Search found 3828 matches

by stevieturbo
Sun Feb 19, 2023 4:36 pm
Forum: Drivetrain & Transmission Area
Topic: LT 77 Gearbox removal problems
Replies: 5
Views: 3643

Re: LT 77 Gearbox removal problems

Height will help you to give you room to work. Most people use very small jacks, very small axle stands etc etc....not always safest. Although the LT77 isn't the heaviest compared to some boxes. I've a large high lift long reach jack, so can easily get up about 60-70cm no bother, and 6T axle stands ...
by stevieturbo
Sun Feb 19, 2023 2:27 pm
Forum: Engines Area
Topic: Rover v8 mx5 won't rev up
Replies: 24
Views: 13556

Re: Rover v8 mx5 won't rev up

And that is clearly off cylinders, it is not running on all 8 in that video.
by stevieturbo
Sun Feb 19, 2023 2:27 pm
Forum: Engines Area
Topic: Rover v8 mx5 won't rev up
Replies: 24
Views: 13556

Re: Rover v8 mx5 won't rev up

Hi stevie, First of all, I'm obsessed with your capri! How do I see mixtures? I'll get a timing strobe ordered. Please see attached https://youtu.be/NApCtqk9uyU https://youtu.be/LZkmIuxTPjw Many thanks Rowan I don't own a Capri ? As already said, you can check mixtures with a wideband lambda.
by stevieturbo
Sun Feb 19, 2023 1:46 pm
Forum: Engines Area
Topic: Rover v8 mx5 won't rev up
Replies: 24
Views: 13556

Re: Rover v8 mx5 won't rev up

You need to know mixtures, no guessing or assumptions.

Timing....with a timing light of course.
by stevieturbo
Sat Feb 18, 2023 10:53 pm
Forum: Engines Area
Topic: Rover v8 mx5 won't rev up
Replies: 24
Views: 13556

Re: Rover v8 mx5 won't rev up

Hi there, Just joined this forum so be gentle. I've got a 3.5 rover v8 in a mazda mx5 with a supercharger on the top pushing 12psi. It's running the tvr tune resistor as it's more rich, exhaust was glowing red before this was changed, very lean It runs lovely up to about 3k rpm then it backfires, l...
by stevieturbo
Tue Feb 14, 2023 6:27 pm
Forum: Electrical & Ignition Area
Topic: EDIS timing map on stock rover v8 4.6 with 4.2 cam
Replies: 32
Views: 21383

Re: EDIS timing map on stock rover v8 4.6 with 4.2 cam

TPS vs RPM is a measure of load.

Not the one I would prefer, but it is still a measure, estimation of load.

I would prefer MAP as already said, but for such an engine, not that big a deal really.
by stevieturbo
Sun Feb 12, 2023 3:36 pm
Forum: Electrical & Ignition Area
Topic: EDIS timing map on stock rover v8 4.6 with 4.2 cam
Replies: 32
Views: 21383

Re: EDIS timing map on stock rover v8 4.6 with 4.2 cam

on a related note, I was looking thru the install cd and maps, found that GM big block map is a good match for rover v8, versus rover v8 map, aside from a high redline of over 7k rpm and max advance of 52 deg at high rpm. quite curios and interesting. Stevie, thanks. let me review your post and vis...
by stevieturbo
Sun Feb 12, 2023 1:52 pm
Forum: Engines Area
Topic: 3.5 SU Lumpy Hot Idle
Replies: 6
Views: 2068

Re: 3.5 SU Lumpy Hot Idle

3 deg sounds really low for timing ? And equally, 4psi sounds quite high for a lot of SU's Whilst I did once own a colourtune, I've never actually used one. And given you would probably only check it in one cylinder.....you never really know what the rest are doing ? For anyone trying to do any tuni...
by stevieturbo
Sun Feb 12, 2023 1:48 pm
Forum: Electrical & Ignition Area
Topic: EDIS timing map on stock rover v8 4.6 with 4.2 cam
Replies: 32
Views: 21383

Re: EDIS timing map on stock rover v8 4.6 with 4.2 cam

still potentially seems a lot I would also set the 2nd column where your idle speed is, so you have another column below it, which you can use to bump idle timing a little to increase torque if idle or rpm falls lower. And no need for WOT at lower rpm's to have as much timing as that. And equally WO...
by stevieturbo
Sat Feb 11, 2023 10:28 am
Forum: Engines Area
Topic: Pressure testing block
Replies: 4
Views: 3153

Re: Pressure testing block

Can you submerge the block in a tank of water ?

Or pressurise it with a smoke machine to highlight any possible leak areas ?
by stevieturbo
Wed Feb 08, 2023 8:19 pm
Forum: Electrical & Ignition Area
Topic: EDIS timing map on stock rover v8 4.6 with 4.2 cam
Replies: 32
Views: 21383

Re: EDIS timing map on stock rover v8 4.6 with 4.2 cam

I have googled to nauseum and never came across your findings, thank you. I will try and remap sometime in the next week if health and time allows. viewtopic.php?t=15725 I wish the table on this post was visible, I cannot see it. from description seems promising. Thanks again. You don't really need...
by stevieturbo
Tue Feb 07, 2023 8:28 pm
Forum: Electrical & Ignition Area
Topic: EDIS timing map on stock rover v8 4.6 with 4.2 cam
Replies: 32
Views: 21383

Re: EDIS timing map on stock rover v8 4.6 with 4.2 cam

A quick google http://forum.britishv8.org/read.php?6,70737 https://www.locostbuilders.co.uk/viewthread.php?tid=66672 https://www.v8forum.co.uk/forum/viewtopic.php?t=15725 https://forums.lr4x4.com/topic/4261-rover-v8-torgue-and-ignition-graphs-data-needed/ A lot are seeming to indicate around 32deg f...
by stevieturbo
Mon Feb 06, 2023 6:24 pm
Forum: Electrical & Ignition Area
Topic: EDIS timing map on stock rover v8 4.6 with 4.2 cam
Replies: 32
Views: 21383

Re: EDIS timing map on stock rover v8 4.6 with 4.2 cam

Then simply.....what timing did the dizzy have ? and start from there with the table. I would probably prefer a MAP based setup, as at least then you can better account for engine load, which isn't quite the same as throttle openings. And as others have said, 42deg at full load sounds rather high. A...
by stevieturbo
Sun Feb 05, 2023 6:36 pm
Forum: Electrical & Ignition Area
Topic: EDIS timing map on stock rover v8 4.6 with 4.2 cam
Replies: 32
Views: 21383

Re: EDIS timing map on stock rover v8 4.6 with 4.2 cam

I know what the table is And I asked a specific question....what is "your" load ? throttle ? MAP ? other ? Is it calibrated correctly ? And again I ask have you confirmed the timing you expect, is what is seen at the spark plug/cylinder ? Full throttle will not stress the engine. Although incorrect ...
by stevieturbo
Sun Feb 05, 2023 9:42 am
Forum: Electrical & Ignition Area
Topic: EDIS timing map on stock rover v8 4.6 with 4.2 cam
Replies: 32
Views: 21383

Re: EDIS timing map on stock rover v8 4.6 with 4.2 cam

Firstly...have you confirmed timing you expect, is confirmed at the plug ?

And a table like that with no terms of reference, means little. What to you is your "load" ?

And why would you say it should never see full load ? Of course any engine should at some point.

Go to advanced search