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Home > Help Needed / General Tech Chat > Lambda question??

turbodave16v
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SouthPark, Colorado

17th Aug, 2005 at 03:43:53pm

I thought it might be the 'flats' on the "HIF" adjuster screw? 4-off, 90 degrees apart?

Edited by turbodave16v on 17th Aug, 2005.

On 17th Nov, 2014 Tom Fenton said:
Sorry to say My Herpes are no better


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AlexF2003

5795 Posts
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AFRacing LTD

Newbury, Berks

17th Aug, 2005 at 05:33:44pm

arrr those nasty old SU HS carbs LOL

alex

AlexF

Turbo Tel

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Delaware, USA

17th Aug, 2005 at 06:28:13pm

Yup you got it, on the SU there was a nut underneath which adjusts the jet height, six sides so 60 degrees per flat.

So whats on the HIF? knurled nut?? how do you adjust it? I have got hold of a turbo engine but its still in UK so havn't seen it yet.

website:- http://www.terryhunt.co.uk


AlexF2003

5795 Posts
Member #: 80
AFRacing LTD

Newbury, Berks

17th Aug, 2005 at 07:39:00pm

mixture screw... moves the jet up and down via a lever (bimetalic).

Alex

AlexF

turbo hogster

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stowmaket suffolk

18th Aug, 2005 at 08:37:34am

ive alreadey got a sensor hole in my elbow from the turbo what type would i need for this application, at the moment of got a gaffed one fitted.

if i bought a new one i could then use i multi meter to read it.

always looking for them bigger bunches of bannanas

Jimster
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455bhp per ton
12 sec 1/4 mile road legal mini

Sunny Bridgend, South Wales

18th Aug, 2005 at 09:27:00am

yes you could mate

Team Racing

On 15th May, 2009 TurboDave said:
I think the welsh one has it right!


1st to provide running proof
of turbo twinkie in a car and first to
run a 1/4 in one!!

Is your data backed up?? one extra month free for all Turbo minis members, PM me for detials

stevieturbo

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Northern Ireland

21st Aug, 2005 at 02:08:25pm

All sensors are not the same. Most narrowbands are comparable though.

Until you have driven and tuned a car with a wideband, you simply cannot appreciate how good they are.

They cover such a wide range of AFR's, as different fuels have different AFR's for stioch, max power, cruise etc Petrol, LPG, diesel, Methanol etc etc

Lead kills these sensors. Most other fuels are fine.


For Turbo Tel.
I would never run a turbo car at an accurate 12.5:1 AFR, let alone guessing with a narrowband. That is so borderline on meltdown it simply isnt worth the risk. I'd always aim for high 11's with a wideband.

Using a narrowband is better than nothing, but as the output voltage can also change with EGT, and such a small voltage change represents a massive AFR change, trying to tune anywhere close to lean for max power is very dangerous.

If you do your own tuning, spending £200 or so on a wideband will be some of the best moeny you have spent. Having it installed full time in the car gives so much peace of mind at all times, and also allows you to get a full picture of whats going on, for when you want to make changes.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

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