Search found 15 matches

by PhilipL
Sat Nov 07, 2015 8:53 am
Forum: Engines Area
Topic: Chysler 440 (7.2L) EFI conversion (Jensen Interceptor)
Replies: 43
Views: 16005

so I am expecting a huge increase in low rpm torque and maybe something in the top end (less important) with the Efi manifold. I always thought that shorter, wider trumpets aids top end at the expense of bottom end due to lower air speeds/momentum resulting in lesser cylinder filling at lower rpms....
by PhilipL
Fri Nov 06, 2015 8:35 am
Forum: Engines Area
Topic: Chysler 440 (7.2L) EFI conversion (Jensen Interceptor)
Replies: 43
Views: 16005

Nice job on the Jensen! Seems to be a clean work that looks like Ex-Works. Congratulations! Thank you Adreas I did my first "economy run" with the EFI and 4sp conversion just yesterday over a 217km trip trying to maintain 100km/h whenever safe/legal to do so, uphill and downhill. (Distance measured...
by PhilipL
Thu Nov 05, 2015 6:32 pm
Forum: Engines Area
Topic: Chysler 440 (7.2L) EFI conversion (Jensen Interceptor)
Replies: 43
Views: 16005

One must also bear in mind that the inlet manifold and cam profile go hand-in-hand.

I once tried a Kent H218 on my d4.6 Disco2 with the THOR manifold. Disaster.

I can say that the Thor manifold + Kent H180 is "very deliciously". :lol:
by PhilipL
Thu Nov 05, 2015 3:52 pm
Forum: Engines Area
Topic: Chysler 440 (7.2L) EFI conversion (Jensen Interceptor)
Replies: 43
Views: 16005

DaveEFI wrote:I'm going to stick with EDIS
EDIS is a POTENT ignition system: https://www.youtube.com/watch?v=3uzT0PyqKaM
by PhilipL
Thu Nov 05, 2015 3:49 pm
Forum: Engines Area
Topic: Chysler 440 (7.2L) EFI conversion (Jensen Interceptor)
Replies: 43
Views: 16005

I'm going to stick with EDIS, since it seems happy enough at the peak revs on my 3.5. Wise. It will be a very special RV8 to test the upper limits of an EDIS-8 ignition system (>7000rpm). I used dual EDIS-6 ignition systems on my Jaguar V12 implementations. One could use dual EDIS-8 on a 16 cyl eng...
by PhilipL
Thu Nov 05, 2015 3:44 pm
Forum: Engines Area
Topic: Chysler 440 (7.2L) EFI conversion (Jensen Interceptor)
Replies: 43
Views: 16005

If anyone wants a complete top end from a 4.0 Thor, have one here. Or rather think it's everything apart from ECU. Yep, the THOR was designed with low end torque being the objective and basically peters out above 4500rpm. The Lucas unit only really gets going above 3000rpm. For a thor EFI to be "co...
by PhilipL
Thu Nov 05, 2015 3:09 pm
Forum: Engines Area
Topic: Chysler 440 (7.2L) EFI conversion (Jensen Interceptor)
Replies: 43
Views: 16005

Excellent reading ! I am currently converting my Rover V8 engine to EFi using factory Efi intake, If I may make a suggestion: 1) if you want a high revving engine with lots of top end power, use the LUCAS type EFI manifolds with 3.9 or 4.6 cast into the top of the plenum; 2) if you want a low revvi...
by PhilipL
Mon Nov 02, 2015 10:47 am
Forum: Engines Area
Topic: Chysler 440 (7.2L) EFI conversion (Jensen Interceptor)
Replies: 43
Views: 16005

EFI alone wont give you much of a power increase, mapped ignition probably helps more. Quite so! I did not do the EFI conversion for the sake of power but for the sake of refinement and economy. I first implemented the wasted spark ignition on its own and this brought about a MAJOR improvement in t...
by PhilipL
Sun Nov 01, 2015 9:43 am
Forum: Engines Area
Topic: Chysler 440 (7.2L) EFI conversion (Jensen Interceptor)
Replies: 43
Views: 16005

Lovely job. Thank you! This may come as a surprise, but if I were to get another Interceptor (and I hope I do), I would NOT repeat the EFI conversion. I had the car running 99% fine on the Carter carb, compliments of excellent videos on Youtube (starting here: https://www.youtube.com/watch?v=fzNhCL...
by PhilipL
Sun Nov 01, 2015 6:21 am
Forum: Engines Area
Topic: Chysler 440 (7.2L) EFI conversion (Jensen Interceptor)
Replies: 43
Views: 16005

Again, the purists won't like it Yep. Well, stuff them. I want to drive and enjoy the car to the max while I have it. And to run a 7.2L at 3000rpm doing 120Km/h will surely kill the earth in less than 20km!! Besides, everything is bolt on and can be reverted back to original. I kept all the origina...
by PhilipL
Sun Nov 01, 2015 6:09 am
Forum: Drivetrain & Transmission Area
Topic: GM 4L60e 4-sp conversion (Jensen Interceptor)
Replies: 11
Views: 6144

was looking at the gearbox controllers before :) OK, read about the GPIO (TCU) hardware here: http://www.msgpio.com/manuals/index.htm You can now choose which firmware (the software that runs on the hardware) you want to run on the GPIO: 1) Megashift: http://www.msgpio.com/manuals/mshift/4L60e.html...
by PhilipL
Sat Oct 31, 2015 8:48 pm
Forum: Drivetrain & Transmission Area
Topic: GM 4L60e 4-sp conversion (Jensen Interceptor)
Replies: 11
Views: 6144

JSF55 wrote:You need to be logged in to read that page :(
Any questions I could help with?
by PhilipL
Sat Oct 31, 2015 4:47 pm
Forum: Drivetrain & Transmission Area
Topic: GM 4L60e 4-sp conversion (Jensen Interceptor)
Replies: 11
Views: 6144

GM 4L60e 4-sp conversion (Jensen Interceptor)

A good V8 needs an appropriate transmission behind it. My Jensen Interceptor was running 3100rpm at 120km/h in 3 with its original Chrysler A727 transmission. This simply would not do in this day and age. Now its running with a GM 4L60e (electronically controlled) transmission and now its doing 2000...
by PhilipL
Sat Oct 31, 2015 4:33 pm
Forum: Engines Area
Topic: Chysler 440 (7.2L) EFI conversion (Jensen Interceptor)
Replies: 43
Views: 16005

Chysler 440 (7.2L) EFI conversion (Jensen Interceptor)

Hi All As to be expected I see there is a lot of Rover V8 activity in this section (which I've had my share of...) so how about something different? I present here a summary of my EFI conversion of the Chrysler 440 cubic inch (7.2L) engine in my '74 Jensen Interceptor. Pics below. Summary of the con...
by PhilipL
Sat Oct 31, 2015 4:17 pm
Forum: Please Tell Us About Yourself
Topic: Newbie from South Africa
Replies: 0
Views: 9535

Newbie from South Africa

Hi All Philip Lochner here from Centurion (near Pretoria) in South Africa. Joined this forum so that I could share a particularly interesting V8 project of mine with you. I've taken to EFI as a hobby almost 10 years ago now when Megasquirt entered my life. I've done numerous Rover v8 Megasquirt inst...

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