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Jmm dev4 

 

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 Post subject: Re: Jmm dev4
Posted: Fri Jun 03, 2011 11:32 pm 
Oompa Loompa
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Age: 34

Posts: 29

Joined: 23rd May 2011

Ride: au2 ute 6cyl auto

Location: Camden
NSW, Australia

Thanks for all the help guys, everything seems to be settled in now, is making a lot better power and is a bit lumpier, but on the bad hand i just got 97km from the first quarter of my 70 something litre tank!
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 Post subject: Re: Jmm dev4
Posted: Fri Jun 03, 2011 11:43 pm 
Getting Side Ways
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Age: 57

Posts: 914

Joined: 22nd Mar 2005

Gallery: 1 images

Location: FNQ
QLD, Australia

You're enjoying it a little TOO much :wink:

On a serious note - bugger! - My cam always runs better fuel economy for normal driving. Pushing it harder always uses more of course.

I've just realised that driving this cam lightly is much the same result as flogging the std cam pretty hard - so claims of better fuel economy might be a bit... "subjective".

I've never worked it out on a km per L or km per tankful basis :shock:

 

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 Post subject: Re: Jmm dev4
Posted: Sat Jun 04, 2011 5:16 pm 
Tyre Shredder
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Posts: 363

Joined: 16th Jul 2007

Ride: EL Falcon

Power: 146 rwkw

Location: sydney
NSW, Australia

Good luck with it buddy.
Just like to say where i got my car dynoed he told me he had a ef falcon with a JMM DEV 5 KIT.
JMM claim 160- 175 rwkw (something like that). The car on his dyno made only 145 rwkw & less torque than my car. He told me that the guy was DEVistated.
Have you seen JMM dyno ? It's something made in BC.
Please let us know how it goes & if possible some dyno fig.

 

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FORD EL 4.0L. Crow cam, T.I Performance J3 Chip, Vernier cam gear, SPR ported head, 68mm TB, AU head gasket + ARP studs, AU injectors, Pacey 4480, High flow cat, Shift kit, Stallie, 3:73 TrueTrac.

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 Post subject: Re: Jmm dev4
Posted: Sat Jun 04, 2011 8:06 pm 
Getting Side Ways
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Age: 57

Posts: 914

Joined: 22nd Mar 2005

Gallery: 1 images

Location: FNQ
QLD, Australia

I like what I'm hearing about Wade cams - they weren't doing I6 cams yet when I got my JMM one...

I've been waiting for their billets to arrive.

And to be clear, the OP made it clear he already had bought his Dev4 cam - so i provided info as best i could on that basis. If he had said he was LOOKING at getting a Dev4 I would have suggested trying a Wade cam instead as the feedback on them is good and they're cheaper...

 

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 Post subject: Re: Jmm dev4
Posted: Sat Jun 04, 2011 8:16 pm 
Tyre Shredder
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Posts: 363

Joined: 16th Jul 2007

Ride: EL Falcon

Power: 146 rwkw

Location: sydney
NSW, Australia

Sorry. I didn't mean anything bad about what i said.
Any mods on a 6 cyl. ford will liven it up, i'm all for it.
Let us know how it goes fellow ford mods member.

 

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FORD EL 4.0L. Crow cam, T.I Performance J3 Chip, Vernier cam gear, SPR ported head, 68mm TB, AU head gasket + ARP studs, AU injectors, Pacey 4480, High flow cat, Shift kit, Stallie, 3:73 TrueTrac.

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 Post subject: Re: Jmm dev4
Posted: Sun Jun 05, 2011 6:40 pm 
Oompa Loompa
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Age: 34

Posts: 29

Joined: 23rd May 2011

Ride: au2 ute 6cyl auto

Location: Camden
NSW, Australia

its all going really good guys, fuel economy is still not the best but.......thats what you get with a 6 or a 8 right?

No dyno figure as yet but our workshop has one, just have to set it up one day.....
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 Post subject: Re: Jmm dev4
Posted: Wed Sep 07, 2011 7:00 pm 
Stock as a Rock
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Age: 29

Posts: 114

Joined: 2nd Mar 2011

Gallery: 1 images

hey, sorry to hijack the topic
but im looking at putting a JMM 3000 series preformance stall converter in my ef. How much preformance will i gain? and is the JMM one the best?
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 Post subject: Re: Jmm dev4
Posted: Wed Sep 07, 2011 7:23 pm 
Getting Side Ways
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Posts: 890

Joined: 1st Apr 2005

Gallery: 4 images

Ride: EF XR6 Wagon, AU2 XR6 VCT

Power: 148 rwkw

Location: Auckland
New Zealand

Don't know about the JMM specifically, but my factory convertor is modified to stall at 2900rpm and it really jumps off the line, even with stock 3.45 diff gears. On the dyno, it will probably show a LOSS of power, as there is a bit more slip in the convertor.

 

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95 EF XR6 wagon, 17" FTRs, DBA rotors, KYB/Koni, AU bottom end, ported EF head, backcut valves, SS Inductions, Territory intake, 10.2 CR, Auckland 1258 cam, vernier gear, PH4480 headers, no cat, Tickford 2.5", 2800rpm stall, J3 chip

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 Post subject: Re: Jmm dev4
Posted: Wed Sep 07, 2011 9:20 pm 
Stock as a Rock
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Age: 29

Posts: 114

Joined: 2nd Mar 2011

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efxr6wagon wrote:
Don't know about the JMM specifically, but my factory convertor is modified to stall at 2900rpm and it really jumps off the line, even with stock 3.45 diff gears. On the dyno, it will probably show a LOSS of power, as there is a bit more slip in the convertor.

just as an idea would the 0-100 and 1/4 times improve?
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 Post subject: Re: Jmm dev4
Posted: Wed Sep 07, 2011 10:40 pm 
Getting Side Ways
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Posts: 890

Joined: 1st Apr 2005

Gallery: 4 images

Ride: EF XR6 Wagon, AU2 XR6 VCT

Power: 148 rwkw

Location: Auckland
New Zealand

I've never heard of a car going slower with a high stall. The little bit of extra drivetrain loss is more than compensated by hitting the powerband instantly and staying there. My high-stall is worth probably two car-lengths off the line, and first gear is over in a hurry. I don't stall it up (lights up the tyres), just mash it and it goes straight to nearly 3000rpm - no wheelspin, no drama, just a chirp, then haul. It doesn't feel any weaker at top end at all, but they say to expect the dyno to show a slight drop - not an issue in the real world.

 

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95 EF XR6 wagon, 17" FTRs, DBA rotors, KYB/Koni, AU bottom end, ported EF head, backcut valves, SS Inductions, Territory intake, 10.2 CR, Auckland 1258 cam, vernier gear, PH4480 headers, no cat, Tickford 2.5", 2800rpm stall, J3 chip

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 Post subject: Re: Jmm dev4
Posted: Wed Sep 07, 2011 11:19 pm 
Stock as a Rock
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Age: 29

Posts: 114

Joined: 2nd Mar 2011

Gallery: 1 images

does anyone have a quote on the 1636 wade cam. tried ringing them today no answer though :/
and roughly how much is it to get it fitted, sorry im abit of a newbie
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