• The Roadster Factory Recovery Fund - Friends, as you may have heard, The Roadster Factory, a respected British Car Parts business in PA, suffered a total loss in a fire on Christmas Day. Read about it, discuss or ask questions >> HERE. The Triumph Register of America is sponsoring a fund raiser to help TRF get back on their feet. If you can help, vist >> their GoFundMe page.
  • Hey there Guest!
    If you enjoy BCF and find our forum a useful resource, if you appreciate not having ads pop up all over the place and you want to ensure we can stay online - Please consider supporting with an "optional" low-cost annual subscription.
    **Upgrade Now**
    (PS: Subscribers don't see this UGLY banner)
Tips
Tips

Special Tuning using AF Equipment by Innovative Motorsports

steveg

Yoda
Gold
Country flag
Offline
My setup. Dual EGT gauge in the works:

screenshot.1581.jpg
 

dougie

Luke Skywalker
Country flag
Offline
I guess I'm old school.....chassis dyno works for me.

Portland Speed Industries Dyno.jpg
 

steveg

Yoda
Gold
Country flag
Offline
Steve, what's the difference between a voltmeter and a "Battery Condition" gauge (if any)? Thanks.

Reid, no difference - that's what Smiths called them when they came out. That's a reconditioned gauge as used in Triumphs. I liked it instead of the current one Moss sells because of the vintage look.
 
Last edited:
OP
Patrick67BJ8

Patrick67BJ8

Obi Wan
Silver
Country flag
Offline
Patrick - thank you for posting the links above. The MG thread is especially interesting. Those are some serious tuners.

What I am thinking is to use the LM-1 to setup my BJ8 to get it to run better.

I overhauled it and went 60 over on the bore and it seems sluggish. My thought I’d to use the LM-1 to get readings at idle and through the cruise and power range and if needed buy special needles for the carbs. I will only be able to get readings by making two or more runs and inserting the probe in each side of the exhaust. My BJ8 is running the same exhaust setup as original, left side for the front three cylinders and right side for the rear three cylinders. The readings would be downloadable to my PC for viewing. I don’t want to add bung holes in the downpipes if I can help it.
 

John Turney

Yoda
Silver
Country flag
Offline
The LM-1 isn't listed as a current product on Innovative Motorsports website. Typically, oxygen sensors have to operate at higher temperatures than the end of the tailpipe; that's why bungs have to be installed.
 

steveg

Yoda
Gold
Country flag
Offline
The LM-1 isn't listed as a current product on Innovative Motorsports website. Typically, oxygen sensors have to operate at higher temperatures than the end of the tailpipe; that's why bungs have to be installed.

John, pretty sure this isn't the case. The MG tuners in the thread referenced above are using LM-1 or LM-2 with a 2-foot extension which goes far enough up their single straightish pipe so as to eliminate the possibility of outside air mix. IIRC, Gunson makes such a probe-type AFR sniffer.

Added - Found this:

screenshot.1582.jpg
 

twas_brillig

Jedi Knight
Country flag
Offline
Any thoughts on a DIY version of the Gunson insertable probe (and having just had my annual physical, kindly avoid remarks about colons and prostate checks). Doug
 
OP
Patrick67BJ8

Patrick67BJ8

Obi Wan
Silver
Country flag
Offline
John, pretty sure this isn't the case. The MG tuners in the thread referenced above are using LM-1 or LM-2 with a 2-foot extension which goes far enough up their single straightish pipe so as to eliminate the possibility of outside air mix. IIRC, Gunson makes such a probe-type AFR sniffer.

Added - Found this:

View attachment 57270
The LM-1 is discontinued and I have a Healey friend who has one and wants to sell it at a reasonable price low enough for me to think I need it.
 

HealeyPassion

Jedi Warrior
Country flag
Offline
I'm using a Innovative LC-1 on my EFI car to help with the tune. It's great having real time A/F ratio numbers when your looking at the various combinations.
 
OP
Patrick67BJ8

Patrick67BJ8

Obi Wan
Silver
Country flag
Offline
I'm using a Innovative LC-1 on my EFI car to help with the tune. It's great having real time A/F ratio numbers when your looking at the various combinations.
Is the LC-1 something that you would recommend for tuning SU’s?
 

HealeyPassion

Jedi Warrior
Country flag
Offline
Is the LC-1 something that you would recommend for tuning SU’s?

Patrick, I've never tried one on an SU car so can't say for sure. But, I it would certainly seem to be good info to have on any tune... real time A/F ratio info. After all, it's all about the gas/air mix and how well you are burning it (okay, ignition comes into it :tennis:smile:… but you get my drift.
 

steveg

Yoda
Gold
Country flag
Offline
Patrick, I've never tried one on an SU car so can't say for sure. But, I it would certainly seem to be good info to have on any tune... real time A/F ratio info. After all, it's all about the gas/air mix and how well you are burning it (okay, ignition comes into it :tennis:smile:… but you get my drift.

HP - your video with the AFR meter shows a flat spot at the beginning of a rev.

Am assuming the EFI computer programming can take the info from a data logger and write an AFR curve which will offset the ups and downs for a variety of driving. This is the stuff that drives the SU tuners nuts when they're modifying specific parts of needles for specific needs.
 

HealeyPassion

Jedi Warrior
Country flag
Offline
HP - your video with the AFR meter shows a flat spot at the beginning of a rev.

Am assuming the EFI computer programming can take the info from a data logger and write an AFR curve which will offset the ups and downs for a variety of driving. This is the stuff that drives the SU tuners nuts when they're modifying specific parts of needles for specific needs.

Steve, yes as I mention... the video was about 15 minutes into it. While it started up amazingly well with little adjustment to the mapping tables in the ECU, there is much to do. The engine, as seen in the video, goes super lean at throttle tip in... all that can be adjusted out with the fuel maps... harder to do with SU's but a key piece of information nonetheless.
 
Similar threads
Thread starter Title Forum Replies Date
M MGB MGB Special Tuning 4 Cyl Carbs - Need Help w ID and Replacement Needles MG 1
C BMC Special Tuning Data Austin Healey 9
L Special Tuning PDF Spridgets 4
theleisure BMC SPECIAL TUNING DATA Manual Spridgets 4
Racer-X- Special Suspension tools 18G95 and 18G78 British Motor Corp 1
pbraun Alex Moulton's special Mini Moke for sale Other British Cars 0
Sherlock A special Ferrari replica Other Cars 5
9 For Sale: Thermocarb - complete setup including special manifold Austin Healey Classifieds 1
O Wanted MG K/KN to K3 special MG Classifieds 3
Michael Oritt Special tools for LBC'S Austin Healey 25
Got_All_4 General TR Is there a special tool needed for rear brake cylinders Triumph 14
M Jaguar XK Special Equipment Generator Jaguar 1
R TR6 Transmission Removal Anything Special To Know Triumph 9
P Special Sockets Restoration & Tools 6
C TR2/3/3A TR Special Triumph 7
C TR2? Special Racing 3
aeronca65t Henry Manney Special Spridgets 23
PAUL161 Boyal Special-1938 Maserati 8CTF Racing 0
aeronca65t Mustang Calif. Special Spotted 5
M 60s jaguar based special Jaguar 2
3798j Fitch-Whitmore Jaguar Special Jaguar 3
JPSmit Land Rover Defender - and Home made special Spotted 1
Jim_Gruber Spring Cleaning Special - Lower Valance for Spridget off of a '68 Sprite Spridgets 10
T TR2/3/3A Is there a special way to get fuel pump off and on a 1961 TR3A? Triumph 4
aeronca65t John Pope Special Other British Cars 4
aseriesspares Triumph - Complete Hardware Sets! SPECIAL OFFER! Triumph 0
aseriesspares Spridget - Complete Hardware Set! SPECIAL OFFER! Spridgets 0
aseriesspares MG - Complete Hardware Sets! SPECIAL OFFER! MG 6
aseriesspares AH Sprite -Complete Hardware Set! SPECIAL OFFER! Austin Healey 4
aeronca65t Vintage Homebrew Special Other Cars 3
RickB No LBC - can't find a special bolt - help? Spridgets 21
C The Story of a Very Special Jaguar Racecar Jaguar 2
C Very nice Triumph-Powered TVR 2200 Special Racing 9
BobbyD Hemmings Looking for Special E-Types to Honor Jaguar 0
rick_ingram Special MOSS deal for MG2011 registrants! MG 1
Hap Waldrop VTO Spring wheel special Triumph 4
Hap Waldrop VTO Spring Wheel Special Spridgets 9
Hap Waldrop VTO Spring wheel special MG 1
B Midget 50th - SS Badger special rate expiring! Spridgets 1
G Not another Andrew Mace Special! ! ! Triumph 14
S Healey Special Austin Healey 4
JPSmit Triumph Special Other British Cars 1
Sherlock Lancia, a rather special one... Spotted 3
Hap Waldrop VTO wheel Christmas special Spridgets 35
aeronca65t Neat Old Special Other Cars 3
DNK Special Sale about to end Triumph 5
T OT - A special Happy 4th to our Veterans here Triumph 3
UmmYeahOk VB Winter Special Deadline Triumph 2
S TR2 Gibbons? special... does anyone know anything? Racing 2
Brosky Harbor Freight Tools New Years Day Special Triumph 5

Similar threads

Top