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Electronic Fuel Injection


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#1 JohnRoberts

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Posted 14 June 2018 - 11:39 AM

Hi Guys

 

Does anybody have any experience of the kits supplied by this co. called Classic Car Injection.co.uk

 

I am considering converting my 1972 CP/PI

 

Best Regards  JohnR


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#2 Hawk

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Posted 14 June 2018 - 11:55 AM

None .... but watching this thread with interest.


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Keep it real  :D Peter


#3 TriumphV8

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    Triumph TR6 blue 5.0 EFI with Rover engine and Megasquirt

Posted 14 June 2018 - 01:01 PM

Very competitive pricing compared to others.

Honestly said I ended in the range from 1000 to 1500 Euros

making my own system including soldering the MegaSquirt together.

 

But keep in mind that only a really good set of manifolds with the

spindles fully free of play and a proper setting can bring all the

benefits of modern EFI fully to work!

 

Also I would expect that some smaller parts like EARLs connectors

and weatherproof electrical connectors might boost the price a little bit.

 

Keep us informed about the progress.


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Cheers

Andreas


#4 john.r.davies

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Posted 14 June 2018 - 01:21 PM

Nearest to a TR6 on their site is a converted Vitesse.

https://www.classicf...mphvitesse4.jpg

Ask for contact details of the owner?

 

JOhn


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#5 Tr4Deano

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Posted 14 June 2018 - 01:50 PM

Expensive but if going EFI would go for the Jenvy fuel injected Webber copies
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#6 JohnRoberts

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Posted 14 June 2018 - 02:15 PM

Hi Guys

 

Thanks for the replies so far. I was thinking of using my existing throttle bodies, refurbished.

 

Regards JohnR


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#7 Tom Fremont

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Posted 14 June 2018 - 04:05 PM

Good luck with the conversion, John. Wonder what you're hoping/expecting to gain...if it's reliability you'll do very well to match Webers.

 

Cheers,

Tom


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#8 marki

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Posted 14 June 2018 - 05:31 PM

Hi John.
I went with a company called Emerald, very helpful in all aspects of the conversion.
The difference is remarkable.
Good luck, you won't regret it, Mark.Attached File  IMG_1275.JPG   159.13KB   8 downloads
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non boring cars previously owned

1965 mk1 cortina GT

1965 m1 lotus cortina

1973 stage 2 prep escort mexico

1980 lotus sunbeam

1968 modified moggie convertable

why did i sell them ?

#9 JohnRoberts

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Posted 14 June 2018 - 05:42 PM

Hi Marki

 

That looks a superb conversion. I like the Metalwork push in pneumatic fittings, used to sell them in my dim and distant working days.

 

Regards JohnR


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#10 stuart

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Posted 15 June 2018 - 11:23 AM

Hi Marki

 

That looks a superb conversion. I like the Metalwork push in pneumatic fittings, used to sell them in my dim and distant working days.

 

Regards JohnR

Whats the purpose of them on that installation?

Stuart.


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TR4A Royal blue TR5 White  Volvo V70 D5 twin turbo
Plus whatever TR is in workshop for restoration.
 


#11 michaeldavis39

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Posted 15 June 2018 - 12:02 PM

Marki could you explain the remarkable difference please in a bit more detail as am on the cusp of deciding which way to go with my own engine restoration- had Zenith's on and have acquired and refurbed all necessary components to make it PI just got all plumbing to sort out.

Edited by michaeldavis39, 15 June 2018 - 12:02 PM.

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#12 TRTOM2498PI

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Posted 15 June 2018 - 01:00 PM

Hi Michael,

 

I have the same installation as Marki.  Prior to this, I had a rebuilt Lucas PI system, on a modified engine.  The most noticeable difference is fuel economy, which will see approx an extra 100 miles to a full tank.  Smoother through the rev range, and longevity of engine oil, as it now longer receives the petrol mix down the bores.

 

Throttle response is instantaneous, too.

 

Cheers.


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#13 michaeldavis39

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Posted 15 June 2018 - 01:46 PM

How do you mean it no longer receives the petrol mix down the bores- have you got the Jenvey throttle bodies or kept original Lucas ones?
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#14 TriumphV8

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Posted 15 June 2018 - 04:20 PM

Whats the purpose of them on that installation?

Stuart.

 

I would expect its only collecting the vaccuum lines for metering purpose.

It is always a bit nasty to get rid of the pulsations in the vaccuum to receive

a clear information for metering.


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Cheers

Andreas


#15 TriumphV8

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    Triumph TR6 blue 5.0 EFI with Rover engine and Megasquirt

Posted 15 June 2018 - 04:34 PM

The difference to carbs is +15HP for free

but also for PI there is some difference.

 

1.) PI does not see the rpm signal. Metering full load at 2000 rpm is the same

as at 5500 rpm per revolution. Unfortunately the engine can not digest the perfect

metering amount at 5500 if you have lower revs.

Either you have to set it for 2000 and lean at 5500 or set at 5500 and overrich at 2000.

 

2.) PI does not recognize different air temperature

but warm air contains significantly less oxygen per litre.

 

3.) PI does not recognize different air pressure that will happen on higher altitude

but also under different weather conditions.

 

4.) EFI can control itself with a AFR wideband sensor.

 

5.) EFI can set itself and learn with the wideband sensor.

 

6.) EFI can be set lean in some areas for cruising and can be set rich

for best performance in other areas. They can be defined and found very easy.

 

7.) Cold start can be programmed to perform automatically.

 

8.) EFI has an acceleration enrichment to avoid leaning when pressing the pedal.

also it has a leaning function under deceleration to save fuel and get better emissions.

 

9.) It has a fuel cut of for maximum engine braking and fuel economy.

 

10.) It can drive the ignition if required and can be set more detailed

and much better than the 123tune for example.

 

To be continued........


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Cheers

Andreas


#16 marki

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Posted 15 June 2018 - 10:00 PM

Hi All.
I presume the debate is about the six nylon pipes from a manifold, these are for the idle air. Basicly the throttle bodies are fully shut at no throttle and the air intake s controlled by an idle air valve this controls cold start as well. As Tom has described already fuel consumption response drivability and for me a big bonus is reliability as I didn't get on with MR Lucas.
Idle air control valve is on the left.
Cheers Mark.Attached File  IMG_1239.JPG   120.42KB   2 downloads
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non boring cars previously owned

1965 mk1 cortina GT

1965 m1 lotus cortina

1973 stage 2 prep escort mexico

1980 lotus sunbeam

1968 modified moggie convertable

why did i sell them ?

#17 DRD

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Posted 17 June 2018 - 08:09 AM

Hi Guys
 
Does anybody have any experience of the kits supplied by this co. called Classic Car Injection.co.uk
 
I am considering converting my 1972 CP/PI
 
Best Regards  JohnR


This looks great, any idea on cost? Is it a DIY job?
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#18 JohnRoberts

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Posted 17 June 2018 - 08:15 PM

Hi DRD

 

 Their web site gives the price of £1450 complete. To fitted by anybody capable with spanners.

 

Regards JohnR


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#19 DRD

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Posted 18 June 2018 - 08:43 PM

Thanks John I'm tempted! I spotted that they've got one on TR4.
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#20 harrytr5

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Posted 19 June 2018 - 09:22 AM

If you look up past contributors on this subject you should be able to gauge if you want to go that route.

I did mine around 2011 using the original throttle bodies with the butterflies removed and a single throttle body on the air plenum. Emerald supplied the rest and a brilliant company to work with.

I am biased of course but the very best mod of the many I have done to my TR5. Remember it is now a modern set up and if it goes wrong a breakdown truck will have to collect it.Although if you carry a lap top and have a wifi signal Emerald might be able to diagnose over the phone.

Regards Harry


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