Eagler's Nest

General Category => Off Topics and General Interest => Topic started by: s johnson on September 17, 2014, 10:14:38 PM

Title: New Video of the Slug Testing the new richer Jet needle for the 32MM mikuni car
Post by: s johnson on September 17, 2014, 10:14:38 PM

http://youtu.be/GJNdPNO3G2k (http://youtu.be/GJNdPNO3G2k)


New video of the Slug

Title: Re: New Video of the Slug Testing the new richer Jet needle for the 32MM mikuni car
Post by: ParQld on September 17, 2014, 10:28:41 PM

Thanks Scott, I enjoyed the ride :)

cheers Paul

Title: Re: New Video of the Slug Testing the new richer Jet needle for the 32MM mikuni car
Post by: MrG on September 18, 2014, 12:00:22 AM

Scott
for a 4cyl ( 70hp) do you recon 2 x 32mm carbs would work ?

Title: Re: New Video of the Slug Testing the new richer Jet needle for the 32MM mikuni car
Post by: Rich Snyder on September 21, 2014, 06:48:59 PM

Hi Scott- In the video, you write that you went to a smaller jet to lower your EGT . In the thread by Bob Wood; he has been trying like hell to get his EGT to INCREASE by using progressively smaller jets. Could someone please unconfuse me?? Rich.

Title: Re: New Video of the Slug Testing the new richer Jet needle for the 32MM mikuni car
Post by: s johnson on September 22, 2014, 06:51:02 AM

I'm sm talking about the jet needle and not the main jet. They are different and are for different ranges on the throttle input. The thinner jet needle allows for more fuel which lowers the egt temp.. The smaller main jet reduces the amount of fuel increasing the egt.

Title: Re: New Video of the Slug Testing the new richer Jet needle for the 32MM mikuni car
Post by: Rich Snyder on September 24, 2014, 05:43:55 PM

OK, I understand now. Thanks for the education. I am a long way off from tuning carbs, (unfortunately). Rich

Title: Re: New Video of the Slug Testing the new richer Jet needle for the 32MM mikuni car
Post by: s johnson on September 24, 2014, 07:40:40 PM

No worries mate. It's all a learning experience. I'm sure still learning anyway. My mid range was way to lean that's why I tried a thinner or leaner Jet Needle. So Far it's perfect.  I have several flights now and seem just right. This is for a single 32mm carb though and not a dual carb set up. Experimental  aviation at it finest...

Scott J.
The Slug Musher
as Jimbo says......
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