Jim Wolf-Cams/ECU in developement
06-19-2003, 02:07 PM
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Jim Wolf-Cams/ECU in developement
I was curious what Wolf had brewing so I called and a tech representative said that they are in final developement of cams and should also have an ECU out in the next 3-6 months. I wasn't given any other specific info...
06-19-2003, 07:05 PM
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Originally posted by importriders
I have a picture of a dyno sheet from a 350z that had the JW cams, intake, and flywheel. This was at the Stillen event.
I have a picture of a dyno sheet from a 350z that had the JW cams, intake, and flywheel. This was at the Stillen event.
06-19-2003, 07:19 PM
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Actually Cams have been available for some time now through Tomei. We have sold 6 sets already. One thing to also note is the stock retainer on the 350Z is made from a cast 2024 Aluminum which is light but extremely weak. I have a feeling that when people start upgrading to bigger cams and forced induction we are going to start seeing some dropped valves 
Oh did I mention that we have already produced some titanium retainers for the VQ35DE's that are much stronger
Oh did I mention that we have already produced some titanium retainers for the VQ35DE's that are much stronger
06-19-2003, 07:28 PM
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Cam performance.....
Kyle, tell us about the cams...power? idle quality? What's the good set to put in for the bang for the buck ideal?
Also are they a tough install??
THX....
Also are they a tough install??
THX....
06-19-2003, 07:38 PM
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I have one of those rare sets of JWT billets for the VQ in my Maxima. Jim got them done for the 350Z, but came out with them for the VQ30 first. The VQ35 has a slightly different nose on the cams than the VQ30, so there is a slight machining modification that had to be done to adapt them. I can tell you that they are big. It lopes like an old 400 chevy with a 292 cam...and I do mean LOPE. The motor has no power under 2K and doesn't really pull at all until 2.5. From there to 4-5K it feels stock. Just before 5K, they hit like a small shot of NOS or hitting 5 psi of boost and there is a ruch at the top end. The car really does "hit cam." There are valve springs that go with the cams for the extra rpms and without an ECU, the cams aren't really worth it. At 6600 rpms, the car hasn't even hit power peak. My prototype ECU program has a 7600 rpm limiter. But I also have a built motor with Pauter rods and pistons to support not only the boost I will be seeing, but also the roms. For the Z, he is thinking about a couple of changes. First, he is looking at putting the cams on a wider lobe sep to smoothen them out more. Second, he is planning on limiting the ECU to 7200 rpms for stock internals. ECU development is unfortunately very slow at JWT, so it may take a while.
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06-20-2003, 08:34 AM
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Originally posted by Kyle(Houston)
One thing to also note is the stock retainer on the 350Z is made from a cast 2024 Aluminum which is light but extremely weak.
One thing to also note is the stock retainer on the 350Z is made from a cast 2024 Aluminum which is light but extremely weak.
weak .... no..... weaker than Ti.... yes
Last edited by N74DV; 06-20-2003 at 08:47 AM.
06-25-2003, 06:18 PM
#13
*Cast* 2024. It is a pretty weak alloy for the stress of a valve train. I quess we will see what happens once people start supercharging and turbo charging plus when a ECU comes out with a raised rev limiter
I think we might see some dropped valves
I think we might see some dropped valves
06-25-2003, 07:07 PM
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will that retainer hold for 7000rpm redline? I am planning to get ecu upgrade, and raise the redline to 7000rpm.. don't really want to change the retainer if I don't have to..
06-26-2003, 09:17 AM
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The stock retainers will definitely hold the pressure at 7000 rpms. The issue will be the valve springs. They will float will any lift over a stock cam at 7000 rpms. I can't see going to any cam upgrades without getting valve springs. If a valve hits a piston, the motors gone.
06-26-2003, 01:53 PM
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Originally posted by Loren04G35
The stock retainers will definitely hold the pressure at 7000 rpms. The issue will be the valve springs. They will float will any lift over a stock cam at 7000 rpms. I can't see going to any cam upgrades without getting valve springs. If a valve hits a piston, the motors gone.
The stock retainers will definitely hold the pressure at 7000 rpms. The issue will be the valve springs. They will float will any lift over a stock cam at 7000 rpms. I can't see going to any cam upgrades without getting valve springs. If a valve hits a piston, the motors gone.
However, be assured, JWT will do their homework and will bundle the Ti springs when needed.
They do for the other NISSANs.
06-26-2003, 02:54 PM
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Originally posted by Flyingscot
No ****! There's a reason why NISSAN set the rev limiter at 6600rpm. Add in manufacturing tolerances and OEM conservative approach and you get 7,200+rpm disaster area.
However, be assured, JWT will do their homework and will bundle the Ti springs when needed.
They do for the other NISSANs.
No ****! There's a reason why NISSAN set the rev limiter at 6600rpm. Add in manufacturing tolerances and OEM conservative approach and you get 7,200+rpm disaster area.
However, be assured, JWT will do their homework and will bundle the Ti springs when needed.
They do for the other NISSANs.
06-26-2003, 03:04 PM
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Actually, JWTs springs are not titanium. They are single undampened steel springs. They looked at over 100 sets before deciding on one. Jim believes in controlling weight by keeping away from multiple springs and dampers. Going to multiple springs is done when the exact spring rate can not be achieved from a single spring. His springs have an oval cross section to them. Because the spring weight of the single spring is quite low, no light weight retainers are necessary. Dampers are used to control spring oscilations. The springs he has speced out for the VQ cams have no oscialtions until 7600 rpms. He is still looking at a set of springs to rev higher, but this set is available now.