Author Topic: wideband fittings, readings  (Read 7982 times)

bernard

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wideband fittings, readings
« on: 08:19, Thu 28 August 2008 »
Ive just brought a innovate lc-1 windband kit, was just wondering if there will be anything else I will need prior to fitting it eg fuse holders, connections etc..  
Also what readings should I be aiming for, on idle, on boost etc

My car is currently running 14psi boost with a 135 main jet which I discovered when servicing my carb last weekend Im thinking this jet is to big.

Ash-Lee

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« Reply #1 on: 08:46, Thu 28 August 2008 »
I've not long got one aswell.

I think the instructions recommend you fit a fuse on the +ve somewhere, there should be a wiring diagram. The CD with the software on has more detail.

Maybe a selection of crimps, the kit should come with the 'bung' to weld into the exhaust.

5teve L

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« Reply #2 on: 09:27, Thu 28 August 2008 »
Yep, in line fuse is best, i run mine off the yellow ign wire, earthed to the steering colomn etc. just make sure the lambda & other wires are away from the king & spark leads or you may get interference ;)
I run mine through the drivers side.... Also make sure you get the lamda sensor in the correct place, just before the bend in the d/p @ 2 or 10'oclock position (ie slightly facing the firewall or front of the car)

135 main is way to big, but if you aren't going to mess with the 2nd stage then it may well have to be that large to fuel top end. You want 14.5-14.8 on idle & test in 3rd or 4th gear right up to the highest point you will rev it to (ie i rev to 7-7500rpms) looking for 12-12.4 on WOT.
Ebay do mini drill sets, try to get one that goes up in smaller increments, mine goes 1,1.1,1.15, 1.2, 1.25 etc....
For 14 psi boost i reckon a 125 main with a 1mm or .9 a/c will do, without mods to the 2nd stage.

HTH
Steve

5teve L

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« Reply #3 on: 09:32, Thu 28 August 2008 »
Also just had a thought, i wonder if you have a grp A carb body... the jetting sounds about right for it... check the size of the venturi, it has 25 mm stamped on it.

bernard

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« Reply #4 on: 10:19, Thu 28 August 2008 »
thanks for that really helpful, yeah the venturi has 25 mm stamped on it.  I shall see what readings I get with the way its setup now and go from there.

gttboy: what does WOT mean?

James5

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« Reply #5 on: 11:56, Thu 28 August 2008 »
Quote from: "bernard"
thanks for that really helpful, yeah the venturi has 25 mm stamped on it.  I shall see what readings I get with the way its setup now and go from there.

gttboy: what does WOT mean?



WOT standards for Wide Open Throttle.

25mm is a standard venturi size a larger venturi may not necesarily have it stamped on it but be a bored out 25 mm jobbie (Cheap skates that the tuners are) so the hole size has been increased if the standard venturi has been enlarged the start of the hole will more than likely be just touching the 25mm stamp of cutting some of it off.

This is what I mean (27mm venturi but a standard venturi has been bored out)


This is a standard Venturi carb (Untouched venturi)


See what your current readings are and then post the results as what Steve (GTTboys) says. Your main may be to big but it all depends on venturi size

bernard

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« Reply #6 on: 20:02, Thu 28 August 2008 »
I shall have to check again from what I can remember the 25mm seemed clear.

I cant seem to find a drill set with a 1.25 drill bit gttboy can you remember what set you brought.

5teve L

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« Reply #7 on: 22:23, Thu 28 August 2008 »
You could try your local fixings place, one near me stocks single bits, it's where i sourced my 2.1,2.2 & 2.3 bits from.... I got mine off evilbay, it was in a yellow packet & starts with a 1.05 & goes up to 2mm.

James5

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« Reply #8 on: 22:29, Thu 28 August 2008 »

5teve L

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« Reply #9 on: 22:44, Thu 28 August 2008 »
Bottom one ;)

bernard

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« Reply #10 on: 22:49, Thu 28 August 2008 »
dam How did you find that Ive just spent 6 quid on one drill bit  :lol: cheers chaps

James5

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« Reply #11 on: 23:03, Thu 28 August 2008 »
Quote from: "bernard"
dam How did you find that Ive just spent 6 quid on one drill bit  :lol: cheers chaps


I've got both those set as recomended by Steve aka GTTboy in the past :)

dgdogz

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« Reply #12 on: 14:42, Fri 29 August 2008 »
are these very hard to fit????

5teve L

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« Reply #13 on: 15:38, Fri 29 August 2008 »
Nah, not really mate, the sensor boss is the pain as you have to get it welded into the downpipe.

James5

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« Reply #14 on: 15:52, Fri 29 August 2008 »