free hit
counters
Colourtune, any good? - Engine & Ancilliaries/Gearbox - The Lotus Forums Jump to content
CharlieCroker

Colourtune, any good?

Recommended Posts

Running a bit rich, will a colourtune do the job? Carbs definitely need a tweek, you can smell the richness in the air. I've seen a few of you guys use them, are they as useful as people say. Thanks. 

  • Like 1

Share this post


Link to post
Share on other sites

Upgrade today to remove Google ads and support TLF.

Yes. Deffo one of those with the 4 manometer set up to balance the carbs at the same time works wonders.

 

Buddsy

  • Like 1

 

"Belief is the enemy of knowing" - Crrow777

Share this post


Link to post
Share on other sites

I have two and the flow meters to tune my Elan up........

  • Like 1

The Faster You Drive...The Slower You Age

(Albert Einstein  14 March 1879 - 18 April 1955)

 

Share this post


Link to post
Share on other sites
4 hours ago, CharlieCroker said:

Running a bit rich, will a colourtune do the job? Carbs definitely need a tweek, you can smell the richness in the air. I've seen a few of you guys use them, are they as useful as people say. Thanks. 

I've got a Colortune and Carbtune, and like them. And they've got to be simple if I can use them (with the car passing the emissions part of MOT recently, to prove it). You want to borrow them?

  • Like 1

Share this post


Link to post
Share on other sites

Well would love to try it, wouldn't want to put you out or anything. However I've just read that richness helps start up? That's coming from the Esprit section of the forum, in a guide to tuning the dellortos. On another note anyone know the ft/lbs torque numbers for unmodified bog standard 907? Just when I went out today felt like she could pull a train she was pulling so well! Loving this engine, makes you fell like you want to do something with it. 

Share this post


Link to post
Share on other sites

140 lb·ft torque on the 907 engine, according to Wikipedia. The engine is nice, especially once it gets past around 4,000 when it really wakes up. I've thought about doing stuff to it too, but I've been down that road before with previous cars and... well, I'd have to choose between financial stability or the car! Once I've got it running right I'm gonna get it onto my friend's dyno and see what figures it can put up.

I've read that same bit I think on the forum about richness I think, so I've just tuned mine to be a little richer than they'd otherwise be.

Just ping me a message on here if you want to borrow them - they're just sat in my garage until servicing time again.

  • Like 1

Share this post


Link to post
Share on other sites

I'm not an Esprit owner,big money. But on my cars I use a permanent fixture,a lambda and a air/fuel ratio gauge. I do have colourtune,can't fault it. But with the lambda/gauge setup,it's drive..adjust...drive...adjust,instead of spark plug out.

Share this post


Link to post
Share on other sites

I done mine on the colourtune and thats richer than I had it set with the spark plug electrode colour. I thought I was running pretty rich before. AndydClements tells me setting the idle with the colourtune only does the idle but once I got that set to the colourtune it seems to run very nice all the way through the bands.

 

Buddsy 


 

"Belief is the enemy of knowing" - Crrow777

Share this post


Link to post
Share on other sites
30 minutes ago, blow-thru said:

I'm not an Esprit owner,big money. But on my cars I use a permanent fixture,a lambda and a air/fuel ratio gauge. I do have colourtune,can't fault it. But with the lambda/gauge setup,it's drive..adjust...drive...adjust,instead of spark plug out.

If it wouldn't look out of place and I was going down that tuning route, I'd always go for the AEM UEGO wideband. Had it as a permanent fixture in my Evos and it always did me proud.

  • Like 1

Share this post


Link to post
Share on other sites

Dave in Yorkshire, you must move down to the South East - I would love to tune/balance my carbs. 

Shortly after buying my car 3 years ago I fitted all the parts from the carb refurbish kit and then set things up again as per a posting on the forum that suggested tightening the mixture and air screws down and then turning them anti-clockwise 2 to 3 turns - there has to be a better way, but the local garage wants £300 for a tune up!

I get a slight lag revving when pulling out at junctions so generally give it a bit more welly than needed. I'm sure that more air is needed. No problems starting or once over 3-4K revs, so probably running a bit too rich also?

Share this post


Link to post
Share on other sites

I've gone and ordered myself the Gunson Colortune 14mm set which may even arrive in time for me to play this weekend.

Thanks for the tip - having checked out the you-tube posting on how it works, I was convinced that even someone with my level of practicality could manage things. 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...