I am looking to buy a set of dynoport or htg pipes for a gen II xcr 800. I know the stockers are good but thought the addition of porting, these would help out. Please let me know if you have a set I could buy. Thanks, Blake

dont waste to much money on a set cause the dont put out what they say at all cheaper places to put iut

Doug Flannery recommends Dynoport or HTG for the xcr800 with the dynoports making just a little more HP than the HTG. You can,t go wrong with either one. Ifs theres someone who knows more about xcrs than him I,d sure like to meet him.

I believe that if your going stock, that is the case. Once you add porting, the pipes help quite a bit more...from what I have been told. FWIW

Trust me on a timer they dont do much; it dont lie

Agree. This has been my experience also. Dyno peak hp increase doesn't always translate into field acceleration performance.

Phil

how about crankshop pipes how meny hp

Dependent on so many variables, this is a redundant argument. All pipes make similar HP when properly setup on the same sled. I say the tuner is the difference, not the timer. Ask any race car diver in a spec car.

i disagree, when setup right, they will help quite a bit, every little bit helps, remember drag races are won by inches, 1/100 of a sec. can mean you won or lost, how far you won by is only important to the the guy behind you, 2nd place is just the first loser! i have seen a lot of good runnen xcr8s, even got a couple, never had a stock pipe xcr8, give me any trouble, YET !

HEH, HEH, HEH! Winter's coming.

Phil

Phil, is your's running stock pipes?

Don

How about a set of lectron carbs instead of pipes?

for a trail sled good porting with bored carbs and some head work with the stock pipes and she is a screamer. I have beaten many piped xcrs with the pipe companys clutch setup with my stock pipes and my clutching. you cant beat the stock pipes for all around drivability and mpg. the little bit of oomph out of 700 dollars of pipes isnt worth the amount of gas you can buy for the same 700 dollars. for the price of the pipes you could buy enough gas to put on 3000 miles easily. and how the last few winters have gone that would be almost 10 years of riding for me.

i am sure there are exceptions, when you add a turbo! phil , bought a place in waters, make plans to come up and play. lots of trails,roads, and some hills to play on. see ya.

Yes it is Don. I've tried the Dyno Ports with no acceleration benefit on a stock ported engine. My brother-in-law has been trying to beat my sled since we both bought them new in 2000. He first went with Hot Seat pipes and lost performance. The racer friend on ours who talked him into it couldn't believe it. So, he went back to stock pipes and beat several sleds running Hot Seat, HTG, , HTG w/shim kit, and other pipes. Decided he needed the new SLP heads I bought for mine and never installed. Installed them with no better results. He and I have drag raced the same fast sleds at Lost Pines Lodge. He lost, I won. He stayed with stock pipes until he wrecked his sled and bent the pipes badly. He then bought my Dyno Port pipes because he couldn't find any stock ones. It again ran the same as the stock pipes. He then started having water pump leakage problems and damaged his cyls. Had them replated several times. Then, in desparation, had Flannery port the cyls and recut his SLP heads. (Flannery doesn't like the SLP heads for trail riding on pump gas). It finally was a back and forth racing situation with him and me. But, after numerous engine burndowns, he was getting paranoid about running jetting that was as lean as me (400 mains) so I continued to have an advantage. I was constantly tweaking my clutching and getting faster and faster. He's not a clutching guy. He has tried to copy all my clutching mods (that I'll tell him). This season, he bought one of my Cat secondaries with 50 degree Super Torquer variable radius helix. I still have the same pistons and rings as when new after 4000 hard use miles. I'll be replacing them this season. I'm planning to dyno test my sled before and after. The BIL and I will be heading north at the first good snow. I'll report results later in the season. Heh, Heh, Heh.

Phil

PS: Here's some pics of the first grass drag we've had this year at Berville, MI yesterday. XSKIER ran my Full Mod 600 XCR (on left) that's for sale but it was way too dusty so we quit running.

Agreed. You can spend money on all the latest over rated go fast parts, or spend it more wisely on fine tuning what you already have.

A guy at the grass drags yesterday had just had Flannery port his 800 MXZ. He then rejetted and clutched it. It had a Cudney Racing head on it. It was slower than when he first bought it. NOT BECAUSE OF ANYTHING DOUG HAD DONE, BUT BECAUSE HE WAS THROWING EVERY GO FAST PART INTO IT WITH WORSE AND WORSE RESULTS. It was over revving off the line, tearing up belts, clutches running hot, plugs looked lean, one Rave valve was leaking at the diaphram.

I'm going to go over it for him, then dyno it. Finally, set it up better.

That's a great area to ride in Gary. We often stay at the Park View motel by Otsego Lake on Old 27. We'll surely see you there this season.

The turbo sled will be my 94 Storm with 450 original miles on the chassis and a stock 800 XCR engine/pipes. It will be my mostly lake racer. Has light weight trailing arms and hood, HD 1/1/4" driveshaft and 1 1/8" jackshaft w/15 link drive chain and sprockets. Speed track with Hooker Kit and ice picks. I flipped it on White Lake in 1998 at 110 mph, bought it back from insurance for $420 and sold the Storm motor for $2200 and the PSI modblaster pipes for $400. So, it's a natural for the new engine and cheap. I'll leave the 2000 XCR basically stock for dependability.

Phil

Sounds like a sweet project. Your not going to keep the 8" rear are you? And everybody said the 94 storms werent fast.

I knew you said you ran stock pipes, but I was curious if you ran them also on a ported motor.

Don

she will love ya with set of dynoports

at that im set up for-5 to30 deg.with my jets 420 430 420 and she loves it.bring on the snow boys

Yes, I'll keep the 8" skid. It is fine for what I want out of it. The 94 Storms were faster than the 93s when properly set up. First thing you had to do was remove the 1.8 mm float needles/seats and install 1.5mm to stop flooding. Then install the original 93 Storm flywheel for 6 degrees more spark advance at low rpm, 1 degree more at top end. For even more, install Boswell moded carbs w/Cyclers, Z-16 adapter plates, V-Force reeds. Then install PSI pipes and coolant system mods. 150+ hp @ 8500 rpms with stock porting. Violent throttle response.

But, this one will use the 2000 800 XCR engine with stock pipes. A lot more low end torque due to VES.

Phil

Hey Phil are you just dyno tuning the motor or are you going to clutch the thing as well? I know he has bought 3 clutch kits for that MXZ....that sled ran decent last year for what it was but like you said he just keeps buying more and more go fast parts with no tuning.....should I be worried about adding a few more goodies and tweaks to the "440"....lol

And by the way that little mono block 600 ran pretty darn strong out there this past weekend......

That little 600 is pretty fast. It has a well known reputation up north. It was still jetted for winter and ran well in that state. Couldn't hook it up at 6500 engagement per Andy (XSKIER).

Just started looking at the MXZ yesterday Steve. Plan to dyno it after total review of major factors. Has a Cudney cyl head on it and Dyno Port pipe. Right off the bat, compression is 135 PTO, 150 Mag. Mag side Rave Valve diaphram is leaking also.

Today, crank index, cyl leakdown testing, crank runout, carb vent analysis (partially disconnected-has DPM), clutch alignment, piston squish and a few other things.

Phil