JUN exhaust cam shaft finally arrived

Silo

Did we ever see any evidence that these cams did anything good?

Navyboy916

Yes I did. The cars screams to redline now and has a lot of power at top end. I can't dyno the car due to Guam not having a dyno. I am leaving to Hawaii soon and they have a couple of dynos and uprev tuners so I will be getting it done there. I know the car makes a lot more power then it did when it was in the stock format. I have the 272 duration cams and now they have larger cams so they will make even more power.

Silo

Looking forward to see some dyno comparisson.

Navyboy916

I am to I can't wait to get the numbers.

GEMu

Many Z34 here in BKK did the JUN cam, one of a guy I know installed the cam along with
an IMPUL throttle body and yield around 350whp on Dynojet so it hard to say where did the extra 20-30whp came from.
That Z got a custom stright pipe from headers, F con Vpro3.3 dyno tuned by one of the most famous race car tuner in Thailand, racing suction with HKS filter and IMPUL throttle bodies.
350whp on dyno jet in tropical climate like BKK is not too bad IMO, but the owner said the installation was PITA.

Jordo!

That's actually quite good -- even with headers and a tune. Do you have a link to the dynos, by any chance?

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GEMu

Honestly for me I think it a waste of money, especially for you guys over there with that rate of labor, here in Thailand I would say a cam swap in a Z34 would cost 100USD max, depending on if the shop is famous or not.

Sadly, a friend of mine already sell his car for a 430Scud and had not document his dyno run or keep a sheet, but he said the baseline was 285whp and after all the mods installed he claimed 350whp on dynojet.

20 more whp from normal full bolt ons, for 500USD on cams set and 3000USD on IMPULs plus US labor, you decide if this worth.

andre12031948

My head might explode...

SPOHN

This has to be the most BS mod period. Not the cams put the point that a couple of guys have installed or attempted to with no proven results. Swear I'm about to do it to get something proven for once.

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indyn

Why a BS mod!! JUN has a dyno graph on their site, look it up. A reputable company like them can't be making these for fun and giggles. Just because you dont see a Z owner post a dyno sheet on the forums doesn't mean they don't exist. JUN is popular over that side of the world and am sure this mod is as well.

BTW, they have two different duration cams now.

GEMu

And a pic of a installation.

Attached Images

image.jpg (174.0 KB, 81 views)

DEpointfive0

I see JDM mirrors. Gandalf or Ganador or whatever, lol

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Navyboy916

I am waiting for my z to get here in Hawaii and then I will get in tuned and denied finally. The car will be here this next week. I will finally be able to get some numbers for all of you.

Navyboy916

I have the cam installed in my z and even without a tune I love them. So much power all the way to redline. I will get it dynoed as soon as the car gets here and I can schedule it. I will them post the results. I have the 272 duration cams btw

MJB

Man, I must say you have heart . To spend the amount of money and the amount of time on this build, for maybe an additional 20whp on top of the whp gains from the bolt ons is insane, lol. I hope you make 350whp, but that may be a little too optimistic. Anxious to see the results.

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