According to Courtesy Nissan, it's 262 lift.

 

If anyone has experience... How bad can a lumpy idle be?
If the full race cams are installed is it 'just' a lumpy idle, or does it have any other affects on in-town driveng?

 

i'll check my cams this weekend; the specs are printed on the box.

as for a lopey idle, if its too much, the car may stall. driving around shouldnt be any problem since the engine is revved.

 

Thanks for the info 2k3silver350z! I just wanna know cold hard numbers as I'm definately not limited to nismo cams. Being that they arent even covered by the warranty in the first place. (Go figure). Even though my car is my daily driver, if I can get 30rwhp increase from some race cams, then damn, I will happily go with tomeis . I'll see if I can get any info from SGP racing regarding the cams and gains for the cams. Such a gain in performance will easily help justify the install cost of them suckers. I hope the cams can gain some low & mid range as well, maybe not in the area of ~30ish but atleast 10ish would be nice.

L8te!
--Justin

 

Another important factor with the tomei cams is whether or not they preserve the low & mid range torque & power or sacrifice it for top end grunt. I definately would love ~30 more hp, but not at the price of slower starts where i'd have to play catch up. hmmm... rather them see my tail lights the whole way

 

First off the Tomei cam specs are usually underrated. We have sold all profiles and no one is unhappy or reporting lopey idle. I have a customer with the 264 cams in a Maxima that has reported 22Fwhp and 12 Ft/Lbs of torque increase. The Hp gain was throughout the whole Rpm range. If I can get a dyno chart from the customer I will post it here and/or on our site.

Hope this helps.

 

Was there a loss of torque on the Maxima anywhere?

 

So I suppose it would be safe to say that since hp is calculated from tq and since it was an increase throughout the rpm range, then it was a consistent gain. Sweet! , damn I wish I had some numbers now on the 268 duration cams, I would love to know if they would drop tq down low to gain hp up high, hmmmm...

 

i don't think it will at all. you should see a consistant power gain throughout the RPM range.

 

A lumpy cam can adversely affect street driving. I had a mild-cam on my old Mustang and my brother has a pretty wild cam in his Cutlass. Neither car liked cold weather, and they always ran like crap until warmed up (my Mustang blew the power valves on the Holley carb a couple times due to backfires). Now EFI will take care of some of this, but you will still have to battle with low vacuum at low RPMs (this will affect the power brakes and anything else run off vacuum). Generally speaking, these cams will lose HP over stock until they "come on cam"...unless you run more than 3000 RPMs on the street, it will really **** you off. In short: what HP the big cams take off on low RPMs, they will add to the high RPMs.

At the drag strip these kinds of cams will help you. At the road course, they will really hurt you. (You don't see many F1 cars throwing flames like Top Fuel cars, now do ya?)

But then again, seeing an open 4-ft Cutlass door bobble 3 inches up and down on idle is a pretty humbling sight...

 

I dont know man. How often do you power out of a corner at 2500 rpms on the track??? the answer should be not often, cause that's downshift before the corner time if you ever did. Low end power is great for the street but in any form of racing, midrange and high end power rules.

 

i think itr and archman kinda agree with each other here: more aggressive cams not great for street but good for track

anyways, whoever gets the tomeis of whatever specs, i'd like to see real world results and impressions

i already have the nismos and will get them installed in a couple weeks.

 

You have a good point there. However, you still want your cam to be on target even as low as 2500 RPM since it will guaranty a snappy response at 4000 RPM.

Yes, lumpy cams do not make for much fun on the street. I'll be awaiting the news on the Nismos!!

 

you are correct. i checked this weekend and its 262. even better

 

Did you install them yet? Please let us know how it performs.

 

i'm dropping the car off this weekend and will pick up the following weekend.

unfortunately my review will be of the cams/headers/flywheel as these will be installed at the same time. i dont have the time/$$$ (especially the time) to install individual parts and dyno, etc.

 

That's ok. I have the headers, just wanted to get an idea of how the cams can add to that

 

262 *duration* and 10.2 lift. Also keep in mind that those numbers are usually overratted where as the Companies like JUN, Tomei, etc... Underrate what the specs really are .

 

I talked to the place that will be doing your car. They're really a great group of tech's and I'll be there every day to monitor the progress!!

 

Does anyone have actual dynos on these cams? I'm sure Nismo probably has one showing their HP gains.

Seems everyone is talking around 20rwhp... maybe a little more... by changing cams.

That's not much for an investment approaching $2000 ($1000+ for parts and install fees if you don't do it yourself). That's a pretty sizeable downpayment on an ATI Procharger if you ask me.

I'd be more inclined to save up for another month or two and go FI. For 3x the price you will gain 5x-6x the rwhp or more. Hey, matter of fact, that is what I'm doing!