high fuel consumption B20Vtec. why.. sending me broke.

[Joeey]

I got a question i guess, and im wondering if its normal.
I have a B20 vtec mildly built i guess,
Skunk2 pro1 cams, upgraded valve train, 11.5 comp, usual bolt ons..

Its been tuned by adrian with a s300, the thing just god damn consumes fuel for a honda i would say, 11-12/100km.. this is shifting before 3k every single gear about 25% throttle, i do not have a lead foot by all means. it is mostly half and half city/highway.

Anyone have a reason why i am using so much fuel? i am also using 100 octane, tried switching to 98 but it uses more! :l

or is this normal for a nugget like mine?

[IEVAQ8]

Go and ask.adrian to go.over the tune...
Maybe he ran it a lil too rich for safety...

[mugen_ctr]

agreed take it back to the tuner, ur fuel consumption shouldnt change to radical when running at partial throttle, if anything it should b pretty much on par with how it was stock or slightly less

Unless ur car is pinging like crazy on partial throttle thats the only real reason i can see the need to run richer afr with adjusting timing on partial throttle

id say look an compare ur AFR graph to others with similar mods to see if its normal just to be sure

[Joeey]

hmm... yeh i might take it to someone else for a retune.. he wanted to charge me full price to fix the problem which i think is a tad high.. :l

The engine also cuts out sometimes when going from partial throttle to WOT or when shifting in high rpm's once in a while.. never got a AFR graph, only power and torque.. :l

Heard decent things about toys garage, might go see for myself :)

[EKVTIR-T]

which adrian?

[Joeey]

old toda adrian..

[mugen_ctr]

No tuner should never charge for a re-tune full price full stop! if he does his a rip off an go to another tuner.

Retune could just be a simple touch up, might not even be a hour job lol, they should only charge u on a hourly basis after the main tune as they already have ur map an can tweak it, ofcourse unless u specify to them u want a completely new tune with new engine/mods

imo go find someone else..

word of advice, if u do choose a new tuner, and if they choose to re-tweak ur existing map or upload a existing map walk away ASAP!!!! no tuner should ever touch someone elses tune or map, a real tuner starts off with a fresh base map an work from there, an that way they know exactly what they did on the map, so should there ever be a problem it doesnt go back to the tuner, than back to the previous tuner etc etc

[mocchi]

but toda is the best isnt it?

[Joeey]

No tuner should never charge for a re-tune full price full stop! if he does his a rip off an go to another tuner.

word of advice, if u do choose a new tuner, and if they choose to re-tweak ur existing map or upload a existing map walk away ASAP!!!! no tuner should ever touch someone elses tune or map, a real tuner starts off with a fresh base map an work from there, an that way they know exactly what they did on the map, so should there ever be a problem it doesnt go back to the tuner, than back to the previous tuner etc etc

thanks for the advice man, yeh i was going to change tuners, but in this world of tuning hondas in sydney, im pretty sure everyone just loads up a existing map and tweaks.. :l thats what it was turned into from what i have been told..

And i was told toda was the best, who knows LOL

[mugen_ctr]

thanks for the advice man, yeh i was going to change tuners, but in this world of tuning hondas in sydney, im pretty sure everyone just loads up a existing map and tweaks.. :l thats what it was turned into from what i have been told..

And i was told toda was the best, who knows LOL

ahaha fair enuff man... If u really wanted to, id say go interstate, alot of ppl do that, simply cause of the tuners reputation and experience.

if u were in vic id strongly recommend Chequred tuning hands down!!!! He starts off with a new base map an will sit down with u and go over the tune, an u can watch ur car being tuned not like most others, where u just drop it off an walk away

[stndrd]

This may sound a little stupid, but when was the last time your fuel filter & plugs were changed? Running on 100RON (5% ethanol) can cause your fuel filter to become blocked quicker than standard 98RON (no ethanol) and can cause the plugs to fowl

[Joeey]

Hmm,
to be quite honest, ever since i have got the car ive never changed the fuel filter, got the car about a year ago. but the plugs are about 5-8k old when i put the B20 in.

I'll change the fuel filter now, any specific ones i should get? or just head down to supercheap and get the generic?

Thanks mate.

[stndrd]

Just go to Repco and buy their Repco branded or a Ryco filter

[Chr1s]

Joey, do you know how to create a datalog, this is done by connecting to the S300 and recording as you drive around? We can tell straight away if it's the tune that's causing your car to run like shit (probably is) but it may be something else causing the bad fuel economy, such as a bad temp sensor etc.

I disagree on a tuner having to completely "retune" the map for a customer that simply wants a touch up. If both tuners have half a brain, they will ramp the car in the load conditions to see how bad it is, if it's fine at high load, rpm, why change it? You're just wasting your own time and customers money. Most tuners will tune high/medium high load and leave the rest, I've spent over 2 days tuning my partial throttle map on the street to be spot on and the car drives like a champ now, I seriously don't expect this from an average "tune" that I would pay someone.. I expect it to be in the ballpark though.

Typical dyno tuning is not something you can do in 2-3 hours, OEM guys take months and months, spend millions tuning it, cold start, hot start, tip in, throttle enrichments, compensations, emissions testing, heat generation, etc. It is impossible for someone to do this on the dyno in a few hours (especially the "his a shit tuner he didn't tune my cold start but he never had the chance to start it in the cold" LOL) - BUT... you can tune it to be decent on the dyno for partial throttle and should be good enough..

[IEVAQ8]

^^^^
Finally...
Some1 who actually has some sense and knows wat they talking about on here ...
I would have posted the same, but didnt wanna waste my time with keyboard tuners...

[Joeey]

Joey, do you know how to create a datalog, this is done by connecting to the S300 and recording as you drive around? We can tell straight away if it's the tune that's causing your car to run like shit (probably is) but it may be something else causing the bad fuel economy, such as a bad temp sensor etc.

I disagree on a tuner having to completely "retune" the map for a customer that simply wants a touch up. If both tuners have half a brain, they will ramp the car in the load conditions to see how bad it is, if it's fine at high load, rpm, why change it? You're just wasting your own time and customers money. Most tuners will tune high/medium high load and leave the rest, I've spent over 2 days tuning my partial throttle map on the street to be spot on and the car drives like a champ now, I seriously don't expect this from an average "tune" that I would pay someone.. I expect it to be in the ballpark though.

Typical dyno tuning is not something you can do in 2-3 hours, OEM guys take months and months, spend millions tuning it, cold start, hot start, tip in, throttle enrichments, compensations, emissions testing, heat generation, etc. It is impossible for someone to do this on the dyno in a few hours (especially the "his a shit tuner he didn't tune my cold start but he never had the chance to start it in the cold" LOL) - BUT... you can tune it to be decent on the dyno for partial throttle and should be good enough..

Thankyou for your input chris,
Yes, i can get you a datalog.. of just driving around with a few WOT runs?
Regarding the sensors, one thing i do know is that the temperature sensor is bypassed so the fan is always on..

[mocchi]

Thankyou for your input chris,
Yes, i can get you a datalog.. of just driving around with a few WOT runs?
Regarding the sensors, one thing i do know is that the temperature sensor is bypassed so the fan is always on..

in4datalog

[ALLMTR996]

Did this issue get resolved ?

[Chr1s]

I think Adrian retuned it for him - I'm assuming it's all good in the hood now~

[cbauto]

but toda is the best isnt it?
no, jdm is best

[ALLMTR996]

I think Adrian retuned it for him - I'm assuming it's all good in the hood now~

They ask for advice in these threads go away and never finish the threads to let others know what the outcome was I just don't understand that.

[Adrian @ SAS]

They ask for advice in these threads go away and never finish the threads to let others know what the outcome was I just don't understand that.

Still not sorted...
Was booked in for a re-tune / touch-up but he's still collecting parts & changing things...
That was about 6 months ago.
I call him from time to time & he still plans to have it done but is busy with work.

[ALLMTR996]

Still not sorted...
Was booked in for a re-tune / touch-up but he's still collecting parts & changing things...
That was about 6 months ago.
I call him from time to time & he still plans to have it done but is busy with work.

Good to see us old blokes still around Buddy

[cbauto]

Times two
Good to see us old blokes still around Buddy