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  • Users: cycle
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  1. cycle

    Methanol fuel contamination?

    I know when we ran an alky injected funnybike I learned very quickly that color anodized fittings needed to be checked and cleaned often. As you probably know there is a big difference between color anodizing and Hard anodizing.We used as many hard anodized fittings and filter housings as we...
  2. cycle

    Superchargers

    Remember to , A good oil supply from your engine will carry a great deal of heat away from the turbo"s bearing. Use the correct diameter line for the oil feed and an ample (read large) line for the drainback to the oil pan.. Good luck with your project. I would like to here more about it...
  3. cycle

    Any Hilborn Mech Fuel Injection Experts?

    Bob,Not quite an expert but,Have a friend with a Kawasaki powered Sprinter. Hilborn injected on alky,same problem you had. Turned out it was simply to rich.. Leaned it a little at a time and now runs excellent. Sounds like it"s just to fat...Good Luck..... Craig
  4. cycle

    air filters/what happened?

    Greg,Thanks for the reply.It is possible someone,over the weekend,put up a "poor" reply.As it was when I left it everything seemed fine??.. While I believe the red flag option is a good idea,I hope it does not discourage people from starting a thread,posting on it or replying.I do...
  5. cycle

    air filters/what happened?

    There was a thread on here just recently about air filters. It seems as though the thread got pulled? Just curious as to what happened and why? Haven"t been on my computer for over the weekend so ,again , just wondering..................... Craig
  6. cycle

    Gapless Rings-Opinions

    Something David failed to mention,Typical piston to wall clearance on forged pistons for us is .001 to .0015.. Ring end gap for his diameter piston/application is .008 to max .010.. You see his clearances were way big,yet this engine did not smoke,held leakdown to max of 4%!!Engine performed...
  7. cycle

    VHT / Piston Crown

    Yes,I know. An old thread. Well I had to tell everybody I just found that old magazine article.Finally!! It was a 406 cu.in. Chevrolet built by Joe Sherman. A pretty well known engine builder & well respected. Anyway,I rechecked the article and the claim was 40 h.p. gain by just spraying the...
  8. cycle

    squish or quench area

    It is my understanding that a engine with large? squish areas are also less prone to detonation.In that case The slight increase in compression(and the risk of detonation)is more tolerated. This is assuming a properly designed combustion chamber. Current streetbikes are 12:1 compression ratio...
  9. cycle

    Gapless Rings-Opinions

    You know,You would think that this would be the ideal setup. Apparently, not so!! I guess it"s easy to convince myself that a gapless ring is ideal when in fact a high qaulity conventional ring is proving itself to be the very best setup.As much as I hate to say it, I believe for now ,I...
  10. cycle

    Gapless Rings-Opinions

    Interesting,Total Seal does advertise/offer low tension rings.I believe collectively,in a big V-8 , that this may account for a slight increase in power.Not so much for the M/C engines I build. I will say on the subject of ring "oil pumping/collecting" that is a very good possibility...
  11. cycle

    Gapless Rings-Opinions

    Iveymike,It was heresay and I am inclined to agree with you. 100 horsepower sounds like alot to gain from just ring friction.In the quest to "free" up additional horsepower,as in two ring pistons,in the game of drag racing even a tiny amount is important. As you know,races are won by...
  12. cycle

    Gapless Rings-Opinions

    Gary,yes we do use gas porting on certain engines. Larry,A very few companys have (in the past)come out with 2 ring pistons. A couple guys have used them with very good results.While I have no comparitive dyno runs , the 2 ring setup did well on the dragstrip. Ran very "dry" and made...
  13. cycle

    Gapless Rings-Opinions

    Larry,I worked for Jim after he moved from the airport area to a huge shop in Lithonia Industrial Park,Lithonia,Ga.. Yes we did have the Superflow Flowbench,Superflow Dyno and a second dyno right next to each other.Can"t remember what brand.When I went to work for him apparently Buick had...
  14. cycle

    Gapless Rings-Opinions

    Larry,I will gladly post results on engines I dyno. Unfortunately it will be a few months till this one is done.In answer to your engine unseating the top ring , years ago I worked for Jim Ruggles for a short time.He also felt this was a problem.Hence ,He would not advocate the use of gapless...
  15. cycle

    Gapless Rings-Opinions

    I tried these in a engine I built for racing. Leakdown was excellent,less than 2%.. But, at the time I had no dyno,hence no way to know (other than leakdown) if they were truly beneficial. Was it money wasted or well spent. I normally use a traditional steel alloy/moly top ring , a ferrox coated...
  16. cycle

    exhaust question

    Do you feel as though you have lost low end torque after your modifications?? All indications are you should have made more torque,possibly at a slightly elavated r.p.m...If you feel a loss ,it is possible one or more tuning parameters are "off".. Engine modifications need to work as a...
  17. cycle

    finding exaust valves

    I believe the real problem here is that SBC has to run O.E.M. replacement valves. Of Course most are of the 2 piece variety. And there in is part of the problem.. They will not hold up to the rigors of his type of racing. Max r.p.m. for an extended period of time,extreme heat and pressure. No...
  18. cycle

    finding exaust valves

    Two valve manufactures would discount a bad batch problem.Now I want to know what is happening!! I can only surmise the only common denominator left is heat or excessive heat. No matter , A two piece valve is probably not the best choice. I am a little suprised that valve bounce did not intrigue...
  19. cycle

    Windage trays

    Strange,In that Larry did not see an increase in power. I have read more than a few reports on the benefits of a windage tray.But I also realize the dyno doesn"t lie. Not to get off subject, Now crank scrapers seem to be the rage for controlling oil on the crankshaft,the results also seem...
  20. cycle

    finding exaust valves

    I hear you Rod.. SBC , I think we all have been bitten a few times by new parts. Again it is going to happen on occasion. Go racing and you open yourself up to failures.I have been enjoying the punishment of racing for many years!! Anyway, Hereis something I found that might help you.. They...

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