PONTIAC ZONE TECH FORUMS
 

Go Back   PONTIAC ZONE TECH FORUMS >
Engine Tech
> Engine Tech Discussion - Street or Strip
User Name
Password

sponser links

Reply
 
Thread Tools
Old 08-06-13, 08:22PM   #1
Gach
Administrator
 
Gach's Avatar
 
Join Date: May 2003
Location: ....
Posts: 18,508
Default DCI New Ram V head

Very impressive numbers for his street version head, god look at the flow numbers at .650

Quote:
Well in the eleventh hour before Norwalk. I did a quicky port job to one of my ports in my new 5 heads. Keep in mind that this is still my street version of my new head. I used a 2.250 valve with a .91% throat and flowed it on the same 4.200 test fixture. This is only my second attempt with my new head because I have not had the time to devote to it, and there is still allot more left. I only flowed it from .500" and up to get a few numbers because I'm tired and ready to go home. My first attempt with a 2.200 valve the port flowed 420 cfm at .950" of lift(good enough to rival my Tiger heads). This port I just finished with a 2.250 valve flows 440 cfm at the same lift. I think there is a little more left in the combustion chamber because I did little to it. I also think that this port shape wants different valve angles. Keep in mind that this is with a 45 degree seat, and most higher end heads use 50-55 degree seats. Here are the numbers from .500" up.

.500 319
.600 361
.650 391 AWESOME!!!
.700 406
.800 426
.950 440
1.00 451 AWESOME AGAIN!!!


Keep in mind this is my street version of the head and the race version is still to come. Hopefully my new 5 head will raise the bar again!!!


Don Johnston
DCI MOTORSPORTS INC.
330-850-5050 shop
330-628-3354 cell
Designer of the DCI Tiger Heads and the new DCI Ram Air 5 Heads !!!!!
__________________
The things they hide, the way they spin things, the excuses that they make and the things they omit.
Gach is offline   Reply With Quote
Old 08-06-13, 11:55PM   #2
RAIV-Z
Registered User
 
RAIV-Z's Avatar
 
Join Date: Jan 2007
Posts: 291
Default

Very nice quality castings too.
__________________
McCarty/BES Racing Engines/IndyCartel Pontiac 535 EFI RA-V Twin 88M Turbo "Cluster F@#$" Build...
http://forums.maxperformanceinc.com/...668432&page=13



Special thanks to:
Len Caverly Engine Dyno Service
Mike Hall Hallís Custom Race Cars
Don Johnston DCI Motorsports Designer of the NEW DCI Pontiac Ram Air V Heads
RAIV-Z is offline   Reply With Quote
Old 08-07-13, 12:00AM   #3
Gach
Administrator
 
Gach's Avatar
 
Join Date: May 2003
Location: ....
Posts: 18,508
Default

I grab these pictures Silkgoat posted



__________________
The things they hide, the way they spin things, the excuses that they make and the things they omit.
Gach is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
head head Getting more head bryan67gto Engine Tech Discussion - Street or Strip 3 04-11-11 02:32AM
DCI TIGER Head Facts Gach Aftermarket News & Products 43 12-21-10 01:15AM
CV-1 Canted Valve Pontiac Head report: Pontiac Dude Engine Tech Discussion - Street or Strip 5 01-28-09 04:11PM
New Tiger Head Flow Numbers Robert C. Tiger Head 14 12-10-08 10:42PM
Head Gasket Question(s) Rick Engine Tech Discussion - Street or Strip 4 09-24-08 01:06PM


All times are GMT -3. The time now is 04:57PM.

Featured Ads
Ken's Speed & Machine
Mayhem Turbocharging

Carter Cryogenics.  What can we freeze for you?

Pacific Performance Racing

Central Virginia Machine Service.  Home of the Injun Engine!

All Pontiac Engine Kits

Larry's Auto Machine.  Full serivce auto, marine machine shop, domestic and foreign.

Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
2001 - 2007 PontiacZone.com
Page generated in 0.07168 seconds with 19 queries