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Fuel pump won't effect your idle, that will be your AAC valve or you have an air leak. The fact your economy is so shit makes me think you probably have a bunch of things that needs fixing.

100 premium should get the same economy as 98 premium if you aren't retuning it, should be 100% identical.

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Petrol is too prone to detonation for my liking to be used everyday. :P

Exactly this whole debate is moot... even the worst case scenario in e85 (say even E65) is 100% safer than an average 98 fill.

so much innuendo and scare tactics out there about having to buy drum E85... but those guys just need to justify their existence so they stay in business.

50 % of our tuning is E85 and 90% of the E85 tuning is on pump E85 the pidly 10% thats left is drum.

As so much of the fuel system has to be replaced/upgraded, I still advocate the enlarged fuel tank 100L plus.

If its done right you should only lose around 10-15% economy, yes its more painful to get perfect as most cars need to be driven for much longer in real time with accel ms logs and so forth. It it only becomes real tricky on cars with ITB and map based ecu's, ive found i need to run a separate tps based map due to poor resolution.

Another trick is to hold closed loop deeper in to the tps and kpa scales.

Most factory lines and harware is fine. Certain pumps like the tomie nismo etc are also fine for ridiculous rwkw. Most skyline guys are running 700-odd cc injectors anyway so unless your chasing over 350rwkw its not an issue.

Exactly this whole debate is moot... even the worst case scenario in e85 (say even E65) is 100% safer than an average 98 fill.

so much innuendo and scare tactics out there about having to buy drum E85... but those guys just need to justify their existance so they stay in business.

50 % of our tuning is E85 and 90% of the E85 tuning is on pump E85 the pidly 10% thats left is drum.

Exactly.

All our high end stuff runs ONLY pump E85 (Caltex Eflex) 600-1000hp and no issues. The price some of these companies are asking for drum E85 is just stupid

Exactly.

All our high end stuff runs ONLY pump E85 (Caltex Eflex) 600-1000hp and no issues. The price some of these companies are asking for drum E85 is just stupid

thats politely putting it.....

thats politely putting it.....

Unfortunately we over here in the West have no choice... It was amazing to see how many people have caught onto the E42 bandwagon over here, since we tuned my car at Allstar they pretty much recommend the "jew mix" to all the drifters haha

Pump e85 is $1.22L at the moment. The bastards.

Drum powerplus e85 was $510 for 205litres. $2.48L

I havent tested the e85 from the pump in a while to see what its at

According to my sensor and display the highest I have seen from united it E 89 or E 90. Can't remember now!

If its done right you should only lose around 10-15% economy, yes its more painful to get perfect as most cars need to be driven for much longer in real time with accel ms logs and so forth. It it only becomes real tricky on cars with ITB and map based ecu's, ive found i need to run a separate tps based map due to poor resolution.

Another trick is to hold closed loop deeper in to the tps and kpa scales.

Most factory lines and harware is fine. Certain pumps like the tomie nismo etc are also fine for ridiculous rwkw. Most skyline guys are running 700-odd cc injectors anyway so unless your chasing over 350rwkw its not an issue.

I thought so... my tuner is recommending i get new fuel lines... adding another $700 to my quote :S

don't bother.

My old car, 98 GTT nothing changed but inj/fuel pump. I ran it on non-caltex E85 for ~2 years (high E%, high 80's, low 90's) no issues. New owner has had it on E-flex since, so that's a 98 car on a high ethanol blend for nearly 3 years now. Car is still going strong. The only 'tuners' or 'workshops' who told me it was all going to end in tears were those that funnily enough, hadn't been playing with E85 at all... just got caught up in the myths and scare tactics.

Just make sure you've got enough fuel delivery, pump/injectors and you'll be fine :)

^^

what Daniel said. If you want to, run an extra line for a return line and use the standard feed and return as feeds. That depends on your power level..

yeh i had a chat with the tuner today and he cleared it up

in getting twin intanks and the rail im getting will will be receiving fuel from both ends to maintain constant pressure across all cylinders... thats why I need the extra lines

makes sense I guess... dont want pressure in cylinder 6 to go and ruin everything

yeh i had a chat with the tuner today and he cleared it up

in getting twin intanks and the rail im getting will will be receiving fuel from both ends to maintain constant pressure across all cylinders... thats why I need the extra lines

makes sense I guess... dont want pressure in cylinder 6 to go and ruin everything

I modified mine in much the same way, although the VQ has two rails obviously. I had a few issues...

As the fuel will be flowing through the one reg, if you have a pump failure, the other pump will try to take over and you wont know until you lean out on the next squirt. I would recommend running 2 non return valves if possible before the reg, just so one pump runs 3 injectors only. That way if one pump fails you will know about it.

I also had issues with the ethanol rated Proflow teflon fittings, the barbs on the olive were too short causing them to weep at pressure. So much for 2000psi. lol. The Ebay lines I changed to have been perfect as have the twin Walbro's intank.

Good luck with it. :thumbsup:

I modified mine in much the same way, although the VQ has two rails obviously. I had a few issues...

As the fuel will be flowing through the one reg, if you have a pump failure, the other pump will try to take over and you wont know until you lean out on the next squirt. I would recommend running 2 non return valves if possible before the reg, just so one pump runs 3 injectors only. That way if one pump fails you will know about it.

I also had issues with the ethanol rated Proflow teflon fittings, the barbs on the olive were too short causing them to weep at pressure. So much for 2000psi. lol. The Ebay lines I changed to have been perfect as have the twin Walbro's intank.

Good luck with it. :thumbsup:

All of his e85 skylines run the same setup and they all seem to work so ill stick with his setup

Stay tuned for -9s with 27psi on e85 early in the new year :)

All of his e85 skylines run the same setup and they all seem to work so ill stick with his setup

Stay tuned for -9s with 27psi on e85 early in the new year :)

SO, it cannot be run on standard injectors with walbro pump? atm I run 98 bp ultimate, tried UNITED 100, just deciding which is best

SO, it cannot be run on standard injectors with walbro pump? atm I run 98 bp ultimate, tried UNITED 100, just deciding which is best

Of course it can, it just depends on your power level, which if it is anything over stock I doubt the stock injectors would flow enough.

Edited by Rolls

don't bother.

My old car, 98 GTT nothing changed but inj/fuel pump. I ran it on non-caltex E85 for ~2 years (high E%, high 80's, low 90's) no issues. New owner has had it on E-flex since, so that's a 98 car on a high ethanol blend for nearly 3 years now. Car is still going strong. The only 'tuners' or 'workshops' who told me it was all going to end in tears were those that funnily enough, hadn't been playing with E85 at all... just got caught up in the myths and scare tactics.

Just make sure you've got enough fuel delivery, pump/injectors and you'll be fine :)

+1 to make sure you have enough fuel delivery and then just enjoy :)

Trent went to the effort of providing both E85 and 98 maps so I can switch back. I think its been over 6 months and I havent switched back to 98 once. Even when I go on longer trips I just throw in the boot some jerry cans full of Caltex Eflex. Cant go back now!

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