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FATWALLET
13-12-2000, 13:28
IF ANYONE WANTS FUEL AT SILLY OCTANE LEVELS CALL ME I SELL PROPER 4STAR NOT LRP CRAP BUT LEADED 4STAR ALLEGDELLY AT 98-102 RON OCTANE ALTHOUGH NOT COMPATIBLE WITH CATS. AT WWW.JUNCTIONGARAGE.CO.UK .A SLIGHT PROBLEM ITS A TAD EXPENSIVE AT 99.9p A LITRE

Adrian
13-12-2000, 16:35
So that's how you can afford the Skyline. How much of the stuff does it use to the mile?
Adrian
(Amazed at how fast you went past my E6 the other Sunday)

Hornet
13-12-2000, 17:58
Its not just a case of the CAT but of the lead plating the oxygen sensor causing it to give false readings and to eventually fail.

fatwallet
14-12-2000, 07:08
adrian, if i really try were down to about 10 mpg but you get much longer flames with leaded 4star

Adrian
14-12-2000, 09:50
Christ I thought the EVO was bad with a worst of about 18MPG. Supose it helps if you own a garage though.
Out of interest has anyone tried using av-gas (blue gas) in an evo. I think you can buy it from smaller airports and I know Racing Superbikes used to use it before they were made to use pump unleaded. If I remember corectly its about 110 RON and should help with det. probs at higher boost presures. just curious to see if anyone has tried it and how much it costs. Could be awkward driving to Blackpool airport to fill up though (Off to buy lots of 5Gal Jerry cans[img]http://www.ltregister.force9.co.uk/graphics/Happy.gif border|EQU| 0 align|EQU| middle >)
Adrian

ptb.
14-12-2000, 20:40
You guys arenít trying hard enough. I have gotten as little as 8 MPG in my E5 GSR.

Wreckleford
14-12-2000, 23:46
Yeah, 8 mpg is about what I get if I run it hard.

PTB, tell me about the GEMS..

ptb.
15-12-2000, 03:01
My GEMS ECU is awesome. I am still learning just how powerful it is.

I made the decision to go with GEMS as they do an implant. I have kept my car factory appearing as much as possible and though there are many companies that do an ECU GEMS is the only one that I am aware of that let you keep your original ECU case and require no modification of the harness. Some options require extra wiring. ALS, launch control and automatic intercooler spray fall into this category.

Functionally the ECU is very powerful and not too difficult to use and learn. If you enjoy fiddling with your car this is the good stuff. If you donít, then pay someone to do the fiddling, itís still the good stuff. There are many parameters, options, tables and maps that give you an incredible amount of control over just what your engine does, how it does it and when. GEMS can supply your ECU with a descent map that will get you up and running quickly. I am fairly technically minded and am enjoying the process of learning the software and engine. I wonít attempt to list even some of the features of the ECU, give GEMS a call. I will say that I am not disappointed with my purchase and that the product delivers all that it promised to.

The first day I installed my ECU I kept my boost stock but still was able to produce surprising results just with more fueling and ignition advance. With no dynamometer available locally I canít site power figures but the gain was dramatic and distinctly noticeable. Using a G-Tech I posted a best time of 13.5 on an inactive airfield. I am now running at 20 PSI and the car feels quite quick, no idea of the time yet.

I anticipate a flurry of comments about how I am doing this all wrong. To those who feel the need I will offer my thanks for your concern in advance and promise to let you all know when I blow the thing up and how hard I had to try. I will add that I was seeing more noise from my knock sensor with the stock ECU than what I have allowed while tuning with my GEMS and have lowered the rev limit.

Wreckleford,

What are you using to squander planet earths diminishing resource of dinosaur juice and what have you done to help?

Wreckleford
16-12-2000, 02:01
I've got an Evo I. Like you I try very hard to keep the car stock looking. If anyone asks I will make it clear that the car is not stock but it shocks a lot of people that a plain Jane Evo 1 can run a 13.0 sec quarter mile.

I got interested in the GEMS for the same reason - minimal wiring changes, stock ECU case etc. The child in me wants the anti-lag for hte popos, bangs and flames. I've gotten a lot of info. from the manufacturer and the distributor in Trinidad (I'm in Jamaica). I have been studying the manual and by the time I have put aside enough money to buy the darned thing, I will hopefully understand all of the tuning parameters.

I am still have some doubts though. My goal is to run low 12sec 1/4 miles in street driven form (unfortunately I am limited to using 90 Octane fuel). I am not even sure I will be able to achieve this with a programmable ECU. If I am forced to use race gas, I am sure I will be able to achieve this with only a simple fuel controller like the super AFC, so the GEMS would be a waste of money.

Anyway, glad to hear your positive impression of the GEMS ECU. Wreckleford.

chunky
16-12-2000, 10:04
90 RON? Best of luck!

And here we are moaning about 97 RON SUL!

Wreckleford
17-12-2000, 00:46
No it's not 90 RON. It's measured using the (RON |PLS| WHATEVER)/2 system. If I remember rightly it works out to 95 RON. So I guess I will be attempting to do my own Power Engineering special http://www.ltregister.f9.co.uk/graphics/Happy.gif <!--e1-->

mouton
18-12-2000, 15:39
avgas is 100 octane,but thats not the full story
what is important is the content % of oxygen
elf do race fuel,but from £2 a litre upwards
aeroplanes fly ,cars do not !

Martin Stirling
18-12-2000, 16:25
Speak for yourself mate, my mine does..

[img]http://www.ltregister.force9.co.uk/graphics/Wilk.gif border|EQU| 0 align|EQU| middle >

MS.

AndyS
20-12-2000, 17:31
ptb and amp;gt;You guys arenít trying hard enough. I have gotten as little as 8 MPG in my E5 GSR.

Girl's Blouse [img]http://www.ltregister.force9.co.uk/graphics/Happy.gif border|EQU| 0 align|EQU| middle >
My (stock) E6 has returned a whiff below 6 MPG on occasion (admittedly, Darin-organised trackday occasions [img]http://www.ltregister.force9.co.uk/graphics/Happy.gif border|EQU| 0 align|EQU| middle >)

mouton
21-12-2000, 20:44
martin sterling,
are you age 12 ?

Vas k.
22-12-2000, 07:51
hmm..sorry as i am a newbie of vehicles, the Evo I am driving now is my older brothers, he was sent to Germany for some company work, so i am now driving his car http://www.ltregister.f9.co.uk/graphics/Happy.gif <!--e1-->
anyway, can anyone please tell me what is SUL and RON? i am confused, wasnt it only measure by Octane? like 90/92/95???

thanks

Vas k.
22-12-2000, 07:53
hmm..sorry as i am a newbie of vehicles, the Evo I am driving now is my older brothers, he was sent to Germany for some company work, so i am now driving his car http://www.ltregister.f9.co.uk/graphics/Happy.gif <!--e1-->
anyway, can anyone please tell me what is SUL and RON? i am confused, wasnt it only measure by Octane? like 90/92/95???

thanks

Vas k.
22-12-2000, 07:53
hmm..sorry as i am a newbie of vehicles, the Evo I am driving now is my older brothers, he was sent to Germany for some company work, so i am now driving his car http://www.ltregister.f9.co.uk/graphics/Happy.gif <!--e1-->
anyway, can anyone please tell me what is SUL and RON? i am confused, wasnt it only measure by Octane? like 90/92/95???

thanks

chunky
22-12-2000, 23:45
I assume you are not in the UK http://www.ltregister.f9.co.uk/graphics/Happy.gif <!--e1-->

RON is Research Octane Number, a method for measuring the resistance a fuel has to detonation. For more information <!--http--><a href|EQU| http://www.seansa4page.com/resource/octane.html target|EQU| _blank >go here.</a><!--url-->

SUL is Super UnLeaded, the UK name for 97 RON unleaded petrol sold at a limited number of petrol stations. 'Normal' unleaded in the UK (sometimes called Premium Unleaded) is 95 RON.

Generally the higher the RON or octane content of a fuel, the more power http://www.ltregister.f9.co.uk/graphics/Happy.gif <!--e1-->

Japanese consumers have access to 100 RON unleaded fuel and that is what all Evos are designed to run on, hence the call for octane boosters and ecu remaps here in the UK.

Hornet
22-12-2000, 23:57
Japan also has Super Super Unleaded at 105 RON http://www.ltregister.f9.co.uk/graphics/Happy.gif <!--e1-->