How to get 300whp+ on a HR
08-27-2010, 02:16 PM
#241
Their 1st Dyno was most definately inflated.. They had me at 314 RWHP. I did some more work and questioned them on the previous results. AKA bitched about the correction they used! I then ended up with 296 RWHP
I will have them boost my car, but I will make sure its all black and white! I will want it all in writing with a deadline/contract. Not interested in having any issues with the distance I have to travel.
If they pulled a "Ronnie" on my car I would go nuclear.
I will have them boost my car, but I will make sure its all black and white! I will want it all in writing with a deadline/contract. Not interested in having any issues with the distance I have to travel.
If they pulled a "Ronnie" on my car I would go nuclear.
Last edited by Lakeside; 08-27-2010 at 02:20 PM.
08-27-2010, 05:26 PM
#244
I hate to burst your bubble but the only way a NA VQ35HR 350Z will break 300hp is if the engine is "built" or you have all upgrades including cams. So if you dyno'd at 294, that dyno was wrong.
The VQ35HR is 306HP stock. You have to minus 15% - 18% for drivetrain loss. This puts it stock at 251 - 260 RWHP. Since this is not a V8, you are not going to gain 60+ rear wheel horse power from an intake, exaust, headers, Pulley, HFC's or Test Pipes.
Sure there are people that say they have hit 320rwhp this way but it's because they believed the dyno was correct when it isn't.
Let me give you an example. I had every single NA upgrade you could do to the HR except cams. I also had it tuned. The upgrade brands I went with were chosen with a lot of research and we ended up with 296RWHP on a DynoDynamics Dynomite dyno. This is a superb and expensive dyno that S&R Performance uses. This was the strongest they had seen an NA VQ35HR do with bolt on's and that's still true today.
After that I wanted to see how different dyno numbers could be so I took the car to Z-Fever the very next day. Come to find out it can very A LOT! Z-Fevers dyno showed me doing 336hp to the rear wheels! I have since been on other "high quality" dyno's and sure enough, 296RWHP is what they always show.
One user in this post put cams in and, if I remember correct, broke barely over 300RWHP which I believe.
If you want bigger power, I would recommend Twin Turbo. You can get a better "dollar per dollar" HP gain going turbo and the HR motor can handle almost 600RWHP and you could at least run 500RWP safely.
The VQ35HR is 306HP stock. You have to minus 15% - 18% for drivetrain loss. This puts it stock at 251 - 260 RWHP. Since this is not a V8, you are not going to gain 60+ rear wheel horse power from an intake, exaust, headers, Pulley, HFC's or Test Pipes.
Sure there are people that say they have hit 320rwhp this way but it's because they believed the dyno was correct when it isn't.
Let me give you an example. I had every single NA upgrade you could do to the HR except cams. I also had it tuned. The upgrade brands I went with were chosen with a lot of research and we ended up with 296RWHP on a DynoDynamics Dynomite dyno. This is a superb and expensive dyno that S&R Performance uses. This was the strongest they had seen an NA VQ35HR do with bolt on's and that's still true today.
After that I wanted to see how different dyno numbers could be so I took the car to Z-Fever the very next day. Come to find out it can very A LOT! Z-Fevers dyno showed me doing 336hp to the rear wheels! I have since been on other "high quality" dyno's and sure enough, 296RWHP is what they always show.
One user in this post put cams in and, if I remember correct, broke barely over 300RWHP which I believe.
If you want bigger power, I would recommend Twin Turbo. You can get a better "dollar per dollar" HP gain going turbo and the HR motor can handle almost 600RWHP and you could at least run 500RWP safely.
only 264whp that is a full bolt on dynotuned DE on their Dyno.
and this is an example another bolt on DE before and After tune, this one was one Mar 04 / 2010 so the temps where better
My Dyno
you can see the gains i got from the tune and I am very close to what i need, the blue was before tune the red is after. when that dyno was done all I had was Greddy Evo 2, Nismo Intakes and testpipes.
ever since then I have installed their Lightweight flywheel, High 5 clutch, and am making a Custom X pipe for the Greddy evo to make it flow better, paired with the long tube headers, clean air filters and a retune, I should be able to reach low 300's but lets not argue lets focus on the gains.
08-29-2010, 12:17 AM
#249
thing about it is im just trying to squeeze as much as I can N/A for a couple years because I do allot of road racing and I just want to be able to push my car to the jagged edge N/A. I don't want to rely on power to get moving like i used to with my old Twin Turbo Z32.
08-30-2010, 07:33 PM
#252
also as far as the intakes go, i will release information when i am ready, im not happy with my current gains from my custom set up. its a little better than stillen but i think i can still do better. so until then it'll be kept under wraps. haha i don't want to **** tease you guys like the intake manifold thread. but believe me when the time comes hopefully within the next month or so. I'll have something for you guys. don't be mad if i don't i have lots of customer cars to take care of before i can work on my own.
05-04-2021, 04:28 PM
#253
Looking back at this thread and i just laugh 😂 because today Hr’s tuned by Admin, RZG, E-Class with 3” intakes, exhaust and test pipes easily breaking 300whp. 3” Adminintakes themselves give you a 15-25whp gain but cannot drive with them installed on a stock tune, you have to get tuned immediately
The following users liked this post:
Ejc_z33 (08-25-2023)
Thread
Thread Starter
Forum
Replies
Last Post
