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#1 SU needels

Posted: Mon Apr 14, 2025 11:49 am
by William Norway
I have now done the conversion from Stromberg to Su carbs done now, i also changed the air filter to ot this ITG frefolow
https://etypeuk.com/services-by-e-type- ... -series-1/
and full exhaust form Classicfabs
https://classicfabs.co.uk/e-type-full-m ... st-systems

i now have the problem that the car runs lean, does anyone have this como and can advice me on that needels to go for ?

#2 Re: SU needels

Posted: Mon Apr 14, 2025 12:19 pm
by bitsobrits
I run a similar setup (with gas flowed head) with UO needles to good effect.

#3 Re: SU needels

Posted: Mon Apr 14, 2025 5:08 pm
by Gfhug
One problem the larger bore exhausts can cause is a dip in torque around 2500 rpm, which is right in the middle of the operating rpm for the E Type. There are discussions on here, maybe a search for “torque” then search those results for “dip” will show you the comments and any suggested needles above what Steve has helpfully suggested.

Geoff

#4 Re: SU needels

Posted: Mon Apr 14, 2025 7:26 pm
by caveman

#5 Re: SU needels

Posted: Wed Apr 16, 2025 8:16 am
by William Norway
a sett of UE needels are orderd and a session on roaloing road will be sett up when i get them, results will be posted here . Thanks for advice

#6 Re: SU needels

Posted: Thu Apr 17, 2025 5:21 pm
by mtnjag
William,

What is the ITG PN on that filter.
I went to their site and can't find it.

Thank you

#7 Re: SU needels

Posted: Thu Apr 17, 2025 7:43 pm
by caveman
Layne,
Rob Beere has similar available on his site:
http://www.rob-beere-racing.co.uk/induction.html#filter

#8 Re: SU needels

Posted: Fri Apr 18, 2025 3:48 am
by mtnjag
Nice one, thanks