Welcome Guest [Log In] [Register]
Welcome to the Dorset Japanese Old Crew. We hope you enjoy your visit.


You're currently viewing our forum as a guest. This means you are limited to certain areas of the board and there are some features you can't use. If you join our community, you'll be able to access member-only sections, and use many member-only features such as customizing your profile, sending personal messages, and voting in polls. Registration is simple, fast, and completely free.


Join our community!

If you had membership on the Original DJCC Forum then that account should still be active on this forum and you can log in below using your old username & password.

If you're already a member please log in to your account to access all of our features:

Username:   Password:
Add Reply
Wideband Lambda/datalogger Install; Justa quick progress update
Topic Started: Mar 8 2009, 06:44 PM (927 Views)
ScoobaJon
No Avatar
J
[ *  *  *  *  * ]
I've spent most of this with my head in the floorwell installing a wideband lambda/data logger will hopefully allow me to map my car myself. Before switching to the new ECU, i thought i do a few runs with the current map..

Heres my car floored in 2nd then 3rd

Pink line = Air/Fuel ratio
Black = RPM
Red = Throttle
Green = MAP
Blue = MAF

The pink line shows the AFR going right down to around 10 which is way to rich..

Posted Image

the unit in action..

Posted Image

Posted Image

and heres what my wiring loom looks like after the install.. :unsure:

Posted Image

next step is to set up the AVC-R then try and find the optimum timing advance..
Offline Profile Quote Post Goto Top
 
LegacyTurbo
No Avatar
y0
[ *  *  *  *  * ]
:o Oeerrrr!

Good luck jon, think i would still rather pay some1 to do it lol
[GK-customfield]Lewis[customfield-GK]
Starlet GT 1.3 forged engine, tdo4 turbo @ 1.25bar = 252bhp = SOLD :(

EDIT: Charade GTxx 993cc three cylinder turbo, 173bhp @ 1.4bar (should hit 200bhp with a larger throttle body, removing stupid high lift cams and a bit more boost)
Offline Profile Quote Post Goto Top
 
Tiny Tim
Unregistered

Glad you went for the LM-2 mate, the LM-1 was the biggest pile of crap i've ever had the joy of using.
Quote Post Goto Top
 
ScoobaJon
No Avatar
J
[ *  *  *  *  * ]
LegacyTurbo
Mar 8 2009, 05:59 PM
:o Oeerrrr!

Good luck jon, think i would still rather pay some1 to do it lol

:lol: cheers, i may still do the same tbh, depending how things go. at lest i'll be able to see if they've done a decent job if nothing else..

@Tim i didn't know you'd played with anything like this mate. yeah the LM-2 seems good so far, the data is as expected and, dare i say, the install was surprisingly easy.
Offline Profile Quote Post Goto Top
 
RA Jay
No Avatar
4 Have Gone But Never Forgotten.
[ *  *  *  *  * ]
Fairplay Jon if you intend to try and map your own car. IMO paying 300quid to have one of the best mappers in the country weave his magic is alot cheaper than a 2k rebuild. Apart from knowing the mapping software, vast knowledge of the EFI engine is needed before anyone attempts such a thing..
1995 WRX - 318bhp/300ftlb - SOLD - 2005
2001 WRX Bugeye - 235bhp/230ftlb - SOLD - 2007
1996 WRX Type RA - 282bhp/285ftlb - SOLD - 2008
1997 STI Type RA - 350bhp/320ftlb - SOLD - 2009
1991 Nissan Pulsar GTiR - 286bhp/280ftlb - SOLD - 2009

Offline Profile Quote Post Goto Top
 
Tiny Tim
Unregistered

ScoobaJon
Mar 8 2009, 06:20 PM
@Tim i didn't know you'd played with anything like this mate. yeah the LM-2 seems good so far, the data is as expected and, dare i say, the install was surprisingly easy.

There's alot you dont know about me :lol:
Quote Post Goto Top
 
ScoobaJon
No Avatar
J
[ *  *  *  *  * ]
RA Jay
Mar 8 2009, 06:35 PM
Fairplay Jon if you intend to try and map your own car. IMO paying 300quid to have one of the best mappers in the country weave his magic is alot cheaper than a 2k rebuild. Apart from knowing the mapping software, vast knowledge of the EFI engine is needed before anyone attempts such a thing..

i appreciate the heads up and if it was just about the money then i wouldn't bother for those exact reasons. EFI is a a complete head fudge but quite interesting. if i get good enough then theres always a possibility that i can quit my job and do it professionally, who knows :unsure:

@Tim and there was me thinking, after all those week of stalking, i knew everything :lol:
Offline Profile Quote Post Goto Top
 
rob73
No Avatar
hello
[ *  *  *  *  * ]
Jon what are you doing man? seriously heavy stuff here as there is a great chance that by the time youve sussed out what your doing youll have damaged your motor so it would have worked out much cheaper to get a pro to map it,and quicker. So you coiuld ave put your money and time into doing other bits on the car. These mapping guys spend years of time & money learning to do what they do. Scoobys aint like setting up an old pinto motor or simlar.
Oh well....i wish you luck anyway.
1995 wrx wagon the cleanest around!!!
Offline Profile Quote Post Goto Top
 
Andy
No Avatar
.
[ * ]
im with these guys, dont waste your time killing your car trying to penny pinch.
if your having to go buy wideband kit etc to do it you probably spent half of what it costs to pay somebody anyway, then you have to learn how to use it all and get it running right.

its really not worth the hassle or the risk, and as jay said £300 is a darn site cheaper than a rebuild.
Offline Profile Quote Post Goto Top
 
Ian
No Avatar
Part of team impreza
[ *  *  *  *  * ]
my bottom end rebuild cost 1.5k and thats with out labour charges i see where you coming from though it would be good to be able to do it your self stuck between a rock and ahard place
im not lazy im just chilled
Offline Profile Quote Post Goto Top
 
Tiny Tim
Unregistered

Well i'm with Jon to be honest. Too many people are too quick to take their cars to garages for work to be carried out these days. I've always been the sort of person who'd rather learn and do things myself.

If I can be of any assistance mate, you know where my desk is :D
Quote Post Goto Top
 
ScoobaJon
No Avatar
J
[ *  *  *  *  * ]
i appreciate the concern and know it won't be cheap if i get it wrong but its unlikely and its really not about the money. if you add up the price of all the books, ecu and datalogger, i could have got JGM to install and map a SimTek :o . If i mess it up, i'll buy a cheap NA car and map that. Its just something i want to learn. partly for the challenge and partly for potential profit. i hope that makes sense.

Cheers for the offer Tim, i'll let you know :thumbsup:
Offline Profile Quote Post Goto Top
 
TRDcelica
Member Avatar
Bringing home the bacon has never been so fun!!!
[ *  *  *  *  * ]
Fairplay Jon on trying this!!! I personally would, and am, getting the ECU remapped by a pro! However I fully understand wanting to do it for personal achievement and I say go for it!! :thumbsup:

Good luck!!
"Not putting miles on your MR2 is like not having sex with your girl friend so she'll be more desirable to her next boy friend."
- From Sypderchat

"V-tec - its like watching lost. You think its going to be great but in the end nothing really happens."
- Cisco

<a href="http://www.chrisnewnham.co.uk"><img src="http://chrisnewnham.co.uk/wp-content/themes/lcp_blu_wp3/images/djcc-avatar/1.jpg" width="383" height="104"></a><a href="http://www.facebook.com/NarlyDude"><img src="http://chrisnewnham.co.uk/wp-content/themes/lcp_blu_wp3/images/djcc-avatar/2.jpg" width="42" height="104"></a><a href="http://uk.linkedin.com/in/chrisnewnham"><img src="http://chrisnewnham.co.uk/wp-content/themes/lcp_blu_wp3/images/djcc-avatar/3.jpg" width="39" height="104"></a><a href="http://twitter.com/chrisnewnham"><img src="http://chrisnewnham.co.uk/wp-content/themes/lcp_blu_wp3/images/djcc-avatar/4.jpg" width="41" height="104"></a>
Offline Profile Quote Post Goto Top
 
RA Jay
No Avatar
4 Have Gone But Never Forgotten.
[ *  *  *  *  * ]
Mapping is all about reputation, it only takes one failure and that could be the end. The majority of mappers have been doing it for years and most run their own tuning shops as well use their own cars for competition use, whether it be on the drag strip,TOTB or the Time Attack series which enhances their reputation.

What im trying to say is it takes more than a laptop and software to make it in the mapping game.
1995 WRX - 318bhp/300ftlb - SOLD - 2005
2001 WRX Bugeye - 235bhp/230ftlb - SOLD - 2007
1996 WRX Type RA - 282bhp/285ftlb - SOLD - 2008
1997 STI Type RA - 350bhp/320ftlb - SOLD - 2009
1991 Nissan Pulsar GTiR - 286bhp/280ftlb - SOLD - 2009

Offline Profile Quote Post Goto Top
 
Tiny Tim
Unregistered

Richard Branson started Virgin in a public phone box. ;)
Quote Post Goto Top
 
Andy
No Avatar
.
[ * ]
Tiny Tim
Mar 10 2009, 06:28 PM
Richard Branson started Virgin in a public phone box. ;)

i dont think he risked blowing something up with 1 wrong move.....
Offline Profile Quote Post Goto Top
 
Tiny Tim
Unregistered

Granted, but Jon's not stupid.

I'm amazed so many negative comments putting him down purely because he wants to better his knowledge :blink:
Quote Post Goto Top
 
Andy
No Avatar
.
[ * ]
dont get me wrong i wish him luck in doing it as its something i would love to be able to do and might try myself as i have another engine spare, buts its extremly risky and i would of thought practising on an n/a car would of been better first as theres a lesser chance of something going wrong.
Offline Profile Quote Post Goto Top
 
RA Jay
No Avatar
4 Have Gone But Never Forgotten.
[ *  *  *  *  * ]
Tim im not putting Jon down just trying to put a reality spin on it. Ive met Jon a few times and he's a nice guy i just wouldnt want anything to happen to his engine. You know yourself that 1/2 a degree of ignition timing here or there could mean the difference between success and failure.

The reasons Mappers get paid so well is because they have perfected something that take's a long time to master. When JGM mapped my car i really felt reluctant to hand over the money....FFS...i paid him 300 quid a little over an hours work but i wasnt paying him for his time i was paying him for his knowledge, a knowledge that got the best from my car and a knowledge that he has spent years perfecting.

This is a guy who had previously spent 15 years in the software industry for main stream avionics companies working on projects such as the Euro fighter, Harrier, Lynx helicopters, Boeing 777 which included flight controls, fuel computers, missile release systems and aircraft engine management....thats what i paid him the 300 quid for.

If Jon is going to try it then i wish him the best of luck i really do.
1995 WRX - 318bhp/300ftlb - SOLD - 2005
2001 WRX Bugeye - 235bhp/230ftlb - SOLD - 2007
1996 WRX Type RA - 282bhp/285ftlb - SOLD - 2008
1997 STI Type RA - 350bhp/320ftlb - SOLD - 2009
1991 Nissan Pulsar GTiR - 286bhp/280ftlb - SOLD - 2009

Offline Profile Quote Post Goto Top
 
bigjohnyboy22
No Avatar
bigjohnyboy22
[ *  *  *  * ]
go for it i wish you all the best thats the way i have been all my life you aint going learn if you dont try it and dont be down if you dont get it right first time good luck :thumbsup:
[GK-customfield]john elliott[customfield-GK]Posted Image

Elliott Performance now in the 12 second club
Offline Profile Quote Post Goto Top
 
ScoobaJon
No Avatar
J
[ *  *  *  *  * ]
Thanks for all the comments :thumbsup: This really isn’t something I’m taking lightly. I have spent countless days reading books and articles about EMS and trying to get my head around all the maths and physics involved. I’m not going to touch anything until I’m confident I know exactly what I’m doing. If my engine does fail then I’ll see if I can get my hands on a closed deck block and rebuild it with stronger internals so it won’t be a complete loss.

A low compression NA engine would be a much more sensible place to start but the car and ECU won’t be cheap and I’ve got to tackle boost at some point so I’m just going to go for it.

Luckily a lot of the hard work has been done for me. I know the capabilities of my engine, the efficiency range of the turbo and I can see exactly what AFR and Boost maps the pros use from dyno charts. The tricky part is optimising the timing. This involves hitting the det limit then retarding the timing back to just before it happens. It’s risky but I hopefully, approached with enough care, it should be doable.

I have one more book to read and a few maintenance jobs to do. After that I’ll have a crack at it and let you know what happens :)
Offline Profile Quote Post Goto Top
 
rob73
No Avatar
hello
[ *  *  *  *  * ]
????........well,that was 5 days ago,so im asuming things aint going to well with your books & lap-top.
1995 wrx wagon the cleanest around!!!
Offline Profile Quote Post Goto Top
 
LegacyTurbo
No Avatar
y0
[ *  *  *  *  * ]
Jon, what have you got with regards to det detection? Det headphones?
[GK-customfield]Lewis[customfield-GK]
Starlet GT 1.3 forged engine, tdo4 turbo @ 1.25bar = 252bhp = SOLD :(

EDIT: Charade GTxx 993cc three cylinder turbo, 173bhp @ 1.4bar (should hit 200bhp with a larger throttle body, removing stupid high lift cams and a bit more boost)
Offline Profile Quote Post Goto Top
 
ScoobaJon
No Avatar
J
[ *  *  *  *  * ]
no its still going as planned rob. unfortunately i only get to work on it at weekends so its a slow process. yesterday i changed the coolant and fitted the AVC-R. today i installed some cooler grade plugs and fixed the suspension. i just need to setup the AVC-R with the stock ECU then i can switch over and start the mapping. i am trying to do everything i can to give me the greatest chance of success though so it will take awhile. i will update this when i have made some progress.

@lewis yes det cans mate. the ECU will also flash the service light if it detects det but thats not 100% reliable.
Offline Profile Quote Post Goto Top
 
RA Jay
No Avatar
4 Have Gone But Never Forgotten.
[ *  *  *  *  * ]
What ecu are you using?
1995 WRX - 318bhp/300ftlb - SOLD - 2005
2001 WRX Bugeye - 235bhp/230ftlb - SOLD - 2007
1996 WRX Type RA - 282bhp/285ftlb - SOLD - 2008
1997 STI Type RA - 350bhp/320ftlb - SOLD - 2009
1991 Nissan Pulsar GTiR - 286bhp/280ftlb - SOLD - 2009

Offline Profile Quote Post Goto Top
 
1 user reading this topic (1 Guest and 0 Anonymous)
ZetaBoards - Free Forum Hosting
Enjoy forums? Start your own community for free.
Go to Next Page
« Previous Topic · Subaru: Projects & Modifications · Next Topic »
Add Reply

Free Domain Name Registration