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JMM Motorsport DEV 5 Cam or 977b? 

 

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 Post subject: Re: JMM Motorsport DEV 5 Cam or 977b?
Posted: Thu Aug 05, 2010 10:17 am 
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DRHEMI wrote:
Here is the answer i got - yes its all about what purpose your going to use it for - yes of course i gave a full description of the car ------

Baically i wanted to pull the 977b out - replace with JMM DEV 5 and retune and have a better 1/4 mile as is without any change to stall or diff - like for like comparison

I must say that they did answer my emials very quickly - impressed with that :)

Yeah try the DEV 5 I wanna see the results
Quote:
It seems you are battling with some things with you car.
I would like to see if we can get your car up and going a bit better than it is.

I can definitely suggest our 3000 rpm converter, it will work very well. I can also recommend the
dev5 cam and retune your J chip to get that right.

Drag times are not about all out power figures as you may have come to understand.

You need to get power from the start line all the way to the finish line.

I would also suggest the 3.9 diff ratio as it will suit what you are doing
.


You'd think that email was either a template or written by a man who tries to get anyone through th door then sting them with prices after its too late to back out.
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 Post subject: Re: JMM Motorsport DEV 5 Cam or 977b?
Posted: Thu Aug 05, 2010 10:43 am 
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cjh wrote:
I asked Wade cams about a custom grind, as in a re-grind cam, and they couldn't get the LC I wanted.....so I'm looking at a Camtech cam now.....billet....but have to wait 4 to 6 weeks for their supply of billets to come in.....said they'd been waiting quite some time for them.


Very interesting, I don't think anyone had been able to get billets for a while as they all get them off the same supplier in the US, I could be wrong though.

Regardless, if there is another batch of billets coming in I want to get my hands on a few.

 

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 Post subject: Re: JMM Motorsport DEV 5 Cam or 977b?
Posted: Thu Aug 05, 2010 11:03 am 
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I wouldn't personally touch JMM, Way to many rattly chains caused by the cam. Regrinds are s**t anyway. Having HLA's spaced out of the rocker arms buy shims just doesn't leave a good feeling in my stomach. Seen to many broken rocker gear.

Look into http://www.camtechcams.com.au/ I ran a mild cam from them, Wow my car with 3.08's was as quick to 100 as a falcon with 4.11's.

EA-EL Cam CT006 846 - Wicked cam 1500-5000.

 

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 Post subject: Re: JMM Motorsport DEV 5 Cam or 977b?
Posted: Thu Aug 05, 2010 12:23 pm 
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edfairmont4.0 wrote:
I wouldn't personally touch JMM, Way to many rattly chains caused by the cam. Regrinds are s**t anyway. Having HLA's spaced out of the rocker arms buy shims just doesn't leave a good feeling in my stomach. Seen to many broken rocker gear.

Look into http://www.camtechcams.com.au/ I ran a mild cam from them, Wow my car with 3.08's was as quick to 100 as a falcon with 4.11's.

EA-EL Cam CT006 846 - Wicked cam 1500-5000.


Thats the cam I'm looking at, that would best suit for an off the shelf item.....I asked Camtech about a custom touch to this grind, but have no answer, been nearly 7 days now.

 

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 Post subject: Re: JMM Motorsport DEV 5 Cam or 977b?
Posted: Thu Aug 05, 2010 12:57 pm 
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skidder wrote:
cjh wrote:
I asked Wade cams about a custom grind, as in a re-grind cam, and they couldn't get the LC I wanted.....so I'm looking at a Camtech cam now.....billet....but have to wait 4 to 6 weeks for their supply of billets to come in.....said they'd been waiting quite some time for them.


Very interesting, I don't think anyone had been able to get billets for a while as they all get them off the same supplier in the US, I could be wrong though.

Regardless, if there is another batch of billets coming in I want to get my hands on a few.


ive heard the billets are now coming from europe?
wade cams have tested and approved the new au billet cams, so the billets will still be available.. soon!?
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 Post subject: Re: JMM Motorsport DEV 5 Cam or 977b?
Posted: Thu Aug 05, 2010 1:02 pm 
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TROYMAN wrote:

ive heard the billets are now coming from europe?
wade cams have tested and approved the new au billet cams, so the billets will still be available.. soon!?


Would that be Schrick Cams ????

 

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 Post subject: Re: JMM Motorsport DEV 5 Cam or 977b?
Posted: Thu Aug 05, 2010 1:10 pm 
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edfairmont4.0 wrote:
I wouldn't personally touch JMM, Way to many rattly chains caused by the cam.

i've driven 4 different cars with dev5s, none had chainslap.

xcabbi wrote:
You'd think that email was either a template or written by a man who tries to get anyone through th door then sting them with prices after its too late to back out.

reads like a retailer giving a potential customer good advice and trying to make a sale to me.

 

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 Post subject: Re: JMM Motorsport DEV 5 Cam or 977b?
Posted: Thu Aug 05, 2010 1:32 pm 
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my apologies about the jim mock billet thing.
when i spoke to him he said the wont touch my current cam, so i assumed they use billet rather then regrind but i guess i was wrong.
i asked a fellow who had jim do one for him and he said the cam he uses is a new standard cam, regrind-ed to his specs.
iv had a regrind for yonks with no problems, but reckons mock told him cams are only strongest on their outer core, regrinding it will expose weaker metal, so when going regrind its important to use a new cam with no wear and tear..
can anyone/mechanic confirm this or is it a case of bs???

 

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 Post subject: Re: JMM Motorsport DEV 5 Cam or 977b?
Posted: Thu Aug 05, 2010 3:33 pm 
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Sure cam, 218 Duration 543 valve lift.

be sure to get it tuned after and to have good springs. word of advice DO NOT USE A VERNIER, lil f**k slip. just live without it.

End of story.
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 Post subject: Re: JMM Motorsport DEV 5 Cam or 977b?
Posted: Thu Aug 05, 2010 4:27 pm 
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Verniers dont slip if you have the burred washers and do them up correctly...

 

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 Post subject: Re: JMM Motorsport DEV 5 Cam or 977b?
Posted: Thu Aug 05, 2010 6:01 pm 
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Red lock tighted and Brand new vernier from crow cams. (by roller master) she slipped...... she dead :-(

Anyways as is with everything it might work from some and might fail for others, it didnt fail straight away it failed after three months.

still was one hell of a car.
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 Post subject: Re: JMM Motorsport DEV 5 Cam or 977b?
Posted: Thu Aug 05, 2010 6:14 pm 
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True, however there are quite a lot of people running adjustable cam gear with no issues...

 

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 Post subject: Re: JMM Motorsport DEV 5 Cam or 977b?
Posted: Tue Aug 10, 2010 1:49 am 
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I have have a street fighter engine built by jim mock in vic installed in my 1995 ef ford auto, the engine has a dev 4 cam kit and the motor idles like crap and surges until 1500rpm or so and runs fine for the remainder of the rev range until it drops below 1500rpm again coming to a stop. This engine behavour only started since the engine install.

theres no smoke, all eletronics replaced under the hood / except ecu, all timing set correctly, vacuum lines all connected/no leaks.

i have been advised a 1500.00 + ecu piggy back system could resolve the problem.???
problem could also be a low vacuum due to the cam and that a well placed vacuum canister could also help the vacuum reserve or something like that.

Any ideas please?????????

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Street Fighter 6cyl with Dev 4 Cam Kit
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 Post subject: Re: JMM Motorsport DEV 5 Cam or 977b?
Posted: Tue Aug 10, 2010 1:57 am 
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Get a TI Performance J3 chip for $200...

 

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 Post subject: Re: JMM Motorsport DEV 5 Cam or 977b?
Posted: Tue Aug 10, 2010 1:58 am 
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A vac canister or tank would be a relatively cheap thing to try. Next up would be to forget such an expensive piggy back ecu & get a J3 with a good dyno tune. More than a few ppl are running J3 chipped ecu's with big power numbers....

Cheers

ToranaGuy

 

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