over stock(for trail riding), does that means its always true from my sled to yours, of course not they still can have there differences. Esp. when you dont stay on top of things like carb cleaning, PV adjustment, clutch cleaning/alignment, new belt(when needed), fresh rings every 3000 miles, track alignment/adjustment all things that can cost you HP and/or MPH.

What RPM does your sled engage at?
What RPM does it run at when your W/O?
What kinda conditions are you running in?
Are you studded?
Is your sled stock besides the clutching?
Are you running a Yamaha DN belt or A/M???
 
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What RPM does your sled engage at?-------------------near 4000 rpm
What RPM does it run at when your W/O? --------mostly 8500 rpm sometimes 86/8700
What kinda conditions are you running in?---------hard packed below -10 deg.Celcius
Are you studded?--------------------------------NO/ 1.25 ripsaw
Is your sled stock besides the clutching?----------Yes
Are you running a Yamaha DN belt or A/M???-------DN
 
that ripsaw may be holding ya little, track overly tight? should just
"creep" when idleing or with a little push from finger with the rear off the ground.

belt deflection/sitting in the secondary right? what gear?
 
Just a little comment on the srx falling behind compared to other sleds. The SRX is still one of the fastest on radar in its class on ice. not to many sleds come close to beat it in 2000ft on ice. Stock to stock.
 
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