Its from Nissan Performance Mag, they put the Jim Wolf cams on their 3.5 Altima. Low and mid hp nothing to brag about but once they got past 5000, wow. Take a look at their dyno. 20 hp gain at redline!!

Doubt I'd get the cams for my car, its just not practical. Nice to see that they give some good top end kick tho! With losses estimated at 15%, that altima is making around 305 hp at the crank now too... wish I could say that about my car!

 

Whoa nice!

 

Hmm... almost $2500 spent for a dyno queen that will probably take longer in the 1/4 mi.

 

lol
10 chars

 

Where's Kloogy?!?

 

Hmmmnnn....didn't have to remove the engine either.

http://www.nissanperformancemag.com/...3/altima_cams/

Anybody know the lift specs on these? The TOMEI are available in 256, 264, or 268.

 

Yeah, but they did drop the front cover, removed the timing chain. Thats A LOT of work. SR20 cam swaps can be done in 1.5 hrs! Impressive gains though. That car need the TS ECU..

 

20hp at redline for that much work? Jesus god no

 

Here's pessimistic know-it-all Dave B to ruin the thread.

While the "20hp" gains look nice on paper, I'm seeing the car loose power from 2000-5200rpms. At 5700rpms the cams are making some decent gains, but then the fun stops at 6500rpms. Gaining an average of ~12whp from 5800rpms to 6500rpms really won't make this car any quicker in the 1/4 mile. If anything it may be slower due to the loss in power in the low/mid range. Us 4th gen guys learned a hard lession when we installed MEVIs. We lost a mere ~10fwhp/fwtq from 3000-5000rpms, but gained 20-40fwhp/fwtq from 5500-6500rpms. In the 1/4 mile, our ET/MPH was unchanged or suffered because the loss in power in the midrange couldn't be overcome by the huge gain up top because car's spend more time accelerating in the midrange than they do in top end. Not until 90mph did the MEVI really show it's stuff. It took an extended rev limiter (7000+rpms) and an ECU that gains midrange to propel our MEVI 4th gens to significantly better ET/MPHs. I think this cammed Altima will be the same way because the power losses and gains are almost exactly like the MEVI gains/losses. Not until motor is in the longer gears and is accelerating thru the powerband at a slower pace will the gains become realized (90mph+).

Add an extended rev-limiter 7000rpm and ECU that gains some midrange and you're looking at a nice .2 and 2mph gain in the 1/4 mile.

JWT cams $1300
Install $700
Technosquare ECU $500

Total: $2500

Of course when you add it all up, that's a lot of money for minimal gains. 14.1s are nice, but a guy just pulled a 14.2@97mph in his bonestock Altima at my track last weekend.

One more final note, I don't trust these guys at Nissan Performance Mag. Their gains are ALWAYS rediculously high, especially with the JWT stuff. I'm starting to believe Nissan Performance Mag is actually related to JWT in some way. I'd wait till and independent is done.

Dave

 

So they didn't have to remove the engine? That 1-3-5 cylinder valve cover must have been a real b1th to work out of there...not to mention removing the existing cams and repalcing them with the JWT cams.

 

The VQ35s can easily give up some torque and still have plenty.

1/4-mile isn't everything Dave, I would gladly sacrifice the LITTLE torque my car makes for those top-end gains. I'm a hwy flyer NOT a hole-shot racer. Plus, I will pair it with a TS ECU to really take advantage.

 

Per my comment above, I agree with Dave B on this one.

 

With the ECU upgrade, those cams would make a very, very mean top end for the 3.5.

 

BTW the car ran a 14.1 @100.1 mph.


probly could be improved upon, but I can imagine with the ECU, that MPH would be higher, 2 mph maybe with RPM's extended another 500-600.

 

It be better if you have an extra block to install them on. Like if you were building a motor for boost.

 

Im here ....

I agree with SR and Dave. I see the trap speed is at 100 mph, which is good, but Im sure a Max with TS ECU and GOOD headers can rip that with no problem. I dont see any improvement from these cams.....