Fueling Help

[V8NHH]

Just a quick post really
VXR8 LS3 Auto with Walkinshaw Bi-modal and K+N
Thought I'd have a quick run on dyno to see what fuelling was like.
Not want to post about power just want to get fuelling correct I need to what I should expect also what should look for best way etc... advice please
Blue line exhaust loud mode
Red Line exhaust quiet mode

Edited by V8NHH on Saturday 20th March 15:41

[ARAF]

Here's standard, for a comparison



There was a lot of talk about correct fuelling on the SRR thread, from last October.

[V8NHH]

Cheers

Looks like I'm running rich then, saw a comparison dyno of before and after on another thread and it showed fuelling up around 13 mark after tune
Tend to average around the 17mpg mark and best of 21mpg on run at motorway cruising speeds
Why are these cars run soo rich low down? standard

[SimonV8ster]

Maybe its just a safety thing ? Better too rich than too lean ?

I think Stig on here took a wild guess that it would be set up this way so fiddled with his fuelling and got more power quite easily.

[ringram]

Combination of reasons. Answer is of course to tune it. Stig sorted his by chaning just one table.

[V8NHH]

ringram said:

Combination of reasons. Answer is of course to tune it. Stig sorted his by chaning just one table.

Yep reckon so, I dropped Stig an e-mail
Will need a licience though what they cost, + anything should check out watch for improvements etc... Stig should have answers?

[stigmundfreud]

Think a vin license is about 80 notes, we can see if that RR in Trowbridge are still open and share the costs for an hours hire if you like?

The V2 vin is actually 99 dollars so whatever that is in pounds http://www.efilive.com/index.php?page=shop.product... you wont be able to buy it without my serial numbers but if tahts the route you want to take it will be quick and easy. Would be great on same dyno to see exactly the difference acheived getting the fueling on for each car. AFR in exhaust at WOT is pretty close to pre-cat AFR due to exhaust flows but will dial in a bit more commanded fuel to stay on the safer side

[stigmundfreud]

just seen its 60 quid an hour evening/weekend rate. They are based over at Westbury on a grubby little estate, proper back street heroes. I'd suggest Charlies but its too bloody far really! Can do the limiter at the same time if you want. The only issue is we need to check if the ECU is locked, not sure if walkinshaw lock their tunes. Easy to find out, pop round tomorrow and we'll see

[V8NHH]

Hi stig

Yep I'll pop round tomorrow if ok I'll give you a buzz later in day Got golf match in the morning!! hope the weather is better than today so prob back from that and free from 3pm?

[stigmundfreud]

Golf? :|

Should be ok 3ish, give me a bell when you can tomorrow so I know what I'm up to/where I'm at. You get my email? Fire over a larger version of the fueling graph as it will make life easier if we go down teh dyno (they might be open tomorrow you never know!)

[Bonnie and Clyde]

I know you said you dont want to talk about power etc but thats the same specification as ours at the moment. I cant see on the graph the BHP. Could you tell me on here or by email what RWHP you got???
TIA

[V8NHH]

Bonnie and Clyde said:

I know you said you dont want to talk about power etc but thats the same specification as ours at the moment. I cant see on the graph the BHP. Could you tell me on here or by email what RWHP you got???
TIA

Email sent

[Bonnie and Clyde]

V8NHH said:

Bonnie and Clyde said:

I know you said you dont want to talk about power etc but thats the same specification as ours at the moment. I cant see on the graph the BHP. Could you tell me on here or by email what RWHP you got???
TIA

Email sent

Thanks for that
I've sent a reply.
See you next weekend