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All of my engines will so easily pull the weight of a 225 pound rider, if yours would, you would not have to have 3 cylinder and nitrous.

The best builder is the one that makes all his customers winners at whatever track they race at. If I lay down 600 bucks for porting, my bike better be the one that wins and what his engines do at PS with a 90 pound crackhead riding means nothing to me. To spell it out, if a builder with a world record setup for a 90 pound rider sold me that engine, it would be worthless when it bogs every time I want to race. At the last HQ ride there were DM's bogging down in the middle of the track, Ill bet the owners do not want to hear how fast the bike will be at PS with a 90 pound rider from his builder!

How many people would like to see all the engine builders race one on one with similar sized engines with riders close to the same weight at next years HQ Ride @ Little Sahara?

Just a little info on the Sniper drag pipes that windycityjohn says are no good, of the best of the best 4 mill DM gas dyno sheets I have, Shearer did end up over 3hp short. I put those pipes on Brad Painters 465 gas cub, it dynoed over 114hp (can be seen in the Passion 465 gas dyno test video). That is 6hp stronger than any Shearer pipe had made. Brad (banshee332) ran that pipe all last year and won the BBDR 430 to 525 class championship easily with with no challenge from any Shearer piped bike.

I have not seen anybody get anywhere close to what Passion gets out of a T-Rex.

A T-rex cylinder will run as good as any other cylinder of the same displacement when ported correctly. At the last HQ ride, Jason Kearns 535 T-rex was as fast or faster than all the bikes there around that displacement. I made a couple passes on it, and it will easily give any 10 mill (610) DM a run for its money. I was told it has already taking down one of the site sponsors 10 mill DM.

Brad, I can see you did it again last weekend, congratulations on your 6th win of the year. With 470 accumulated points, you don't even have to show up for the last two races to win the 431 - 525 championship. Great job!

Brad has a huge performance advantage now. Why in the world would he want an engine that runs less MPH and stops accelerating before the finish line, those are the very same engines types he can so easily dust off now without even trying? When Brads bike would only run 96 MPH, he would win one race per year. Now that his bike runs 100+MPH, he has won 5 races out of 6 events, not to mention he has outran DM's on alcohol that have nitrous oxide. The rules state, no paddles. Just how fast can the 60 foot times be under those conditions? That is why he said the 60 foot was slow. Anyone that thinks a bike with knobbie tires that can run over 100 MPH, within 500 feet is not impressive. Is not being realistic.

Congratulations out to Brad Painter and team Passion for the win Saturday at Blair Bedford dirt drags in the open class. Brad took down all of the alcohol DM's and Twisters and some had nitrous, his 10 mill cub ran a career best of 101mph on gasoline. That is 4 wins in the limited class and 1 win in the open class this year, way to go Brad!

The Dynasty 350 and the Fronius Magic Wave are the best tigs in my opinion. I bought a Everlast 250EX, they are a killer value at 2000 dollars, that's complete water cooler and everything to make it weld. They have a one called a 185 Power Tig Micro, it is ac/dc with high frequency (20 to 250 hertz) and ac balance (10 to 90 percent) for aluminum. Its only 900 dollars shipped (air cooled), it would actually do everything I weld. There are some very good videos on Youtube from Welding Tips and Tricks on both welders.

I got a new inverter tig welder and retired the old Syncrowave 250, as always I'm trying to up the quality of Sniper pipes. Here are two pictures of some aluminum work with the new tig. http://i854.photobucket.com/albums/ab110/photosrp/WeldedwithEverlast250EX001.jpg http://i854.photobucket.com/albums/ab110/photosrp/WeldedwithEverlast250EX003.jpg

"The Snipers weren't exactly tuned at the track, but were on the on the dyno runs." J-Madd, if the Sniper's were tuned in on the dyno, why would the bike run 82MPH in Missouri but only run 75MPH at Gilbert in the humidity? The Shearer's ran 80MPH at both places. There are some stock chassis dune bikes running 80MPH in 300 feet with Sniper in-frame pipes. The Shearers have a small piece of tubing welded up inside the stinger, they must be ran in a over rich condition or the engine will burn up. Sniper's will be way too rich to build heat without rejetting when going from SBSFOOFSCP to Sniper on alcohol. If the Sniper's were tuned in on the Dyno, how did you know?

Thanks Chris, I would have thought the atv dyno would read higher, what is puzzling is that both dynoes come on the pipe at the very same rpm but peak at different rpm's. All of the dyno runs I have with your pipe peak at 9900 to 10200 and take no more than 3.5 seconds. Very interesting.

Chris, If you have the ability to put run 2 and run 36 on the same sheet, it may make it easier to figure out why the big difference in peak power, being the same motor and pipes, the only variable being the dyno ... Thanks Gary

Yea, you can post it if you want. Post the 554 vs 492 run also, this will show how broad the power curve gets when the engine is laboring and is not allowed to peak at its natural resonance on the Shearer vs Sniper sheet, if you could overlay the run where the Sniper peaks at is natural resonance making peak power at 10200 would be good too. For the Sniper to be better on a 350, the engine should be tuned to make .23 horse-power per CC or be ran on methanol. Snipers may run very good on the little engines but they may not be the best for peak power on the dyno. On methanol RDZ says the Sniper will out perform all other in-frame pipes even on the little engines, we have not done that test yet on the little engines. Even on small engines where they do not make the most power, they may add performance by accelerating quicker.

When someone tells you they are bogging and wheeling up with 11 and 12 paddles at Little Sahara, then lose one race and then puts a 120 rider on it for the rest of the day, tells me all I need to know!

The design specs are for 197 exhaust duration and cylinder pressure of 100 atmospheres (a balance of timing and trapped compression). The dyno sheet shows the Sniper to have a broad power curve compared to the Shearer, that means its not peaking at its natural resonance. Being rich, too much timing, compression too high, not enough load and dynoing with a eddy brake can cause this, also gearing and mph on the dyno should simulate the mph as at the track and if two pipes peak at different rpm's, one should have gear added or subtracted to run close to the same mph, so they will have the same engine load. Mailman had some oof drag pipes and did not have time to tune them in, his bike was tuned in close for the Shearer pipe, so he ran them. Those pipes are in the dyno video with the silencers, they are on Brad Painter's bike now and he has won the first four races with them. After running Brad's engine, we realized that the 10 mill cubs are more efficient and are putting off more heat energy than we thought. Now we do not put any venturi or stuffer in the stingers of high output 465's on alcohol. Your Shearers have a 22.7 stuffer welded in the stinger and the Snipers has a 24.5 stuffer, this is one reason why the Sniper's run cooler than the Shearer's and needs less fuel to build heat. The exhaust duration of your engines should not be any problem, they have been tested on engines from 189 to 204 exhaust duration with very good results. The pipes would be a very good match for the 397, try them on that if you don't already have something that will break the record, it will have less intake volume and should be easier to tune with Lectrons.

Sniper pipes are designed to extract the elusive last 5 percent from engines capable of producing 41000 to 52000 joules per second. 397 to 465 cc engines fall in that range. On well built engines, power output of .245 to .25 horse-power per cc can be expected on gasoline, 8 percent more for methanol. Any 397's making less than 97 horse-power, or 421's making less than 104 horse-power, and 465's less than 114 on gas will benefit with Sniper pipes. Many of the top builders can produce these numbers easily with Sniper pipes. Most people know that Sniper use's resonance to boost power, but also and just as important the correct expansion rate is used. Heat energy output is calculated and the correct kh factor along with inter-median factors will allow the exhaust gases to cool without losing too much velocity. We build low kh factor pipes designed for the highest output engines. High kh factor pipes are more common because the have a wider window of engines they will run decent on. Low kh factor pipes will need good porting to run to their potential. High kh pipes will have the header and first two diffusers choked down and will have aggressive third and fourth diffusers, like a 18 to 20 degree last diffuser, the low kh pipes will expand the gasses earlier in the header and first diffusers, with only a 14 to 16 degree last diffuser for smooth expansion.

Matt and I waited until the sun went down on Saturday to try and get our match race in. He wanted to race as bad as I did, we both have something to prove. He did say Cam out ran the 4 mill cub I was going to race but had trouble keeping his bike from flipping over. Maybe there needs to be a rematch there next year? Sorry the race did not happen, we were 100 percent ready on the day of the race but the rain never stoped. I suggested we meet at a drag strip like Planetsand or somewhere. So the race may still happen.

Passion can deck it, he decks every Cub he builds to get the excessive durations down.

Its good to know there are builders out there that will build to the owners needs and not just do the one size fits all.

The idle kit will allow adjustment of the idle air / fuel ratio and just off idle, it will not effect high Rpm's where the power-jet comes in. The Lectron carb metering rod will only stop in four slots when adjusting. The idle screw will allow adjustment anywhere between the four slots, giving fine tuning ability for idle quality. This will allow the metering rod to be adjusted for mid-range performance to be crisp and clean, without having to supply the correct air / fuel ratio at idle. Sometimes when the metering rod is tuned to come on the pipe clean, the slide screws will not raise the slide far enough for a quality idle. This is another time when the idle circuit really helps because it will meter fresh air coming in through the choke horn that it normally would not have to blend out the idle We have been modifying all of our Lectron carb's with this kit for over 20 years. Adding this kit to carb's that are already tuned in will allow for even finer tuning of the idle and mid-range.

Sniper Racing Products has designed a simple idle circuit kit that will allow adjustment of the idle air / fuel ratio on Lectron carburetors without having to move the metering rod or idle slide screw. The kit simplifies tuning Lectron carburetors by 100%. Normally, the correct tapered metering rod has to be adjusted to within 1/4 turn for optimum performance. With the newly designed Sniper Racing kit, it will only have to be within two turns. Then, it can be adjusted in with the idle screw. The kit will include screws, springs, drill bits, a tap and instructions for easy installation. Kit installs by simply drilling two different size holes in the carburetor body (using supplied drill bits) and then using the supplied tap to cut threads in the carburetor body. Many people know Lectron carbs are very temperamental to tune in. Therefore, Sniper Racing Products has now simplified the tuning process. 1 carb setup- ($32) 2 carb setup- ($42) *Free-Shipping Included* ******Sniper Racing can install kits for a small fee. $25 per carb****** If you are interested in one of these new kits please PM me! Links to Pics are below. pic 1 pic 2 pic 3 pic 4 pic 5 pic 6

If the pulses on the dyno was changed 1 pulse it would read the same peaking Rpm as the Dynojets. Then the overlay would look totally different.

Bodiddly did the complete BBSFOOF and SBSFOOF Shearer test. He dynoed twice and went to Atoka. (421 cub on methanol) first test was geared for racing at 15/41,the BBSFOOF 91.0, SBSFOOF 98.0.The big split there is from the piece of tubing welded up inside the SBSFOOF's chocking it down to 22.7mm building heat faster while the big bores are 26.4mm. Second test was re geared to17 or 18/41, both pipes hit close to 113. At the track in Atoka both pipes ran about the same et. On a 397 the SBSFOOF Shearer should be faster than the BBSFOOF Shearer. It will like the choked down stinger.