Search found 3 matches

by Jagboi
Wed Feb 21, 2018 6:38 am
Forum: Series 3
Topic: GM TH 400 Auto box - Series 3 Etype
Replies: 6
Views: 1417
Canada

Re: GM TH 400 Auto box - Series 3 Etype

Note that the GM400 is a 3 speed, not 4. The 4L60 and 4L80 are 4 speeds. The 4L80E is what Jaguar used for the 6.0 V12 cars, but it has a different bolt pattern than a 5.3 HE block, which I believe is also different from a 5.3 pre HE block. The 4L80E is a big transmission, I doubt it would fit in an...
by Jagboi
Wed Feb 17, 2016 6:12 am
Forum: Technical
Topic: 3.54 differential with 0.63 overdrive
Replies: 10
Views: 3657
Canada

I have a 1966 S Type 3.8 with a 3.77 ratio. Originally I had the 0.63 overdrive and it was too tall. I have also put on EDIS and EFI on this engine, it feels like it has much more torque than a standard engine. I changed the ratio to 0.73 and was much happier. It produces relaxed cruising without lu...
by Jagboi
Thu Sep 11, 2014 4:50 pm
Forum: Technical
Topic: 4.2 EFI.
Replies: 9
Views: 5266
Canada

I've been working on converting a 1966 S Type to EFI and I originally used MAP and the VE tables in megasquirt. On the 3.8 it was a nightmare to tune. On other engines I've done ( Chrysler 440) was easy, but the S Type fought me all the way. I've just switched to MAF using a Jaguar X300 AFM and it i...