fuel costing me £1 for every mile!!!!!

Started by ttpower, August 22, 2007, 11:07:34 AM

Previous topic - Next topic

0 Members and 0 Guests are viewing this topic.

ttpower

Its a new bridgeported engine with pip\'s base map on, but its costing me a packet in fuel, like it just drinks it literately, bit of a dog to start by the key as well, starts by towing staright away? any ideas what it could be?
Save me hunting all around the car :Thumbs-up

rx jamie

could be the lambda or cold start? as for the starting i cant help?

BlitzBoy

wow sounds very rich, get it back to Pip straight away
"Piston Killa" 3rd Gen\'94 \'Oldone Racing Full Bridge Ported REW 13b engine with SCR seals\'. HKS T51 KAI turbo BBM mapped Motec ECU

JDS/HKS Street Class Championship Runner up 2011
Rotorstock winner 08,09
http://pistonkilla.blogspot.com/
old spec HB T51 470 @ wheels @ 1.2 BAR, 555 @ fly 10.46 @ 130 @ 1.25 Bar
new spec FB T51 482 @ wheels @ 1.15 BAR, 570 @ fly

New Project
"el fénix" RX2 by Mark & Mark

ttpower

lambda showing volts fine on the pfc, could be cold start but i put 20 quid in it, drove it for 20 miles and the needle is at 0

ttpower

could it be that rich on standard injectors though?

rx jamie

im surprised it even runs. it doesnt have any leaks on the fuel lines does it ?

ttpower

nope checked that, will have another look today at them, sure the aint though, just thinkin, could there be a hole or something in my tank, actually it doesnt loose anything when its standing still! seems to rush out when i take a hard bend as well!  getting more confusing lol!

rmagictastic

what turbo you running on the bridge??  also is it a full bridge or half??

if its a full bridge, 1 pound a mile doesnt sound too much.

rmaj
Getting old... Its not like it was in my day!

rx jamie

Quote from: rmagictasticlf??if its a full bridge, 1 pound a mile doesnt sound too much.

rmaj

:eek :eek:

ttpower

spec as follows;

Big Half bridge port secondarys, extended street port primaries
3mm 2 piece RA apex seals,modified for twin Atkins springs
Atkins solid corner seals
Hurley Duplex side seals
Turbo 2 8.5CR Rotors clearanced by 10thou
Atkins E Shaft oil jet mods
New rotor housings with ported exhaust
RX8 needle bearings
Viton oil rings
Teflon water seals
Wax pellet removed
Ported lower inlet manifold

At the mo just running it in with non sequential setup, although one of my turbo oil seals broke so blocked oil line off to that one! all the luck im having lol!

ttpower

Quote from: rx jamieim surprised it even runs. it doesnt have any leaks on the fuel lines does it ?


runs perfect, bit lumpy but i cant go above 3k to wear the engine in and it idles at 1700-2k rmp.

rmagictastic

Quote from: ttpowerspec as follows;

Big Half bridge port secondarys, extended street port primaries
3mm 2 piece RA apex seals,modified for twin Atkins springs
Atkins solid corner seals
Hurley Duplex side seals
Turbo 2 8.5CR Rotors clearanced by 10thou
Atkins E Shaft oil jet mods
New rotor housings with ported exhaust
RX8 needle bearings
Viton oil rings
Teflon water seals
Wax pellet removed
Ported lower inlet manifold

At the mo just running it in with non sequential setup, although one of my turbo oil seals broke so blocked oil line off to that one! all the luck im having lol!


Carl ran something very similar to this last year except with full bridge...  Â£1/mile sounds right on base map, it will see that you are flowing huge amounts of air and throw fuel at it!!!

just to clarify you are running a bridge port base map yes??

and are you running completely stock fuelling, i presume you are intending to upgrade it before mapping??


rmaj
Getting old... Its not like it was in my day!

ttpower

yeah, pip put that map on for me, going to upgrade to 1600 secondaries and uprate my fuel pump & fpr. Its just to run the engine in, and whilst i source some decent parts, i got a while yet to run it in, just at this rate it seems to be running at quite an expensive cost, maybe pip decided to throw more fuel at it to be sure it didnt run lean, maybe thats the problem with it starting as well?

So what kind of mpg am i looking at when its running right? at first i thought it was the fuel dial broke or something, but noticed when i turn quite sharp the needle drops significantly, what sort of measuring do they use in these tanks?

rx jamie

i got 11 mpg when mine was running 445 bhp.

ttpower

which means you were getting about 3 miles for every £1! is that right! was yours a bridgeport!