Guys where can I buy various sized metering rods from or atleast make mine smaller to allow more log through from cruise to wot as mine reads 15 and beyond from 1/2 throttle onwards, is there a way of making the diameter smaller with out wrecking the rod?

Quote: Originally Posted by boosted_wagon [View Post] Guys where can I buy various sized metering rods from or atleast make mine smaller to allow more log through from cruise to wot as mine reads 15 and beyond from 1/2 throttle onwards, is there a way of making the diameter smaller with out wrecking the rod? hey man you can start with a base rod and turn it down in a lathe

Ok cool so ya can't buy different size ones off the shelf that are made to suit eg 10psi, 15psi ect

Quote: Originally Posted by boosted_wagon [View Post] Ok cool so ya can't buy different size ones off the shelf that are made to suit eg 10psi, 15psi ect nah you can get different base rods then machine them to suit

Ah k sweet coz at 5psi it's dropping to 16.5 and that's not wot so I don't want to open it up incase

Quote: Originally Posted by boosted_wagon [View Post] Ah k sweet coz at 5psi it's dropping to 16.5 and that's not wot so I don't want to open it up incase 16.5? is that air fuel ratio?

Yeah soz man yeah afr on the wideband

On idol is at 11.5

Quote: Originally Posted by boosted_wagon [View Post] On idol is at 11.5 cool, what is it on x-factor? lol jokes can you get a reading in Lambda? Should be around 1.0 lambda at idle and cruise and around .85 at wot/full boost.

I'm reading it straight from an auto meter wideband gauge

Quote: Originally Posted by boosted_wagon [View Post] I'm reading it straight from an auto meter wideband gauge yeah, but is that setup for petrol or lpg?

man how do u set up a gauge? ive screwed the wideband o2 sensor into the exhaust and conected it to the gauge as per all the wiring diagrams, there isnt a setting for lpg or petrol......the metering rod is the stock one that comes from gas resaearch in the 440 t/b, like i said on idol it reads 11.5 and idols nice and smoth its just under load it leans right out....i just need to get difrent rods or start maching mine down till its around the 11 mark through the rev range

Quote: Originally Posted by boosted_wagon [View Post] man how do u set up a gauge? ive screwed the wideband o2 sensor into the exhaust and conected it to the gauge as per all the wiring diagrams, there isnt a setting for lpg or petrol......the metering rod is the stock one that comes from gas resaearch in the 440 t/b, like i said on idol it reads 11.5 and idols nice and smoth its just under load it leans right out....i just need to get difrent rods or start maching mine down till its around the 11 mark through the rev range i remember getting my car tuned to 0.83 lambda under load if it helps dude

thanks bud but how do i get the lambda reading....just getting standard afr at the moment..

Lambda Lambda (λ) is the ratio of actual AFR to stoichiometry for a given mixture. Lambda of 1.0 is at stoichiometry, rich mixtures are less than 1.0, and lean mixtures are greater than 1.0. There is a direct relationship between lambda and AFR. To calculate AFR from a given lambda, multiply the measured lambda by the stoichiometric AFR for that fuel. Alternatively, to recover lambda from an AFR, divide AFR by the stoichiometric AFR for that fuel as sited from http://en.wikipedia.org/wiki/Air%E2%...l_ratio#Lambda (http://en.wikipedia.org/wiki/Air%E2%80%93fuel_ratio#Lambda)

ok well going by the gas research site 16.3 is 1.05 lambda which is what im seeing on 1/2-3/4 throttle but on idol im seeing 11.5 which is .75 lambda....i think i need to richen up the idol setting to 15.5 which is 1.00 lambda.......only way i can fix the wot is by maching the metering rod down gradually till i see around .80 lambda on wot

Quote: Originally Posted by boosted_wagon [View Post] ok well going by the gas research site 16.3 is 1.05 lambda which is what im seeing on 1/2-3/4 throttle but on idol im seeing 11.5 which is .75 lambda....i think i need to richen up the idol setting to 15.5 which is 1.00 lambda.......only way i can fix the wot is by maching the metering rod down gradually till i see around .80 lambda on wot 11.5 is really rich stoich (well close to stoich) is 16.3 parts air to 1 part fuel if your running 11.5 then its 11.5 parts air to 1 part fuel, meaning there is more fuel you you would need to restrict the flow of gas to bring that figure up

yeah man ill just screw the mixture screw in or out to bring it back out to around 15.5

Quote: Originally Posted by boosted_wagon [View Post] yeah man ill just screw the mixture screw in or out to bring it back out to around 15.5 that or get a bigger metering rod ****s hard to tune man, there are only a few people in the country who are good at it, liquid injection is a different story

idol not a problem its under boost the problem lies i just sent ya a pm