Hey Guys,

So T&R Racing in NY had their annual dyno day. They gave you 3 pulls, HP numbers only and their floor dynojet. I had the opportunity to see a lot of cars dyno today, T&R is a big RX7/Supra shop and many of their cars did not dissappoint, except for one person who kept pushing it on the dyno and left with coolant leaking. The dyno was open to all makes and models so one guy had a HR 350z with exhaust and I believe an intake. To my surprise and frankly it wasn't a good surprise he only made 239whp. He was pretty upset and I felt for the guy. He wanted another set of runs but left before doing so. Damn guys, I'm a Z fanboy, but 239whp?? I know it wasn't the dyno, T&R had it dialed in, I guess the VQ35 Z's need major $$$ to keep up with a lot out there. Other than a Jetta I didn't see anything lower .

 

so what the piont of the thread?? also it not about the numbers but the gains. Also just from what i read for intakes and exhaust(cat back only, more deital please). If he did have more exhaust work done then that seems about with in the ball park. I just went to uprev in austin this past friday and only made 283hp :/ but it about the gains not the numbers in gains i made 10hp 8tq.(also this was a retune from adding injen intakes and y-pipe

 

So how did your RSX do?

 

So every other dyno that has indicated differently for an HR is incorrect?

 

where is da dyno sheet?
239 damn i would be pissed if my HR ran that!
i ran 235 whp at sp with intake only on my 03 DE

 

Either that was a DE with an HR hood, or that dyno reads lower than normal. The average for HRs is in the ~260WHP area.

 

God's motor cannot perform like this, what an outrage. Seriously dude? Numbers give you a ballpark, the track gives you an inch by inch spot on the ground of said ballpark. Quit benchracing and line up the Z next to some of the other cars that out-dynoed it and see the story then.

 

God's motor puts at least 400rwhp down stock.

 

Let's see the other cars there were rotaries putting down anywhere from 311whp to 466whp. It was definitely and HR motor, yeah I know its all about the gains but either way I agree that I'd be pissed off and trust me this dude wasn't happy. I don't have the dyno sheet, it wasn't my car they weren't going to give me a printout but hey if you think I'm bsing feel free to call T&R racing and they'll verify.

I purposely didn't mention my dyno numbers because THAT'S NOT THE POINT. The point is that THIS z33 with minor bolt on's didn't put down the type of power numbers that put it in the same class as many performance sports cars out there. I figured maybe you guys would have some insight as to why...

 

Maybe its a low reading dyno.

 

As far as I know, T&R is a low reading dyno.

BladeZ34: Actually, your dyno figures would be relevant. Then we'd be able to compare to what other 370Zs get on other dynos.

 

Are you seriously comparing NA to FI?

 

I actually was going to go to that event and dyno my Z. However, I'm waiting on a clutch kit I ordered, it didn't arrive as yet, so yeh, couldn't make it.

I have an 08 Z with HKS Tru-Dual and a Stillen Gen 3 intake. I haven't dyno'ed my Z yet, but if I made 239whp, I would be extremely disappointed.

However, I can't even begin to comprehend how that is possible. A stock DE should be putting out those numbers, not a HR with Bolt-Ons. Something is wrong.

 

It would have been cool if you rolled through, at least it would have given another example of what a z33 could do. I'm not comparing F.I. to N.A. I'm just drawing attention that this HR motor ran very weakly. I definitely disagree that T&R's dyno is a low reading dyno. It is a dynojet, not sure of the exact specs but most people I've discussed this with say Dynojet's actually read high, had this been a Mustang Dyno aka the heartbreaker dyno the 350z may not have broken 230whp who knows. This isn't about comparing my dyno #'s to a z33's so please excuse me if I choose not to share, I haven't even scanned the dyno graph. Other owners I spoke to say that they've had experience with T&R's dyno before and the #'s they got that day are within a 2% range of what they expected and saw before so the dyno wasn't off. Next time there is a dyno event I'll let everyone here know so we can see some more z33 examples.

 

To bring some perspective:

http://www.dragtimes.com/Nissan--350Z-Dyno-Sheets.html
https://my350z.com/forum/vq35hr/4786...tang-dyno.html

I would have to disagree with you about your disagreement that T&R's Dyno is not a low reading dyno. It's either their dyno is low reading, or something was wrong with that Z33, as mentioned in the second link I posted (on of the members had an exhaust leak, and dyno'ed low)

 

then something was wrong with the Z, which seems more logical, though I would love to believe that the T&R dyno is low reading since that would make my number all that more better I think it was the car. Looking at the #'s chart you posted, it looks like not many z33's are breaking 300whp without F.I. I'm sure it can be done but from what I'm reading its still not as efficient. Granted the motor is a few years old and responds well to F.I. I would prefer to enjoy my car N/A before having to go F.I. right now.

Here's a question for you z33 gearheads, what are the stock block limitations with F.I.? I'm asking for "safe" numbers not the 550whp but I'll blow it in 1000 miles.

 

Ok, my misunderstanding. DynoJet's should post a higher number for a HR, but there are a ton of factors that need to be taken in to account, none more important than the running condition of that HR.

 

High compression = low PSI for safe operation, with the stock forged rods but non-forged pistons I'm gonna guess 360-400 whp is a semi-safe range. But I'm just guessing. However people are claiming many miles on a 480 whp stock block setup.

 

high compression is wonderful when you are N/A not so great when you're going F.I. I figure when my Z goes F.I. I'm going to have to do it right and swap out the pistons...

 

I still think you should post your dyno. I don't see what the big deal is. If anything you'd prove that their dyno is putting out normal numbers. And also doesn't matter what type of dyno it is - I've seen numerous Dynojets in different shops have big discrepancies in readouts. Just because it's the same brand, doesn't mean it'll put out the same or even similar numbers.

This thread is more proof why dynos are worthless, imo. Take it to a track, try your best to catch traction, but most importantly look at the trap-speed, then compare and contrast to others.