VEMS Community Forum

Technical => Ignition => Topic started by: jrtuning_ben on February 02, 2007, 05:45:59 PM

Title: need a low dwell time 4 cyl external coil pack
Post by: jrtuning_ben on February 02, 2007, 05:45:59 PM
following on from this discussion on sxoc

http://www.sxoc.com/vbb/showthread.php?t=266662

if i understand it right i need a low dwell time coil pack. as said by bob ford ones are no good.

how are the subaru ones?

or has anyone any other ideas/experience?
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: [email protected] on February 02, 2007, 06:55:40 PM
The quickest charging coils that I've come across are the ones found on the Mitsubishi EVO4 with a usable spark at 2.3 to 2.5ms

The Driftworks coil packs are there to overcome the problems with the Coil on plugs.

You're not looking to replace the COPs just to drive them differently...
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: jrtuning_ben on February 02, 2007, 07:47:40 PM
i was hoping to start with to replace the coil on plug :)

then replace the driving system as well, but cant afford to change ecu and stuff yet as ive just got a new map for my current ecu (std)
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: dnb on February 02, 2007, 08:16:55 PM
I have had good success with 034 Motorsport coils on the TVR.  I'm using a dwell of 2.5ms.  No idea what dwell the Subaru coils like to run at, although I do have a pile of them sat in the corner...
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: jrtuning_ben on February 02, 2007, 08:27:17 PM
is there any way of measuring it?
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: jrtuning_ben on February 02, 2007, 09:39:27 PM
found this mitsubishi one http://cgi.ebay.com/ebaymotors/MSD-High-Performance-HEI-Coil-94-02-Mitsubishi-Neon_W0QQcmdZViewItemQQcategoryZ33689QQihZ018QQitemZ280076241803QQrdZ1QQsspagenameZWDVW
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: damo_S13 on January 04, 2008, 12:18:10 AM
ok im looking for a coil pack to use on my 200sx for waste spark

is this any good?

http://cgi.ebay.com/ebaymotors/MSD-Ford-Coil-Pack-4-Tower-PN-8241_W0QQcmdZViewItemQQcategoryZ33689QQihZ005QQitemZ150202062893QQrdZ1QQsspagenameZWDVW

thanks
damo

Title: Re: need a low dwell time 4 cyl external coil pack
Post by: [email protected] on January 04, 2008, 08:34:09 AM
That one is perfect, if you're buying it get a second one and I'll buy it off you - at that price it would be daft to not use one on my SR20DE.

Getting a suitable connector for the coils might be tricky though.
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: hilly on January 04, 2008, 02:13:47 PM
The connector on that looks like the one used on the Ford EDIS coil pack, your local scrapy would then be a good place for a connector.

Hilly
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: [email protected] on January 04, 2008, 02:20:10 PM
Yeah its an EDIS coilpack, and the newer Fords will have the connector... I just want a clean new one if I can get it!
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: jrtuning_ben on January 04, 2008, 02:37:48 PM
was talking to damo on msn last night and i also want one lol so thats three we need to order ;D ;D
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: [email protected] on January 04, 2008, 05:15:52 PM
Ben,

I dunno if your ECU has the ignition drivers in it, PM me with the serial number and what have you and I'll see what I can find out about it.
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: jrtuning_ben on January 04, 2008, 06:09:43 PM
will do when i pick it up :) its at angelworks at the minute i think or en route to angelworks. :)
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: [email protected] on January 04, 2008, 06:50:27 PM
okay...

Can you PM me with details who its from?

Rob
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: damo_S13 on January 05, 2008, 02:16:58 AM
ok ben is going to get in touch with them tomorrow for us rob :)
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: damo_S13 on January 07, 2008, 05:34:00 PM
well deb never got a reply from them so i have e-mail some one elss

postage is $57.50 USD taking 8 - 12 Days to get here and the coil packs are still $76

let me know you think rob, ben

damo
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: [email protected] on January 07, 2008, 07:07:12 PM
I'm all good with it
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: jrtuning_ben on January 07, 2008, 07:24:40 PM
i assume thats postage for all 3?

im happy at that price :) and when did my name change to deb ??? :P
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: [email protected] on January 07, 2008, 08:04:16 PM
I shouldnt take it personally... he called me Rod the other day ::)


;D
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: damo_S13 on January 07, 2008, 08:21:19 PM
sorry for getting all the names wrong im working to hard.

ok will put an order throught asap
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: damo_S13 on January 09, 2008, 12:09:35 AM
order placed and payed for :)
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: Will on January 15, 2008, 02:06:22 PM
Would FD RX7 coils  be any good? As these cars run silly RPM's so must have a low dwell time? Got to be better than EDIS ones?
Or what about the Mitsubishi Eclipse coils? Such as http://cgi.ebay.com/ebaymotors/MSD-Mitsubishi-4-Tower-Coil-Flat-Terminals-P-N-8239_W0QQcmdZViewItemQQ_trksidZp1638Q2em118QQcategoryZ33689QQihZ006QQitemZ160169223586QQrdZ1QQsspagenameZWD1V

Or any one got any recomendations for something to replace my EDIS one with?
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: [email protected] on January 15, 2008, 03:12:43 PM
I dont know anything about the Mitsubishi coils, as you say they have to be fairly quick charging for that RPM, but I've no idea how much spark energy is needed to ignite a rotary engine.

I always point 4A-GE installs towards the Mitsubishi EVO4 coil packs, Sweeps took a punt at using the EVO5 coils:
(http://img.photobucket.com/albums/v512/Sw33ps/Corolla/DSC00034.jpg)
These seem to work quite well at 2.5ms and a lot of these engines see 9500rpm on them.

FWIW I have a pair of EVO4 coils that will be available after I get the MSD EDIS coils
(http://www.vems.co.uk/VEMSLoom/Nissan/NissanWastedSpark.jpg)
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: Will on January 15, 2008, 06:46:20 PM
Yea I prob will be interested in them if you sell them, is there any part numbers on the EVO 4 or 5 coils?
I could try and see if they use them on other Mitsubishis as I have seen ones that look quite similer.
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: [email protected] on January 15, 2008, 07:43:38 PM
I would go and get a part number but I fear the rain would drown me on the walk to the car!

If you've seen ones that look similar and they dont cost much its worth giving them a go because you might just find a gem of a coilpack.

These ones will be for sale, technically they belong to Simon86 so you'd be needing to sort out things woth him.

Rob
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: damo_S13 on January 28, 2008, 05:32:22 PM
the coil packs are now here :) just need a plug for them now. will post a picture soon
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: damo_S13 on January 31, 2008, 02:11:03 PM
(http://i54.photobucket.com/albums/g109/damodevilsson/my%20200sx/DSC01660.jpg)
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: GintsK on February 01, 2008, 08:48:08 AM
Is it Ford type?
Ford used their own shape endings for spark cables . How about adapting this?
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: [email protected] on February 01, 2008, 09:04:12 AM
Yeah its a Ford type, I read the instructions and found that MSD say that different spark leads are needed for this coil.

If I get a chance this weekend I'll be taking mine down to the place that does the generic 8mm silicone leads and seeing what fits and the lengths available.

Rob
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: damo_S13 on February 02, 2008, 12:54:14 AM
Quote from: [email protected] on February 01, 2008, 09:04:12 AM
Yeah its a Ford type, I read the instructions and found that MSD say that different spark leads are needed for this coil.

If I get a chance this weekend I'll be taking mine down to the place that does the generic 8mm silicone leads and seeing what fits and the lengths available.

Rob

cool let me know if you come up with something and how much please :D
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: jrtuning_ben on February 02, 2008, 07:34:37 AM
and me rob :)

will 8mm be think enough? i wouldnt mind a little thicker  ;D
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: damo_S13 on February 08, 2008, 08:21:13 PM
any luck rob?
Title: Re: need a low dwell time 4 cyl external coil pack
Post by: damo_S13 on March 01, 2008, 12:15:09 AM
any one sorted leads yet?

i have found these that fit but are a bit on the Ã,£Ã,£Ã,£ side

http://www.performanceleads.co.uk/showdetails.asp?id=135

so i droped in to my local motor spaire and got a set of 2.5l v6 croger (spelling) leads for a discounted price of Ã,£29

(http://i54.photobucket.com/albums/g109/damodevilsson/my%20200sx/DSC00184.jpg)

just got to figure out where im going to mount the coil pack now and which leads to use  ???