The same thing happens at 1/8" Any lifting of the air piston causes the RPM to drop. The only difference is, that 1/4" almost kills it. Lifting only 1/8" causes a big dip, but doesn't kill the engin
Message text written by Chad Jester RPM to drop. The only difference is, that 1/4" almost kills it. Lifting only 1/8" causes a big dip, but doesn't kill the engine. OK! To incentivize the group, I'll
In addition, if you could somehow set them rich enough to satisfy the "lift the piston" test (the carbs are designed to prevent this); the mixture at cruise would be way too rich. The "lift the pist
Dave, I respectfully disagree with you about the lift-the-piston technique for ZS carbs. I believe that the technique WILL work. The carbs do not know what sort of profile is on the needle. Additiona
Tony, I disagree with your disagreement. Lifting the piston slightly leans the mixture, due to lowering the air velocity through the venturi (which weakens the Bernoulli effect and so draws less fue
Dave Massey is very likely on the money with the bypass valve being the problem. I was working on my friend's TR7 (with similar carbs) and had problems with the idle being too fast. He told me about
Message text written by "Anthony Rhodes" for ZS carbs. I believe that the technique WILL work. The carbs do not know what sort of profile is on the needle. Additionally, as far as the needle goes, li
Dave, After some thought, now I agree with you. After I replied to your message I saw Randall's. I then gave more thought to the issue (better late than never). I realized that I did not KNOW the eff
Message text written by INTERNET:spamiam@comcast.net message I saw Randall's. I then gave more thought to the issue (better late than never). I realized that I did not KNOW the effect of any potentia
Ok, Dave, now I'm going to disagree with you. The SU design was every bit capable of being "cleaned up" as the ZS was, the switch to ZS carbs was for economic reasons, not engineering ones. Comparin
Message text written by "Randall" for H6 True but even these don't tune like the old H6's or even the HS6's. Most likely. Dennis Wilson raced a TR6 in the late 70's (whn the factory was campaigning t
Yes, ZS's run fine when functioning properly, but their complexity gives more opportunity to malfunction. personally, I would not say that ZS carbs are superior. Both SU and ZS use a needle to fine t
-- Original message -- Dennis was/is somewhat correct. The fuel flow, as measured on a flow bench, was greater in the Strombergs (pre-emissions) than the SU HS-6's. This was researched and checked ou
Message text written by INTERNET:spamiam@comcast.net more opportunity to malfunction. use a needle to fine tune the I think you mean venturi vacuum. is not intrinsically better than SU's. is not supe
Message text written by INTERNET:emanteno@comcast.net bench, was greater in the Strombergs (pre-emissions) than the SU HS-6's. This was researched and checked out when a certain vintage race TR4 swit
Hi Guys I'm afraid you are all missing the point, the TR6 only has one proper fuel system, injection! Fit this and cure your ailments! I am aware there are excuses for not doing this but hey on a lon
Message text written by "Graham Stretch" system, injection!< Graham, you should remain silent on this point. Once the rest of us realize how superior these systems are to carburettors and start to sc
The same thing happens at 1/8" Any lifting of the air piston causes the RPM to drop. The only difference is, that 1/4" almost kills it. Lifting only 1/8" causes a big dip, but doesn't kill the engin
Message text written by Chad Jester RPM to drop. The only difference is, that 1/4" almost kills it. Lifting only 1/8" causes a big dip, but doesn't kill the engine. OK! To incentivize the group, I'll
In addition, if you could somehow set them rich enough to satisfy the "lift the piston" test (the carbs are designed to prevent this); the mixture at cruise would be way too rich. The "lift the pist