Full-Race vs. Log Manifold SR20DET Test! - SR20 Forum
Reply
 
Thread Tools
post #1 of 36 (permalink) Old 11-15-2004, 09:51 AM Thread Starter
SE-R Newbie
 
Join Date: May 2002
Location: Tampa, FL
Posts: 100
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
(Thread Starter)
Full-Race vs. Log Manifold SR20DET Test!

We (Myself and Mattback) built a car for a customer that wanted 500whp. Specs are as follows:

CP Pistons 9.0:1 CR
Stock Rods w/ ARP rod bolts
ARP Headstuds
Greddy Headgasket
HKS 264 Step 2's
RAS
Greddy valvesprings
Greddy Intake Manifold
Garrett GT3040R Turbo
ROM tune - Z32 MAF, 96# injectors
JGS Tools Log Manifold
HKS Intercooler

When we took it to the dyno for tuning all we could get out of the car at the wastegate pressure of 12.8 psi (0.9 kg/cm^2) was 300whp. I tried different AFR's and timing values but they yeilded no change. The setup simply would not make more than 300whp @ 12.8 psi. This was a problem becasue I knew that we werent going to get to 500whp without running stupid boost...which i didnt want to do. So after alot of head scratching and a few beers to help cope with the disappointment Matt and I compiled a list of everything that was different between this car and my car when it was running a nearly identical setup and making 340hp @ 10 psi.

This is what we came up with:

1) Log manifold vs. Full Race manifold.

2) ROM tune with MAF vs. Haltech on MAP.

At which point we looked across the garage to my car which is currently out of commission and decided we needed to try swapping manifolds. A call to the customer to discuss the situation...and he agreed it was the correct course of action. So the test was on!!

Matt and I worked dilligently friday night after work to get the manifold swapped over. We used my old downpipe and hot pipe of my car. These pieces were nearly identical to the downpipe and hotpipe that were on with the log...just slightly different fitments. We got it up and running, celebrated at Hooters for a late dinner...then headed off to the dyno on saturday morning. I was expeciting to see gains but we were unsure of how much. On satuday morning we ran the car at wastegate pressure (12.8 psi) and after a bit of tuning to get the new setup dialed in we saw the following gains:




All i can say is WOW...60whp and 35ft-lbs. Spoolup was almost identical with the Full Race hitting maybe 100 rpm later. I was completely floored by the results of this test. I was expecting 30-40hp maybe...but 60hp. I was totally shocked.

I think this also disproves the myth that MAF sensors are a restriction. this car made exactly what my setup made at 12 psi with a MAP sensor based system.

The truth of the matter is the flow properties of the LOG manifold are terrible. The flow from 1,2 and 3,4 directly oppose each other then are forced to do a hard 90 deg turn to enter the turbine housing. A basic understanding of fluid dynamics will tell you this is terrible for flow. The smooth transistions of the full race manifold make all the difference allowing the car to make more power even during spoolup!!

Thumbs up to the guys at Full Race for making such a quality product!!

Oh...and the car did 507whp @ 25 psi later that day!!

SR and KA ECU tuning available e-mail me for details.
http://www.rs-enthalpy.com
[email protected]
AIM - Enthalpy1200
Enthalpy is offline  
Sponsored Links
Advertisement
 
post #2 of 36 (permalink) Old 11-15-2004, 09:57 AM
PLAY MY HEAD, MONKEY!
 
daveracer's Avatar
 
Join Date: May 2003
Location: Shrewsbury, MA
Posts: 9,943
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 93 reviews
Equal length >>>>> LoG!!

.
daveracer is offline  
post #3 of 36 (permalink) Old 11-15-2004, 10:20 AM
BIG-NUTTED Classic
 
Join Date: Jan 2002
Location: ATX
Posts: 1,657
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
Is this RWD SR20 applications only? Time to dump the log...pun intended.


*DONE!*
The Beast.
1fastser is offline  
 
post #4 of 36 (permalink) Old 11-15-2004, 10:35 AM Thread Starter
SE-R Newbie
 
Join Date: May 2002
Location: Tampa, FL
Posts: 100
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
(Thread Starter)
this was RWD..but full race also offers FWD manifolds. I'm sure Javier will be on here shortly to confirm

SR and KA ECU tuning available e-mail me for details.
http://www.rs-enthalpy.com
[email protected]
AIM - Enthalpy1200
Enthalpy is offline  
post #5 of 36 (permalink) Old 11-15-2004, 01:45 PM
BOOSTIN PROTECH STYLE
 
Join Date: Dec 2000
Location: Riverside, CA
Posts: 1,397
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
Pro-Tech makes a true equal length manifold with a merge collector. Our manifold is constructed using Sch 10 1/8th inch thick 304L with 1/2 inch thick stainless flanges for the FWD sr20, and requires no modification to the cooling system with the exception of a recommendation for Flex a lite slim fans. This is a proven manifold being used on several FWD SR20's. www.protech-fabrication.com

Mike Collins


PROTECH FABRICATION

Myspace
"Protech - Making the highest quality products the right way, the first time every time."
PSSSHHHGOESMYSR20 is offline  
post #6 of 36 (permalink) Old 11-15-2004, 05:25 PM
master of nothing
 
Join Date: Mar 2002
Location: no were
Posts: 2,231
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 18 reviews



04 sti fp green 400whp. 93 nx2000.
muleman is offline  
post #7 of 36 (permalink) Old 11-15-2004, 05:36 PM
sleeper
 
Join Date: Mar 2001
Location: Hermosa Beach, CA
Posts: 5,445
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
i always knew they were superior. Just didn't have a magnitude for it.

Khiem
'96 SE-R.... boost, brakes, suspension, etc... sold
'05 Evo
'05 CBR 600RR
spdracerUT is offline  
post #8 of 36 (permalink) Old 11-15-2004, 06:25 PM
meh
 
Join Date: Aug 2002
Location: Tempe, AZ
Posts: 867
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
what does the protech merge collector look like
javierb14 is offline  
post #9 of 36 (permalink) Old 11-15-2004, 06:27 PM
master of nothing
 
Join Date: Mar 2002
Location: no were
Posts: 2,231
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 18 reviews

04 sti fp green 400whp. 93 nx2000.
muleman is offline  
post #10 of 36 (permalink) Old 11-15-2004, 06:29 PM
PLAY MY HEAD, MONKEY!
 
daveracer's Avatar
 
Join Date: May 2003
Location: Shrewsbury, MA
Posts: 9,943
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 93 reviews
Quote:
Originally Posted by muleman

.
daveracer is offline  
post #11 of 36 (permalink) Old 11-15-2004, 06:46 PM
stirring but plain-faced
 
Join Date: Jul 2002
Location: DFW
Posts: 993
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 2 reviews
I would be interested to see a better picture of the pro-tech collector as well. Its hard to tell what it looks like from their website.
NoClassic is offline  
post #12 of 36 (permalink) Old 11-15-2004, 06:47 PM
GT2835R
 
Join Date: Mar 2002
Location: San Diego, CA
Posts: 7,609
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
So whos gonna give me one for my birthday?

Rey Uy
99 SE-Limited
nizzan4u2nv is offline  
post #13 of 36 (permalink) Old 11-15-2004, 06:49 PM
master of nothing
 
Join Date: Mar 2002
Location: no were
Posts: 2,231
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 18 reviews

04 sti fp green 400whp. 93 nx2000.
muleman is offline  
post #14 of 36 (permalink) Old 11-15-2004, 07:07 PM
SE-R Nut
 
Join Date: Jan 2004
Location: Toronto
Posts: 1,103
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 17 reviews
yo that some serious R&D, when i ready to roll with the big boys i know whats up

trini

Car shopping made easy! We do the work for you while you save time, money, and hassles! Visit us at Personal auto brokers.com

Karting Vist............www.Torontokartstands.com
trinispeed is offline  
post #15 of 36 (permalink) Old 11-15-2004, 07:13 PM
master of nothing
 
Join Date: Mar 2002
Location: no were
Posts: 2,231
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 18 reviews
by the way my manifold was done by protech.i also had them jet coat it and upgraded to 316l tubing ;.)

04 sti fp green 400whp. 93 nx2000.
muleman is offline  
post #16 of 36 (permalink) Old 11-15-2004, 07:18 PM
Old School
 
Join Date: May 2003
Location: Manchester/Southington CT
Posts: 369
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Welp, since we are whipping out manifold and merge collector pics I might as well do the same.

We have an equal length, tuned, tubular header that just needs to be dyno tested before the final release also. As we always like to try and be innovative it's something not seen before regarding location. Everything stays in stock locations but you lose the AC and need slim line fans. Whatever.

Here is a pic of the prototype merge collector during construction...I'll post a pic of the header tomorrow, the computer they are on is already turned off for the night.




Jay Hassinger
Häss ProTurbo www.hassturbo.com
Please do not use PM for important
correspondance, or you may not a get a timely reply!
JayHass is offline  
post #17 of 36 (permalink) Old 11-15-2004, 07:46 PM
SE-R Newbie
 
Join Date: Mar 2004
Location: Mexico
Posts: 36
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Thanks a lot for the information, it is very interesting...

www.NipponPower.com.mx
SE-R Classic 93´
Turbo Garret T3/T4 @ 12psi, Custom intercooler, custom manifold, custom intake manifold, 3inch downpipe, 3 inch Magnaflow exhaust, HKS BOV, 300ZX MAF, 50 lbs injectors, Apexi AFC, Walbro fuel pump, Tial Wastegate, Vortech FMU, MM, ACT clutch extreme press plate...

Last edited by Baby Skyline; 11-15-2004 at 07:52 PM.
Baby Skyline is offline  
post #18 of 36 (permalink) Old 11-15-2004, 08:12 PM
EJ25 AWD Monster
 
Join Date: Feb 2002
Location: Florence, KY
Posts: 4,680
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 26 reviews
Jay, thats a pretty piece.

Brian.......
2005 Subie LGT....new toy [email protected] stock. [email protected]' rocks
2007 Forester XT [email protected]
@008 Suzuki Blvd, the cruiser
1964 1/2 mustang coupe, 289 auto For Sale!!!!!!!
TUNED200 is offline  
post #19 of 36 (permalink) Old 11-15-2004, 09:12 PM
The Boost Bear..Rawr!
 
Zexel's Avatar
 
Join Date: Oct 2002
Location: Great state of Oklahoma
Posts: 3,055
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 46 reviews
Those are impressive numbers! Way to go guys. I am also quited surprised that it pumped out another 60+whp. I wouldn't mind an equal length manifold, but my budget just wouldn't allow. Maybe soon.

Corey

Corey Schwab aka "The Boost Bear."
Zexel is offline  
post #20 of 36 (permalink) Old 11-15-2004, 09:42 PM
GTR Driver
 
Join Date: Apr 2004
Location: Shelby Twp, MI
Posts: 104
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
oh my god, those are expensive, that manifold costs more then i paid to get my se-r and get it running
xher0 is offline  
Sponsored Links
Advertisement
 
Reply

  SR20 Forum > Main Forums > Turbo


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome