Notices
Southern California San Diego, Los Angeles, Orange County, Inland Empire, etc.

cosworth plenum question

Old Dec 30, 2008 | 07:55 AM
  #1  
Boneout JZA80's Avatar
Boneout JZA80
Thread Starter
Sponsor
Shine Auto Project
iTrader: (89)
 
Joined: Nov 2004
Posts: 11,517
Likes: 0
From: osaka ~ los angeles[213]
Question cosworth plenum question

I think this piece is pure hotness, anyone know the numbers it puts down for NA as well as FI?

thanks
Reply
Old Dec 30, 2008 | 08:00 AM
  #2  
turismo's Avatar
turismo
Registered User
iTrader: (33)
 
Joined: Aug 2005
Posts: 8,448
Likes: 0
From: curl lookin boy
Default

Originally Posted by Boneout JZA80
I think this piece is pure hotness, anyone know the numbers it puts down for NA as well as FI?

thanks
I have a polished one brand new in the classifieds.

Force induction has seen an increase of 30-40hp in the upper rpms. Not sure of n/a though
Reply
Old Dec 30, 2008 | 08:02 AM
  #3  
Boneout JZA80's Avatar
Boneout JZA80
Thread Starter
Sponsor
Shine Auto Project
iTrader: (89)
 
Joined: Nov 2004
Posts: 11,517
Likes: 0
From: osaka ~ los angeles[213]
Default

Originally Posted by turismo
I have a polished one brand new in the classifieds.

Force induction has seen an increase of 30-40hp in the upper rpms. Not sure of n/a though

thanks for the reply


wow thats hella power
Reply
Old Dec 30, 2008 | 08:10 AM
  #4  
turismo's Avatar
turismo
Registered User
iTrader: (33)
 
Joined: Aug 2005
Posts: 8,448
Likes: 0
From: curl lookin boy
Default

Originally Posted by Boneout JZA80
thanks for the reply


wow thats hella power
no problemo
Reply
Old Dec 30, 2008 | 10:26 AM
  #5  
THE TECH's Avatar
THE TECH
Registered User
iTrader: (154)
 
Joined: Jun 2003
Posts: 10,735
Likes: 0
From: Hills of Anaheim
Default

NA won't show much more if any over the plenum spacers out there now. More bling unless you have big power coming down the road.
Reply
Old Jan 11, 2009 | 06:46 AM
  #6  
13SECZ's Avatar
13SECZ
New Member
iTrader: (4)
 
Joined: Dec 2006
Posts: 560
Likes: 0
From: The Heartbeat...Ct
Default

You say it won't show much power...

Will it however hold the characteristics of the REV up better then the Motordyne stuff...

What I mean is that I get great midrange power with the spacer and lower plenum ....will it keep that but then give me what I lose next to redline right now....?

My power drops off or flattens a bit from 6k and on....where in stock form it didnt...my peak HP was around 6800 stock....

Thanks,
Reply
Old Feb 11, 2009 | 09:09 PM
  #7  
SergEK's Avatar
SergEK
Registered User
 
Joined: Mar 2004
Posts: 785
Likes: 0
From: SoCal
Default

Originally Posted by 13SECZ
You say it won't show much power...

Will it however hold the characteristics of the REV up better then the Motordyne stuff...

What I mean is that I get great midrange power with the spacer and lower plenum ....will it keep that but then give me what I lose next to redline right now....?

My power drops off or flattens a bit from 6k and on....where in stock form it didnt...my peak HP was around 6800 stock....

Thanks,
It gained 12whp untuned on a stock REVUP motor....I think with tuning youll see a little more and it should carry power as far as the cams can support it...which will follow the trace of the stock power but just carry it a little longer.

First and foremost the sources I spoke to inside Cosworth knew that it would require an increased rev limit and tuning to extract the most gains from it because its so different from the stock mani.

When I first learned this back in 07 I was a little sad because at the time tuning wasnt cheap and HKS VPRO was needed (unless you wanted the UTEC hiccups)

Now REVUP guys should start with tuning and work there way forward IMO....OSIRIS is a must even on a stock Z....the stock REVUP tune is very conservative and there are gains to be had even stock...not to mention the fuel savings.

I think OSIRIS, straight pipes, dual 2.75 exhaust are a great bang for your buck...figure 6-700 for a tuned OSIRIS, 250-300 for the straight pipes and 550-600 for the duals...

Either way an extra 500rpm and the proper fuel with the cosworth mani would go a long way for stuff you can slap on a Vq motor without much hassle and extract good gains...people have spent much more than the 999-1100 that this mani costs and havent gained 12whp in some cases....If you can even just hold the power to redline from 6000 rpm to 7500rpm you can see the sizable gains you can make



My car ran super rich (into the 11's) the last time I hit the rollers and I have been dying to test the car as is with just a leaner/more aggressive map with the small mods I have...
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
XM 1
Engine & Drivetrain
29
Jul 10, 2022 07:44 AM
issyz
2003-2009 Nissan 350Z
6
Jul 2, 2017 03:04 PM
Alexreyes
2003-2009 Nissan 350Z
13
Sep 30, 2015 11:30 PM
Conway_160
Drag
3
Sep 29, 2015 08:07 AM


Thread Tools
Search this Thread

All times are GMT -8. The time now is 03:37 PM.