Single Turbo RX-7's Questions about all aspects of single turbo setups.

wow, ray wilson built and tuned bridge ported t78

Thread Tools
 
Search this Thread
 
Old 08-06-07, 04:44 PM
  #1  
Rotary Enthusiast

Thread Starter
 
fd3virgin's Avatar
 
Join Date: Jun 2002
Location: abingdon, maryland
Posts: 1,447
Likes: 0
Received 0 Likes on 0 Posts
Thumbs up wow, ray wilson built and tuned bridge ported t78

here are the runs at 15 psi and 10 psi. thanks ray
i am selling my front mount greddy two row. make offers. I took my car to summitt point (shenandoh course) for my very first track and had a blast. I was a ***** and ran it at 10 psi.....but i turned up the boost to 15 for the last session. i will try to post a vid soon. kvn
Attached Thumbnails wow,  ray wilson built and tuned bridge ported t78-kevin-15-16psi.jpg   wow,  ray wilson built and tuned bridge ported t78-kevin10psi.jpg   wow,  ray wilson built and tuned bridge ported t78-rxavatar.jpg  
Old 08-06-07, 04:57 PM
  #2  
Rotary Enthusiast

Thread Starter
 
fd3virgin's Avatar
 
Join Date: Jun 2002
Location: abingdon, maryland
Posts: 1,447
Likes: 0
Received 0 Likes on 0 Posts
wheels are for sale too. props to s2ki forum members for letting me use their motor home and tips. kvn
Attached Thumbnails wow,  ray wilson built and tuned bridge ported t78-rx72.jpg   wow,  ray wilson built and tuned bridge ported t78-rxavatar.jpg  
Old 08-06-07, 04:58 PM
  #3  
3rd rotors a charm

iTrader: (4)
 
charlies7's Avatar
 
Join Date: Nov 2003
Location: NW of windy city
Posts: 3,331
Likes: 0
Received 1 Like on 1 Post
full bridge or half?
Old 08-06-07, 05:58 PM
  #4  
spending too much money..

iTrader: (2)
 
hondahater's Avatar
 
Join Date: Dec 2002
Location: louisiana
Posts: 10,117
Likes: 0
Received 1 Like on 1 Post
damn nice numbers. Now you need to either get some c16 or alky injection and turn the boost up!
Old 08-06-07, 11:33 PM
  #5  
Rotor Head Extreme

iTrader: (8)
 
t-von's Avatar
 
Join Date: Apr 2002
Location: Midland Texas
Posts: 6,719
Likes: 0
Received 26 Likes on 17 Posts
Damn I'm more impressed with your numbers at 10psi more than anything. That power band is very nice.
Old 08-07-07, 12:33 AM
  #6  
I can has a Hemi? Yes...

iTrader: (2)
 
Directfreak's Avatar
 
Join Date: Dec 2001
Location: 3OH5
Posts: 9,371
Likes: 0
Received 4 Likes on 3 Posts
Great Numbers, Love the Wheels. Blitz?
Old 08-07-07, 12:41 AM
  #7  
Bann3d. I got OWNED!!!

iTrader: (22)
 
RX7 RAGE's Avatar
 
Join Date: Feb 2001
Location: San Diego, CA
Posts: 5,014
Received 63 Likes on 22 Posts
nice fd
Old 08-07-07, 03:16 AM
  #8  
Just turn up the boost!
iTrader: (1)
 
ZAN_TUNING's Avatar
 
Join Date: Jul 2007
Location: HELL
Posts: 662
Likes: 0
Received 0 Likes on 0 Posts
seriously, 400rwhp@10psi on the greddy t78 is flippin great!
Old 08-07-07, 06:26 AM
  #9  
Living life 9 seconds at a time

iTrader: (2)
 
ErnieT's Avatar
 
Join Date: Feb 2001
Location: Abingdon, Md
Posts: 6,541
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by charlies7
full bridge or half?
Full bridge. And congrats Kevin!
Old 08-07-07, 09:43 AM
  #10  
Rotary Enthusiast

Thread Starter
 
fd3virgin's Avatar
 
Join Date: Jun 2002
Location: abingdon, maryland
Posts: 1,447
Likes: 0
Received 0 Likes on 0 Posts
thanks ernie, now i need 400rwhp more to have what you have. lol kvn
Old 08-07-07, 04:02 PM
  #11  
Rotary Enthusiast

Thread Starter
 
fd3virgin's Avatar
 
Join Date: Jun 2002
Location: abingdon, maryland
Posts: 1,447
Likes: 0
Received 0 Likes on 0 Posts
found an action shot on s2ki
Attached Thumbnails wow,  ray wilson built and tuned bridge ported t78-trackday.jpg  
Old 08-07-07, 05:44 PM
  #12  
Chasing numbers

iTrader: (5)
 
sk8world's Avatar
 
Join Date: Apr 2001
Location: Alabama
Posts: 5,097
Likes: 0
Received 4 Likes on 3 Posts
Is Ray making these kind of numbers on other shop built motors or just his? I have scene many great looking dyno sheets from him but they are all hisa builds. Wondering if he will be able to this on others. Not knocking him but wondering if he has it down packed for a certain port job/timing map he is running..?? I could be way off here but I have been wanting to take my car to him..
Old 08-07-07, 08:17 PM
  #13  
Banned. I got OWNED!!!
 
RICE RACING's Avatar
 
Join Date: Mar 2001
Location: lebanon
Posts: 2,306
Likes: 0
Received 1 Like on 1 Post
I like your numbers and again congrats that woluld feel very quick !!!

On topic of if bridging is worth it, i honestly do not know? i will figure out how to post up my autronic data log to back up my dyno that i will also post for you to compare but in summary this is it.

At 7500rpm i made 472+rwhp on a peak boost of 19psi v's your 17.5 (peak tq) and 17psi v's your 15.6 (peak power) (map ploted on ECU loging), 40 deg C air temp after IC on pump fuel with TO4S turbo (58mm comp wheel) smaller turbine wheel (P trim) than T78 greddy and on a street port and this was done on a dynapack chassis dyno which is accepted to give lower reading than the dyno jet *my boost is also run at 610m above sea level, so at lower altitude could use less to obtain same power*

I did two runs back to back on same graph that were within 1.5% of each other in power and tq.

I only share this with everyone because it seems very much that to me the bridging be it partial or full is not realy worth it at all in power terms? it will give some more range in rpm it seems but little else?
Old 08-07-07, 08:19 PM
  #14  
Living life 9 seconds at a time

iTrader: (2)
 
ErnieT's Avatar
 
Join Date: Feb 2001
Location: Abingdon, Md
Posts: 6,541
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by sk8world
Is Ray making these kind of numbers on other shop built motors or just his? I have scene many great looking dyno sheets from him but they are all hisa builds. Wondering if he will be able to this on others. Not knocking him but wondering if he has it down packed for a certain port job/timing map he is running..?? I could be way off here but I have been wanting to take my car to him..
If somebody else builds the engine, the clearances, and porting, materials used will all be different. So if the power is less, this would be why. Kinda self explanitory.
Old 08-07-07, 08:23 PM
  #15  
Living life 9 seconds at a time

iTrader: (2)
 
ErnieT's Avatar
 
Join Date: Feb 2001
Location: Abingdon, Md
Posts: 6,541
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by RICE RACING

I only share this with everyone because it seems very much that to me the bridging be it partial or full is not realy worth it at all in power terms? it will give some more range in rpm it seems but little else?

Rice, I have to disagree. Ray has done about 7-10 bridgeports now. And the only thing that was changed was porting. Turbo, ems, etc...was all the same and they all have made an average of 60 more rwhp or more at the same boost level and the power band is dramatically broader.
Old 08-07-07, 08:39 PM
  #16  
Banned. I got OWNED!!!
 
RICE RACING's Avatar
 
Join Date: Mar 2001
Location: lebanon
Posts: 2,306
Likes: 0
Received 1 Like on 1 Post
Originally Posted by ErnieT
Rice, I have to disagree. Ray has done about 7-10 bridgeports now. And the only thing that was changed was porting. Turbo, ems, etc...was all the same and they all have made an average of 60 more rwhp or more at the same boost level and the power band is dramatically broader.

makes sense, you realy have to compare an apple to an apple
Old 08-07-07, 08:48 PM
  #17  
One Luv "Till The End"

iTrader: (33)
 
teddyrx2's Avatar
 
Join Date: Mar 2006
Location: san diego
Posts: 13,757
Likes: 0
Received 0 Likes on 0 Posts
i love it made props. So your selling your front mount now what are you going with?
Old 08-08-07, 03:19 AM
  #18  
'Tuna'

 
crispeed's Avatar
 
Join Date: Feb 2001
Location: Miami,Fl,USA
Posts: 4,637
Likes: 0
Received 3 Likes on 3 Posts
Originally Posted by ErnieT
they all have made an average of 60 more rwhp or more at the same boost level and the power band is dramatically broader.
That's right about the same I've seen also. Now when you take it a litte further with a custom intake manifold and a turbo to suit high boost/power then the power is even greater.
Old 08-08-07, 06:07 AM
  #19  
Rotary Enthusiast

Thread Starter
 
fd3virgin's Avatar
 
Join Date: Jun 2002
Location: abingdon, maryland
Posts: 1,447
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by teddyrx2
i love it made props. So your selling your front mount now what are you going with?
i am thinking of a v-mount set-up so that the car won't get so damn hot during track days. the rad is completely blocked off by the fmic. kvn
Old 08-08-07, 06:08 AM
  #20  
Rotary Enthusiast

Thread Starter
 
fd3virgin's Avatar
 
Join Date: Jun 2002
Location: abingdon, maryland
Posts: 1,447
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by ErnieT
Rice, I have to disagree. Ray has done about 7-10 bridgeports now. And the only thing that was changed was porting. Turbo, ems, etc...was all the same and they all have made an average of 60 more rwhp or more at the same boost level and the power band is dramatically broader.
ernie is right, all he did was change the ports. I did pick up close to 60+ rwhp across the board almost. kvn
Old 08-08-07, 09:02 AM
  #21  
Banned. I got OWNED!!!
 
RICE RACING's Avatar
 
Join Date: Mar 2001
Location: lebanon
Posts: 2,306
Likes: 0
Received 1 Like on 1 Post
Originally Posted by fd3virgin
ernie is right, all he did was change the ports. I did pick up close to 60+ rwhp across the board almost. kvn

unreal

I been fighting the urge to do this to my own car, but will have to give in I think
Old 08-08-07, 09:10 AM
  #22  
Racing Rotary Since 1983

iTrader: (6)
 
Howard Coleman's Avatar
 
Join Date: Oct 2001
Location: Hiawassee, Georgia
Posts: 6,097
Received 520 Likes on 290 Posts
for sure something is setting Ray's product apart from the pack.... generally it is the totality of all the details lined up properly but perhaps a significant portion of the net is his BPs...

i can see a run on carbide burrs

hc
Old 08-08-07, 09:30 AM
  #23  
spending too much money..

iTrader: (2)
 
hondahater's Avatar
 
Join Date: Dec 2002
Location: louisiana
Posts: 10,117
Likes: 0
Received 1 Like on 1 Post
Originally Posted by RICE RACING
unreal

I been fighting the urge to do this to my own car, but will have to give in I think
I could have sworn you where always advocating bridge ports???? Maybe I'm just confused.
Old 08-08-07, 10:03 AM
  #24  
Crash Auto?Fix Auto.

iTrader: (3)
 
classicauto's Avatar
 
Join Date: May 2003
Location: Hagersville Ontario
Posts: 7,831
Likes: 0
Received 2 Likes on 2 Posts
200hp by 4200rpm

Nice
Old 08-08-07, 10:38 AM
  #25  
The one
iTrader: (5)
 
Jason's Avatar
 
Join Date: Jul 2001
Location: Fort Worth, TX
Posts: 3,862
Likes: 0
Received 4 Likes on 4 Posts
Just so people know Ray uses STD dyno numbers. That is about 15-20 RWHP more than an SAE number. Its still a good number but inflated a little. Most shops use SAE.

Jason


Quick Reply: wow, ray wilson built and tuned bridge ported t78



All times are GMT -5. The time now is 02:29 PM.