The V8 Owners Forum - Forum Index The V8 Owners Forum -
Welcome to the well-known V8 Owners Forum, no matter what you drive if its V8 Powered you'll be made very welcome.
 
 GarageGarage   1/4 Mile Table1/4 Mile Table 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Gadanga from Swindon

 
Post new topic   Reply to topic    The V8 Owners Forum - Forum Index -> Please Tell Us About Yourself
View previous topic :: View next topic  
Author Message
Vard66
Newbie
Newbie


Joined: 29 Jul 2016
Posts: 4
Location: Marlborough, Wilts


PostPosted: Sat Dec 31, 2016 10:46 am    Post subject: Gadanga from Swindon Reply with quote

Hey guys.

Long term Rover driver, but new to the 215/RV8. Just bought into Land Rovers and after buying a complete shed of a 300TDi I've stripped it and am putting the off-road kit onto a '95 3.9 Discovery 1 primarily for green laning.

28, Marlborough West Wiltshire, Electical Engineer working in Swindon.

Unlikely to post much, but I'll be poking about looking for common ailments and doing a bit of research as I'm intending on picking up another 3.9 (or possibly a 4.6, undecided yet) and rebuilding while I run the original 3.9, with the aim to ramp up the low end torque for easier green lane cruising rather than top end hp.
_________________
_________________
1994 Rover 820 Vitesse fastback
1995 Land Rover Discovery 3.9 V8 manual
2004 Vauxhall Astra 1.7 CDTi SXi

Vard.
Back to top
View user's profile Send private message
ChrisJC
Top Dog
Top Dog


Joined: 20 Nov 2006
Posts: 4479
Location: Northants / Cambs

1963 Land Rover Series II

PostPosted: Sat Dec 31, 2016 2:10 pm    Post subject: Reply with quote

Welcome aboard!

Chris.
_________________
--
Series IIA 4.6 V8
R/R P38 4.6 V8
Back to top
View user's profile Send private message Visit poster's website
DaveEFI
Forum Contributor
Forum Contributor


Joined: 26 Feb 2010
Posts: 3807
Location: SW London, UK


PostPosted: Sat Dec 31, 2016 3:10 pm    Post subject: Reply with quote

Depending on what injection you have, you can usually get a very worthwhile gain at the bottom end by going to mapped wasted spark and mappable injection.

On my SDI, the biggest difference in performance after doing this was to the bottom, not top, end.
_________________
Dave
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y
Back to top
View user's profile Send private message
Vard66
Newbie
Newbie


Joined: 29 Jul 2016
Posts: 4
Location: Marlborough, Wilts


PostPosted: Sat Dec 31, 2016 5:26 pm    Post subject: Reply with quote

It's '95, believe that's pre-motronic, so should be GEMS? Not certain about that in any way shape or form though, as I said, new to the V8s, I'm used to working with MEMS on the T16 Turbos, so basically, not having to do anything at all until you're knocking on the door of 300hp at which point it'll struggle to automatically adjust the fuelling.
Didn't realise there were wasted spark options out there, I've been aware of EDIS8 for a while but haven't looked into it yet, for the moment I'm giving a go to the weird little multi-fingered condom affair to waterproof the ignition, filled with vaseline and liberally sprayed with ignition sealer when all tightened up, but if there's a definite performance bonus to be had by going electronic ignition or wasted spark then that might well be something I can suddenly justify more easily to kill two birds with one stone.
_________________
_________________
1994 Rover 820 Vitesse fastback
1995 Land Rover Discovery 3.9 V8 manual
2004 Vauxhall Astra 1.7 CDTi SXi

Vard.
Back to top
View user's profile Send private message
ChrisJC
Top Dog
Top Dog


Joined: 20 Nov 2006
Posts: 4479
Location: Northants / Cambs

1963 Land Rover Series II

PostPosted: Mon Jan 02, 2017 9:31 am    Post subject: Reply with quote

A Disco 1 3.9 will be the Hotwire system.

On those engines, the fuelling and ignition are basically completely separate. So you could go to EDIS8 + MegaJolt Lite Jr and keep the EFi unchanged (there is one connection between the two that I don't know how you sort out though).

Otherwise MegaSquirt will do all of it.

I used EDIS8 on mine for a while, it was excellent.

But for real torque increase, you need more cubes, i.e. a 4.6l bottom end with a suitable cam.

Chris.
_________________
--
Series IIA 4.6 V8
R/R P38 4.6 V8
Back to top
View user's profile Send private message Visit poster's website
DaveEFI
Forum Contributor
Forum Contributor


Joined: 26 Feb 2010
Posts: 3807
Location: SW London, UK


PostPosted: Mon Jan 02, 2017 10:18 am    Post subject: Reply with quote

Although I'm using EDIS and it works well, I'm not sure I'd use it now if starting again. Disadvantages are things like not having a user adjustable rev limiter. But it is simple to install and reliable.

As regards Megajolt, it works very well. But for more cost you could start off using MegaSquirt ignition only, giving you the choice of using it for the injection later on. You can use MS to drive either EDIS coils or smart units like LS single coil per plug, giving you full control of the ignition under all conditions. With single coils per cylinder you then have the choice of wasted spark or sequential.
_________________
Dave
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y
Back to top
View user's profile Send private message
mgbv8
Gold Member
Gold Member


Joined: 18 Nov 2006
Posts: 5326


1975 MG MGB GT V8

PostPosted: Wed Jan 04, 2017 7:30 pm    Post subject: Reply with quote

Welcome Vard Smile

Perry
_________________
Perry Stephenson
MGB GT + Rover V8
9.62 @ 137.37mph
Now looking for 8 seconds with a SBC engine
http://www.youtube.com/watch?v=nVscbPHgue0&list=UUqIlXfSAoiZ--GyG4tfRrjw

https://www.youtube.com/watch?v=eg3avnsNKrc&index=2&list=FLqIlXfSAoiZ--GyG4tfRrjw
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    The V8 Owners Forum - Forum Index -> Please Tell Us About Yourself All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
Make payments with PayPal - it's fast, free and secure!


Copyright www.v8forum.co.uk 2006. All Rights Reserved,
Forum Disclaimer: Any posts in the V8 Forum are posted by individuals acting in their own right and do not necessarily reflect the views of the owner, administrators or moderators.