Speedwerx DryPipe - Any Good?

9

93SJ760

X-H
Location
Timmins, Ontario
I currently run a Blaster B-Pipe with Modified (-1.5") mod chamber on a 760 and a regular S-Jet B-pipe mod chamber on a 701 both 62T. I recently came across a Speedwerx Dry pipe that I'd like to try. I'm assuming that the chamber is their race chamber as I'm buying it off an ex racer. I've read in the past that they have a couple different chambers but can't find any info on the other chamber on their website.

Is the chamber that I'm most likely getting with it going to give some good low end for flat water freestyle/free ride?

Anyone run this chamber with good success? I just dumped a FPP Dry pipe (Big blue body) which I liked the power it had but just didn't like changing couplers every couple of rides.

I need to decide if I'm keeping it for myself to swap with one of my B-pipes or if I should install it on my buddies stock 62T?

All you guys that have tried this pipe out let me know your thoughts.

Thanks,

Tyler
 
Matt_E

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
Excellent pipe. I ran it for a while in a freestyle application (the race pipe). I found it to be just as good as the B-pipe (SJ Mod and Blaster mod) overall. Bottom end was slightly worse. Overall power was MUCH better - especially mids and tops. Insane power.
Throttle response is slightly better w/B pipe.
I had issues with O-Rings popping and alignment, and wasn't patient enough to fix it.
 
MADMAT

MADMAT

Location
Ohio
It clogs if you don't run a strainer, it needs modded to stop trashing couplers......BUT I FRIGGIN LOVE IT! It hits hard everywhere if set up right.
 
spdwrx701

spdwrx701

X
It's a powerful pipe. Hits real hard on my limited. Once you get coupler right you will have no problems. I've never had a clogging problem either.
 
djkorn1

djkorn1

kidkornfilms
Site Supporter
Location
Cleveland Ohio
I agree with Matt. The pipe f'n rips. Make sure it is lined up right and you HAVE TO run a strainer. Darin will agree with that, too. Vogi, post some pics of your mods to the the top of it so it lines up and of the strainer.
:bigeyes:
Madmat has his perfect now!
 
Big Kahuna

Big Kahuna

Administrator
Location
Tuscaloosa, AL
One thing to watch out for is detonation.......... If you are running stock cylinders then you are fine............ But, if you add Porting, then you will need to run Race gas, or get an Advent ignition to retart the timing at the upper RPM range, or you will start smoking pistons......... MSD Total loss will work also.........

Place the pipe on the motor, look and see how the lord mounts line up with the mounting tabs, if they are not directly under the holes, you need to re drill or grind out so they will, otherwise you will be putting the pipe in a bind which will lead to blown orings and couplers..........

To give an idea about the octane and domes, go to ADA's websight, they state with 35cc domes for a 701 that 93 octane will work, unless you are running a dry pipe, then you need to run 100 octane..........
 
9

93SJ760

X-H
Location
Timmins, Ontario
Detonation?

This may be an issue for me.

I do have some porting done on big bore 61X cylinders. I'm running about 785cc I believe and the porting isn't too aggressive. Nice and rounded on top and not extremely wide.

MSD Enhancer with timing advanced a few more degrees down on the stator. I am running a Riva head with aprox 185psi on my gauge. I am running aprox 0.045" of squish.

I think I should change my set-up before testing out the speedwerx.

Fattening up the jets on the top end to keep things cooler won't help the detonation? What about dual cooling to keep the head as cool as possible?
Isn't deto from advanced timing and deto from too much compression two different issues???

From too much compression or lean mixture you get hot spots and pre-ignition.

I guess deto from ignition timing can just be caused by differences in flame propagation or port timing?
 
xjetrider

xjetrider

X
Location
St Augustine, FL
Are you running a flat-top set-up? Or 760 domed pistons? And do you know what cc domes you have and your bore size?

As far as porting goes with our pipe, you should be fine running a ported cylinder with our pipe on 92 octane. The thing you have to be careful of is ignition timing and compression. If you run your MSD enhancer with our pipe, make sure you set your static timing back to stock. To be safe you might even want to put a timing light on it and make sure the timing is set correctly.

As far as compression goes, on a 701 with our pipe, you want to run 36cc domes to be safe on 92 octane. Let me know your set-up though and I can tell you what cc domes you need to run.
 
SuperJETT

SuperJETT

So long and thanks for all the fish
Location
none
I ran the SW freestyle dry with ported cylinders, 44's, MSD t/l on pump gas and it was fine. I ran into deto problems after switching to a stock modded cdi with advanced timing. deto comes from too much heat/too much timing/too lean jetting, the combination of those or too much of any one can cause it. Mine was the timing. Pipes don't kill engines, people do.
 
Matt_E

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
Another vote for Pumpgas....I ran 190psi on a ported cylinder with Total Loss, 35 deg initial advance, and 15 deg final (or 19?) at 8500 - all on 93 octane.
Granted, I was very careful on the throttle - hardly ever a WOT run, and even then only a couple of secs (before I get thrown off....LOL)
 
Big Kahuna

Big Kahuna

Administrator
Location
Tuscaloosa, AL
Matt_E said:
Another vote for Pumpgas....I ran 190psi on a ported cylinder with Total Loss, 35 deg initial advance, and 15 deg final (or 19?) at 8500 - all on 93 octane.
Granted, I was very careful on the throttle - hardly ever a WOT run, and even then only a couple of secs (before I get thrown off....LOL)
Click to expand...

But that just it, you ran Total Loss where you can retard the Timing.....

Dont run that setup with an enhancer.......... Toast, yes, you can turn back your static timing, but then you are kinda defeating the purpose...........
 
spdwrx701

spdwrx701

X
I run the sdwrx race pipe with an enhancer and 37 cc domes. (No Porting) Timing is stock and I cracked two domes running 91/92 octane fuel. I now mix 1 gallon of 110 with 4 gallons of 93/94. I just ordered 35cc domes and I plan on running a 50/50 mix of 110 and 94 octane. I do however run WOT for long distances.
 
Last edited:
Big Kahuna

Big Kahuna

Administrator
Location
Tuscaloosa, AL
spdwrx701 said:
I run the sdwrx race pipe with an enhancer and 37 cc domes. Timing is stock and I cracked two domes running 91/92 octane fuel. I now mix 1 gallon of 110 with 4 gallons of 93/94. I just ordered 35cc domes and I plan on running a 50/50 mix of 110 and 94 octane. I do however run WOT for long distances.
Click to expand...
What cylinders are you running???
 
Matt_E

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
norcal ex said:
they are good pipes, but to do anywork to the ski or the engine or to tourque the head requires removal of the chamber...pita
Click to expand...

With a very small hull modification, that chamber comes out in under 3 minutes.:biggthumpup:
 
You must log in or register to reply here.
Top Bottom