Notices
Series I Major Horsepower Upgrades This is the place to discuss Super Chargers and Turbos, Nitrous, Porting, etc

Bridgeported engine results

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 07-10-2011, 12:21 PM
  #51  
BDC
BDC Motorsports
 
BDC's Avatar
 
Join Date: Nov 2006
Location: Dallas, Tx
Posts: 417
Likes: 0
Received 1 Like on 1 Post
More notes on the bridgeport... it's inducing about 35* or so of overlap with the methodology I've developed where the cuts are on the 3rd and 4th intake ports. This is only a partial bridgeport. I've not done a full bridgeport with cuts on the center iron primary ports alone or in tandem with the 3rd/4th ports. We're still looking to nail down more time on the dyno and hunt for better power/torque curves with the LIM's valves' manipulation. Haven't done that. Just need more time with it still.

B
Old 07-10-2011, 01:29 PM
  #52  
Drummond Built
iTrader: (6)
 
WTBRotary!'s Avatar
 
Join Date: Aug 2008
Location: DFW, Texas
Posts: 3,703
Likes: 0
Received 0 Likes on 0 Posts
Subscribed... Good read... I love to learn too...
Old 07-10-2011, 02:19 PM
  #53  
Gold Wheels FTW
iTrader: (1)
 
reddozen's Avatar
 
Join Date: Nov 2007
Posts: 1,116
Received 49 Likes on 35 Posts
Originally Posted by BDC
... but that's not fun, B.
Very true... typically I get around 200 Miles to a tank cause i can't keep my foot out of it.
Old 07-10-2011, 02:30 PM
  #54  
Rotor User
 
fastlaneracing's Avatar
 
Join Date: Nov 2007
Location: Sweden
Posts: 838
Likes: 0
Received 0 Likes on 0 Posts
Interesting thread, threads like this make it worth spending time here.

Keep up the good work!
Old 07-10-2011, 04:04 PM
  #55  
Registered
Thread Starter
 
EricMeyer's Avatar
 
Join Date: Oct 2007
Location: Indianapolis, IN
Posts: 684
Likes: 0
Received 11 Likes on 10 Posts
Originally Posted by reddozen
Very true... typically I get around 200 Miles to a tank cause i can't keep my foot out of it.

FYI: I get about 70 minutes on a good day. LOL
Old 07-10-2011, 04:07 PM
  #56  
Registered
 
PhillipM's Avatar
 
Join Date: Dec 2007
Location: UK
Posts: 863
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by EricMeyer
FYI: I get about 70 minutes on a good day. LOL
Might get a whole 25 minutes if we fuel her to the brim for a long, slow stage

More like 10-12 minutes usually
Old 07-11-2011, 09:10 AM
  #57  
Registered
iTrader: (3)
 
olddragger's Avatar
 
Join Date: Apr 2004
Location: macon, georgia
Posts: 10,828
Likes: 0
Received 38 Likes on 27 Posts
I think I would just love to hear the idle. I miss the big block with high lift cams lope. It reminds me of that an its even better!
Old 07-11-2011, 09:21 AM
  #58  
Gold Wheels FTW
iTrader: (1)
 
reddozen's Avatar
 
Join Date: Nov 2007
Posts: 1,116
Received 49 Likes on 35 Posts
Originally Posted by olddragger
I think I would just love to hear the idle. I miss the big block with high lift cams lope. It reminds me of that an its even better!
Once we tuned the idle, It didn't really brap any more sadly. It kinda lumps every now and then, but it's not consistent or very audible. Nothing like some of Brian's 13bs in the RX7s where it's really prominent.

Eric,
My fiancee would castrate me if I only got 70 minutes out of a tank... lol, But yea, I understand that's WOT.

I posted a you tube vid of the idle before we tuned it...
http://www.youtube.com/watch?v=C-WkRBKpqIE
Old 07-11-2011, 12:51 PM
  #59  
Registered User
 
mitsokid's Avatar
 
Join Date: Jul 2011
Posts: 22
Likes: 0
Received 0 Likes on 0 Posts
subscribed, lots o good info on here
Old 07-13-2011, 07:27 PM
  #60  
BDC
BDC Motorsports
 
BDC's Avatar
 
Join Date: Nov 2006
Location: Dallas, Tx
Posts: 417
Likes: 0
Received 1 Like on 1 Post
Originally Posted by olddragger
I think I would just love to hear the idle. I miss the big block with high lift cams lope. It reminds me of that an its even better!
It's pretty muddled. There's not much to it like on the older motors. Those are particularly harsh and brappy; the Renesis ones aren't.
Old 07-13-2011, 07:53 PM
  #61  
No respecter of malarkey
iTrader: (25)
 
TeamRX8's Avatar
 
Join Date: Apr 2005
Posts: 26,719
Received 2,006 Likes on 1,635 Posts
no surprise considering how small it is in comparison
Old 07-13-2011, 11:10 PM
  #62  
So this Rotary thing...?
 
azzuro's Avatar
 
Join Date: Nov 2009
Location: Sherwood Park, AB
Posts: 424
Likes: 0
Received 0 Likes on 0 Posts
subscribed for good discussion.
Old 07-14-2011, 06:55 PM
  #63  
Life begins @ 30 psi
 
blackenedwings's Avatar
 
Join Date: Mar 2008
Location: Columbia, MD
Posts: 1,745
Likes: 0
Received 0 Likes on 0 Posts
Great thread, I'm not surprised at all to see these gains on the Renesis having had several long talks with Brian when I was having him build my motor. I ended up selling the motor to a customer of his, but its awesome to see Eric working with him and the results. Keep up the good work guys.
Old 07-15-2011, 04:14 PM
  #64  
Day-it-T
iTrader: (1)
 
Daeity's Avatar
 
Join Date: Jun 2011
Posts: 235
Likes: 0
Received 0 Likes on 0 Posts
wow well this is a great starting point in power performance for me...scribed
Old 08-01-2011, 08:38 PM
  #65  
Registered
iTrader: (2)
 
moeswrx's Avatar
 
Join Date: Aug 2010
Posts: 53
Likes: 0
Received 0 Likes on 0 Posts
subscribe me in!
Old 08-01-2011, 09:03 PM
  #66  
Registered
 
Rote8's Avatar
 
Join Date: Oct 2007
Location: Boosted...
Posts: 1,574
Likes: 0
Received 2 Likes on 2 Posts
Originally Posted by olddragger
I think I would just love to hear the idle. I miss the big block with high lift cams lope. It reminds me of that an its even better!

I don't know, a big block with a high lift cam (or an LS1) might fit in an 8.




It might use less radiator too
Old 08-01-2011, 09:12 PM
  #67  
Boosted Kiwi
iTrader: (2)
 
Brettus's Avatar
 
Join Date: Apr 2006
Location: Y-cat-o NZ
Posts: 20,523
Received 1,490 Likes on 839 Posts
Originally Posted by reddozen
Once we tuned the idle, It didn't really brap any more sadly. It kinda lumps every now and then, but it's not consistent or very audible. Nothing like some of Brian's 13bs in the RX7s where it's really prominent.

Eric,
My fiancee would castrate me if I only got 70 minutes out of a tank... lol, But yea, I understand that's WOT.

I posted a you tube vid of the idle before we tuned it...
http://www.youtube.com/watch?v=C-WkRBKpqIE
Why not 'untune' it and get that brap back ?
Old 08-02-2011, 12:12 PM
  #68  
Gold Wheels FTW
iTrader: (1)
 
reddozen's Avatar
 
Join Date: Nov 2007
Posts: 1,116
Received 49 Likes on 35 Posts
Originally Posted by Brettus
Why not 'untune' it and get that brap back ?
I'd rather it run correctly than poorly for the sake of sound. I want it to last as long as possible.
Old 08-02-2011, 06:11 PM
  #69  
Registered
 
Rote8's Avatar
 
Join Date: Oct 2007
Location: Boosted...
Posts: 1,574
Likes: 0
Received 2 Likes on 2 Posts
Originally Posted by reddozen
I'd rather it run correctly than poorly for the sake of sound. I want it to last as long as possible.

Turbo or blower I don't care, but put some boost to that puppy.
Old 08-02-2011, 08:45 PM
  #70  
No respecter of malarkey
iTrader: (25)
 
TeamRX8's Avatar
 
Join Date: Apr 2005
Posts: 26,719
Received 2,006 Likes on 1,635 Posts
Originally Posted by reddozen
I'd rather it run correctly than poorly for the sake of sound. I want it to last as long as possible.
Is that your excuse for not running a dyno yet too?
Old 08-03-2011, 08:21 AM
  #71  
Gold Wheels FTW
iTrader: (1)
 
reddozen's Avatar
 
Join Date: Nov 2007
Posts: 1,116
Received 49 Likes on 35 Posts
Originally Posted by TeamRX8
Is that your excuse for not running a dyno yet too?
Nope, Don't have $100 to blow, and there's an issue with my clutch. So I won't have the opportunity to dyno it till after my wedding in September, and I get my clutch issues resolved. Will happen eventually, but it's not a priority right now.

I'm sure my results will be similar to Eric's due to the fact that it's the exact same port work, but most likely a slightly lower total power due to me being less experienced at tuning, and not having access to racing quality setups (long header manifold, etc). We'll just have to see cause I'm sure the dyno will report a little differently too. We have a dyno-jet here locally.

Rote8,
I'm hoping to do something about that by next summer. We'll see how things go. I have to come up with more disposable income first. We have to buy a house by next spring, so that eats into any potential spending money I may have, and I'd really like to get my RX7 up and running again. I'm about $3k shy having everything I need to put my 20b together for the FC. In the end, the RX8 is still the daily... But I've seriously considered it.

Last edited by reddozen; 08-03-2011 at 08:24 AM.
Old 08-03-2011, 09:10 PM
  #72  
Registered
 
Rote8's Avatar
 
Join Date: Oct 2007
Location: Boosted...
Posts: 1,574
Likes: 0
Received 2 Likes on 2 Posts
Originally Posted by reddozen
Nope, Don't have $100 to blow, and there's an issue with my clutch. So I won't have the opportunity to dyno it till after my wedding in September, and I get my clutch issues resolved. Will happen eventually, but it's not a priority right now.

I'm sure my results will be similar to Eric's due to the fact that it's the exact same port work, but most likely a slightly lower total power due to me being less experienced at tuning, and not having access to racing quality setups (long header manifold, etc). We'll just have to see cause I'm sure the dyno will report a little differently too. We have a dyno-jet here locally.

Rote8,
I'm hoping to do something about that by next summer. We'll see how things go. I have to come up with more disposable income first. We have to buy a house by next spring, so that eats into any potential spending money I may have, and I'd really like to get my RX7 up and running again. I'm about $3k shy having everything I need to put my 20b together for the FC. In the end, the RX8 is still the daily... But I've seriously considered it.
It would be awesome to see a solid 500RWHP from a Renesis
Old 08-14-2011, 06:59 AM
  #73  
Rotor User
 
fastlaneracing's Avatar
 
Join Date: Nov 2007
Location: Sweden
Posts: 838
Likes: 0
Received 0 Likes on 0 Posts
Any updates?
Old 08-29-2011, 12:44 PM
  #74  
Registered User
 
gtballa14's Avatar
 
Join Date: Feb 2008
Location: Orlando, FL
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
^^^^^???
Old 09-08-2011, 09:51 AM
  #75  
Day-it-T
iTrader: (1)
 
Daeity's Avatar
 
Join Date: Jun 2011
Posts: 235
Likes: 0
Received 0 Likes on 0 Posts
updates.........


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Bridgeported engine results



All times are GMT -5. The time now is 08:54 PM.