Safe rev limit for 35HR and 37HR
11-02-2008, 09:26 AM
#1
Registered User
Thread Starter
Join Date: May 2008
Location: Mohegan Lake, NY
Posts: 196
Likes: 0
Received 0 Likes
on
0 Posts
Safe rev limit for 35HR and 37HR
i did a search and nothing popped up as far as i could see. maybe i used the wrong criteria, but anyhow i would like to know a safe rev limit for the HR engines.
can the stock internals in the 35HR and 37HR take 8,000rpms?
ive seen some people on here with I/HFC/catback and tune making 310whp+ on the HR's and i just wanted to know if the higher redline was possible so i could take advantage of the extra 500rpms from headers, and cams. main reason being for FI.
can the stock internals in the 35HR and 37HR take 8,000rpms?
ive seen some people on here with I/HFC/catback and tune making 310whp+ on the HR's and i just wanted to know if the higher redline was possible so i could take advantage of the extra 500rpms from headers, and cams. main reason being for FI.
Last edited by supergoji; 11-02-2008 at 01:34 PM.
11-02-2008, 09:34 AM
#2
If you read around you will see cams for the hr are really not worth it as of yet. The HR is a finally tuned machine and not much else really needs to be done to squeeze that horse power out of it. Arsh with headers, test pipes, exhaust and intakes, along with his tune has made great horse power. No cams needed. Talk to him or read his post which is full of information.
11-02-2008, 09:58 AM
#3
Are you a politician? Thats not even what he asked. Cams arent worth it? How many HR's out there even have changed their cams yet? Keep the **** in your ***, we dont need you to pull it out for us. Anyway Goji, not much has been done with the HR yet besides bolt ons, only this past summer have we started to see the twin turbo kits.
11-02-2008, 12:08 PM
#4
As you can see here this is Arsh dyno (I hope he is ok with this) the power start to drop after 7000 rpm although his car is full bolt on except cams.
I don't think it will damage your engine if you use it just in the track.
So will you gain anything? I don't think so..
will it help you? yea.. when you shift, the rpm will drop right to your peak power.
I hope this will help you.
I don't think it will damage your engine if you use it just in the track.
So will you gain anything? I don't think so..
will it help you? yea.. when you shift, the rpm will drop right to your peak power.
I hope this will help you.
11-02-2008, 01:05 PM
#5
Registered User
iTrader: (1)
Join Date: Dec 2004
Location: Scottsdale, AZ
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
8000 rpms isnt out of the question. Technosquare's reflash bumps redline up to 8000. This would be benificial if you decide to install headers and cams.
As of right now there aren't any cams that I've seen. I read in a magazine a few months back (in the new parts section that seems to be in every magazine) that Greddy has developed cams for the HR. It isn't posted on their site so Im not 100% sure that it was correct in the magazine.
Even if it is legit, Greddy filed Chapter 11 so who knows if they are going to continue product development for the HR.
In either case, like most aftermarket cams, you're most likely going to sacrifice some bottom end power to make it up at the top end. A higher rev limiter with headers would help add to that top end power.
As of right now there aren't any cams that I've seen. I read in a magazine a few months back (in the new parts section that seems to be in every magazine) that Greddy has developed cams for the HR. It isn't posted on their site so Im not 100% sure that it was correct in the magazine.
Even if it is legit, Greddy filed Chapter 11 so who knows if they are going to continue product development for the HR.
In either case, like most aftermarket cams, you're most likely going to sacrifice some bottom end power to make it up at the top end. A higher rev limiter with headers would help add to that top end power.
11-02-2008, 01:08 PM
#6
New Member
Join Date: Feb 2008
Location: Hell, AZ
Posts: 158
Likes: 0
Received 0 Likes
on
0 Posts
8000 rpms isnt out of the question. Technosquare's reflash bumps redline up to 8000. This would be benificial if you decide to install headers and cams.
As of right now there aren't any cams that I've seen. I read in a magazine a few months back (in the new parts section that seems to be in every magazine) that Greddy has developed cams for the HR. It isn't posted on their site so Im not 100% sure that it was correct in the magazine.
Even if it is legit, Greddy filed Chapter 11 so who knows if they are going to continue product development for the HR.
In either case, like most aftermarket cams, you're most likely going to sacrifice some bottom end power to make it up at the top end. A higher rev limiter with headers would help add to that top end power.
As of right now there aren't any cams that I've seen. I read in a magazine a few months back (in the new parts section that seems to be in every magazine) that Greddy has developed cams for the HR. It isn't posted on their site so Im not 100% sure that it was correct in the magazine.
Even if it is legit, Greddy filed Chapter 11 so who knows if they are going to continue product development for the HR.
In either case, like most aftermarket cams, you're most likely going to sacrifice some bottom end power to make it up at the top end. A higher rev limiter with headers would help add to that top end power.
Trending Topics
11-02-2008, 04:29 PM
#8
Registered User
Thread Starter
Join Date: May 2008
Location: Mohegan Lake, NY
Posts: 196
Likes: 0
Received 0 Likes
on
0 Posts
As you can see here this is Arsh dyno (I hope he is ok with this) the power start to drop after 7000 rpm although his car is full bolt on except cams.
I don't think it will damage your engine if you use it just in the track.
So will you gain anything? I don't think so..
will it help you? yea.. when you shift, the rpm will drop right to your peak power.
I hope this will help you.
I don't think it will damage your engine if you use it just in the track.
So will you gain anything? I don't think so..
will it help you? yea.. when you shift, the rpm will drop right to your peak power.
I hope this will help you.
.
11-02-2008, 08:31 PM
#11
Registered User
Join Date: Jul 2008
Location: Los Angeles, Ca
Posts: 658
Likes: 0
Received 0 Likes
on
0 Posts
11-03-2008, 06:49 AM
#13
Registered User
Thread Starter
Join Date: May 2008
Location: Mohegan Lake, NY
Posts: 196
Likes: 0
Received 0 Likes
on
0 Posts
se let me get this straight.
for 3 grand you get, injen or stillen's new long tube intake.
reflash, headers and cams and 345whp+- if tuned correctly.
all motor. not bad.
not to mention all the other goodies, lightweight flywheel, lightweight driveshaft, underdrive pulley, 4.083 gearing (which im used to in my Z32 right now, and i'll be doing high compression turbo on sooooon)
for 3 grand you get, injen or stillen's new long tube intake.
reflash, headers and cams and 345whp+- if tuned correctly.
all motor. not bad.
not to mention all the other goodies, lightweight flywheel, lightweight driveshaft, underdrive pulley, 4.083 gearing (which im used to in my Z32 right now, and i'll be doing high compression turbo on sooooon)
11-05-2008, 04:29 PM
#14
se let me get this straight.
for 3 grand you get, injen or stillen's new long tube intake.
reflash, headers and cams and 345whp+- if tuned correctly.
all motor. not bad.
not to mention all the other goodies, lightweight flywheel, lightweight driveshaft, underdrive pulley, 4.083 gearing (which im used to in my Z32 right now, and i'll be doing high compression turbo on sooooon)
for 3 grand you get, injen or stillen's new long tube intake.
reflash, headers and cams and 345whp+- if tuned correctly.
all motor. not bad.
not to mention all the other goodies, lightweight flywheel, lightweight driveshaft, underdrive pulley, 4.083 gearing (which im used to in my Z32 right now, and i'll be doing high compression turbo on sooooon)
TK
11-06-2008, 07:29 AM
#16
Registered User
Thread Starter
Join Date: May 2008
Location: Mohegan Lake, NY
Posts: 196
Likes: 0
Received 0 Likes
on
0 Posts
If someone makes those numbers with cams, i wont be pulling numbers out of my *** now will I? 
i saw a few dynos of G37's making 330whp with those mods, so cams should add at least another 15hp.
dont you think that is a little logical in the least?
i mean most people who put cams in their car for more power tend to get at least that much out of them.
i saw a few dynos of G37's making 330whp with those mods, so cams should add at least another 15hp.
dont you think that is a little logical in the least?
i mean most people who put cams in their car for more power tend to get at least that much out of them.
Last edited by supergoji; 11-06-2008 at 07:32 AM.
11-06-2008, 04:06 PM
#17
If someone makes those numbers with cams, i wont be pulling numbers out of my *** now will I?
i saw a few dynos of G37's making 330whp with those mods, so cams should add at least another 15hp.
dont you think that is a little logical in the least?
i mean most people who put cams in their car for more power tend to get at least that much out of them.
i saw a few dynos of G37's making 330whp with those mods, so cams should add at least another 15hp.
dont you think that is a little logical in the least?
i mean most people who put cams in their car for more power tend to get at least that much out of them.
Really, the VQ35HR and the 37VHR shouldn't even be in the same discussion in terms of bolt-on power and rev capacity. Two very different engines.
Will
Thread
Thread Starter
Forum
Replies
Last Post
Colombo
Forced Induction
35
11-09-2020 10:27 AM
FromGtoZ
Intake Exhaust
2
09-20-2015 03:41 PM
