Notices
RX-8 Racing Want to discuss autocrossing, road-racing and drag racing the RX-8? Bring it here. This is NOT a kills/street racing forum.

Modified Mag RX-8 project car -- STX here I come!

Thread Tools
 
Rate Thread
 
Old Aug 16, 2010 | 02:11 PM
  #126  
Charles R. Hill's Avatar
Owner of BHR
iTrader: (7)
 
Joined: Nov 2003
Posts: 4,101
Likes: 45
Originally Posted by TeamRX8
Gotta at least appreciate n00bs for teh enthusiasm ....
He has no idea how lucky he is right now.
Reply
Old Aug 16, 2010 | 02:30 PM
  #127  
8upbad's Avatar
Jared
iTrader: (3)
 
Joined: Jul 2009
Posts: 777
Likes: 1
From: South Florida
Originally Posted by alnielsen
You may make that much power for a couple of dyno runs, but that would also be rare and unstable for an FD. A streetable FD will come in around 450 to 500 hp tops.
Interesting. That gives me a little more hope for our motors.
Reply
Old Aug 17, 2010 | 01:23 AM
  #128  
ilikecars's Avatar
Registered
 
Joined: Mar 2010
Posts: 44
Likes: 1
From: SE Michigan
for most applications, anything over 600 hp in unusable, FOR THE MOST PART. that much hp can obviously be utilized but it takes lots of time, work, and money.
Reply
Old Aug 17, 2010 | 06:29 AM
  #129  
Spook_rx8_2007's Avatar
Registered
 
Joined: Mar 2009
Posts: 30
Likes: 0
Originally Posted by 8upbad
Hell yeah. I love a good swap but I was really sad when I bought this car and found that 400 hp was rare and unstable for the renesis. I always read about FD's making 850 hp.... I know our 8 is not a corvette but damn. I saw the Emersil turbo that someone got 500 with... But seriously, we need to make the Renesis a real competitor or keep waiting for the 16x
hell yea... i waiting to buy it when i get back from overseas..... just had my tranmission redone, new clutch and gaskets bearing and syncros all done by 30,000 miles
Reply
Old Aug 17, 2010 | 11:02 AM
  #130  
Charles R. Hill's Avatar
Owner of BHR
iTrader: (7)
 
Joined: Nov 2003
Posts: 4,101
Likes: 45
Originally Posted by ilikecars
for most applications, anything over 600 hp in unusable, FOR THE MOST PART. that much hp can obviously be utilized but it takes lots of time, work, and money.
New tranny.
New driveshaft.
New PPF.
New rear suspension links.
New rear axles.
New differential.

And that is just the driveline/suspension............
Reply
Old Aug 17, 2010 | 01:26 PM
  #131  
Modified Dave's Avatar
Thread Starter
98% chimp
 
Joined: Dec 2009
Posts: 116
Likes: 0
Originally Posted by Charles R. Hill
New tranny.
New driveshaft.
New PPF.
New rear suspension links.
New rear axles.
New differential.

And that is just the driveline/suspension............
Charles, what do you consider the safe power limit of the Renesis with forced induction (I'm thinking about a custom Rotrex supercharger install) if you want to run pump gas and maintain good daily drivability/reliability but also lay a beating on it at the track from time to time?
Reply
Old Aug 17, 2010 | 02:46 PM
  #132  
RotaryMachineRx's Avatar
SPOOLN8
iTrader: (1)
 
Joined: Nov 2008
Posts: 2,300
Likes: 245
From: Edmonton, Alberta, Canada
Originally Posted by Modified Dave
Charles, what do you consider the safe power limit of the Renesis with forced induction (I'm thinking about a custom Rotrex supercharger install) if you want to run pump gas and maintain good daily drivability/reliability but also lay a beating on it at the track from time to time?

I'm gonna throw a 300-400 whp out there... 400 being on the high end as it is not common at all to see and I personally haven't seen a S/C do that yet... I'd say 310 - 330 at the wheels is where you see many people able to sit comfortably.
Reply
Old Aug 17, 2010 | 06:57 PM
  #133  
Charles R. Hill's Avatar
Owner of BHR
iTrader: (7)
 
Joined: Nov 2003
Posts: 4,101
Likes: 45
Originally Posted by Modified Dave
Charles, what do you consider the safe power limit of the Renesis with forced induction (I'm thinking about a custom Rotrex supercharger install) if you want to run pump gas and maintain good daily drivability/reliability but also lay a beating on it at the track from time to time?
Do you still have my cell number?
Reply
Old Aug 17, 2010 | 06:59 PM
  #134  
Charles R. Hill's Avatar
Owner of BHR
iTrader: (7)
 
Joined: Nov 2003
Posts: 4,101
Likes: 45
Originally Posted by RotaryMachineRx
I'm gonna throw a 300-400 whp out there... 400 being on the high end as it is not common at all to see and I personally haven't seen a S/C do that yet... I'd say 310 - 330 at the wheels is where you see many people able to sit comfortably.
Based on mere statistics? There are SO many variables involved and so few F/I'd Renesis engines, relatively speaking, that mere statistics will not suffice. Not IMO, anyway.
Reply
Old Aug 17, 2010 | 07:00 PM
  #135  
Easy_E1's Avatar
Registered
iTrader: (2)
 
Joined: Sep 2005
Posts: 7,675
Likes: 5
From: Bellevue WA
Originally Posted by Charles R. Hill
Do you still have my cell number?
Yes.


Reply
Old Aug 17, 2010 | 07:04 PM
  #136  
TeamRX8's Avatar
Registered
iTrader: (25)
 
Joined: Apr 2005
Posts: 26,936
Likes: 2,141
n00bs will be n00bs .....
Reply
Old Aug 17, 2010 | 07:06 PM
  #137  
Easy_E1's Avatar
Registered
iTrader: (2)
 
Joined: Sep 2005
Posts: 7,675
Likes: 5
From: Bellevue WA
Originally Posted by TeamRX8
n00bs will be n00bs .....

Everybody is a noob.
Reply
Old Aug 17, 2010 | 07:18 PM
  #138  
Charles R. Hill's Avatar
Owner of BHR
iTrader: (7)
 
Joined: Nov 2003
Posts: 4,101
Likes: 45
Originally Posted by Easy_E1
Yes.


"The world does not start and stop at your convenience, you miserable piece of......"

Walter from The Big Lebowski
Reply
Old Aug 17, 2010 | 07:25 PM
  #139  
TeamRX8's Avatar
Registered
iTrader: (25)
 
Joined: Apr 2005
Posts: 26,936
Likes: 2,141
Originally Posted by Easy_E1
Everybody is a noob.
Everybody will be everybody ... Except in the case of a n00bette such as yourself
Reply
Old Aug 18, 2010 | 12:12 AM
  #140  
RotaryMachineRx's Avatar
SPOOLN8
iTrader: (1)
 
Joined: Nov 2008
Posts: 2,300
Likes: 245
From: Edmonton, Alberta, Canada
Originally Posted by Charles R. Hill
Based on mere statistics? There are SO many variables involved and so few F/I'd Renesis engines, relatively speaking, that mere statistics will not suffice. Not IMO, anyway.

haha based off mere statistics is exactly where that is from...That's all I have to go off up here haha.... but one day when budgeting is of less concern and I am more knowledgeable in the world of FI I mean to test this engine so I can give an answer from first hand experience. Not to mention FI'd Renny's should slowly become more affordable
Reply
Old Aug 18, 2010 | 03:37 AM
  #141  
ganseg's Avatar
Nature vs. Nurture
iTrader: (5)
 
Joined: Oct 2009
Posts: 382
Likes: 0
From: Maple Grove, MN
Originally Posted by Modified Dave
Just did a ARK Design MFD (multi-function display) yesterday with oil temp, oil pressure and water temp sending units and Racing Beat water temp adapter and oil adapter. Also working on a trunk mounted Odyssey PC680 battery with a West Coast Batteries bracket. These will be in the Nov issue I think. Lots of other cool stuff coming from BHR, Racing Beat, Cobb, Mazdaspeed and others.

I absolutely love driving this car at the race track. It's wonderfully balanced and rewarding to drive on the limit. It just needs an extra 100-hp or so I think we'll get maybe half way there with all the mods planned, but that next 50+ hp may require something a little more extreme. Anyway, that's long-term since the main thing right now is to get the car prepped to the full extent of the STX rules so I can take a reasonably competitive package to the Solo Nats next month. After that I think I'll prep it for Time Attack and see about that big horsepower upgrade.

I hope this thread can get back on track with you. It is a lot of fun seeing this written up.
Reply
Old Aug 18, 2010 | 08:59 AM
  #142  
Charles R. Hill's Avatar
Owner of BHR
iTrader: (7)
 
Joined: Nov 2003
Posts: 4,101
Likes: 45
Originally Posted by RotaryMachineRx
1).... but one day when budgeting is of less concern and I am more knowledgeable in the world of FI I mean to test this engine so I can give an answer from first hand experience. 2) Not to mention FI'd Renny's should slowly become more affordable
1) By then, BHR will have published everything anyone will want to know.

2) How so?
Reply
Old Aug 18, 2010 | 09:14 AM
  #143  
RotaryMachineRx's Avatar
SPOOLN8
iTrader: (1)
 
Joined: Nov 2008
Posts: 2,300
Likes: 245
From: Edmonton, Alberta, Canada
Originally Posted by Charles R. Hill
2) How so?

Cheaper to purchase an Rx8 therefore more people will take it FI.
Reply
Old Aug 18, 2010 | 09:24 AM
  #144  
Charles R. Hill's Avatar
Owner of BHR
iTrader: (7)
 
Joined: Nov 2003
Posts: 4,101
Likes: 45
Originally Posted by RotaryMachineRx
Cheaper to purchase an Rx8 therefore more people will take it FI.
How much cheaper does it need to get before people are willing to risk their Renesis engines because their buddy, who tunes Hondas all day long, decides that Renesis engines are no different than piston engines? We are on our 4th and 5th generation owners these days, RX-8s can be had for less than $10K, and I am not yet seeing this trend you are hoping for. There are many people inquiring about going F/I but they cannot afford to lose their engines MORESO than those of us who got our cars when they first came out.

Think of it this way; rebuilding Renesis engines will not get cheaper. Therefore engine replacement cost is becoming a greater percentage of the purchase price of the car, itself.

That is just my theory, though.

This is all just sidebar conversation until Dave resumes posting about his mods, anyway. Classroom murmur, if you will........
Reply
Old Aug 19, 2010 | 01:54 PM
  #145  
Modified Dave's Avatar
Thread Starter
98% chimp
 
Joined: Dec 2009
Posts: 116
Likes: 0
My 8 only cost me $11k, which I think is a heck of a deal for a low mileage sports car that's this much fun to drive. With 300whp, it'd be plenty fast given that it's a relatively lightweight chassis. I'm tempted to do something silly like a V8 swap, but before I go anywhere near that I'm going to port the Renesis and see what kind of naturally aspirated power I can get out of it and then I'm going to look at a low boost supercharger setup. No point in doing a complex and expensive V8 swap if I can get the Renesis to a power level I'm happy with and is reliable.

Speaking of reliability, here's a couple pics of that ARK Design MFD gauge unit I recently installed. It's a pretty cool little device and doesn't clutter up the interior at all. I like the fact that it stores peak temp and pressure values so that I can review them after a track session where both water and oil temp are critical to keep an eye on with these engines. I'm curious to see if I get a water temp drop on track once I relocate the battery to the trunk. Will report back on that one once the battery relocation is done and I've been out to the track again for testing.

Name:  ARKMFD1.jpg
Views: 166
Size:  53.9 KB
Name:  ARKMFD2.jpg
Views: 179
Size:  71.5 KB

Took a couple glam shots recently for an upcoming story that I thought I'd share too while I'm at it.

Name:  rx8rig1sm.jpg
Views: 210
Size:  75.5 KB
Name:  RX8graffiti1sm.jpg
Views: 218
Size:  192.5 KB

Gotta get some MS sideskirts to go with the front bumper, plus I've got a really nice custom wing from DJ Racecars in the UK that we'll be making some nice mounts for so it can call the 8's trunk home. Going to build a custom removable front splitter too for Time Attack use, kind of like the one I built for my racecar:

Name:  SplitterMount_Colored.jpg
Views: 166
Size:  131.2 KB
Name:  SplitterMount_Colored2.jpg
Views: 179
Size:  116.5 KB
Name:  SplitterMount_Colored3.jpg
Views: 165
Size:  58.3 KB
Name:  SplitterMounts4.jpg
Views: 281
Size:  126.0 KB

Gotta thank the noob-lovin' TeamRX8 for his post about HJS Motorsports, since I got my hands on one of their WRC catalytic converters and will build that into the Racing Beat midpipe I have on the way. I'm excited to see how this cat works out, since I've only ever tried consumer-grade high-flow cats before. This thing is a true hardcore motorsports cat so it'll be interesting to see how durable it is and what kind of power it frees up.

Last edited by Modified Dave; Aug 19, 2010 at 02:03 PM.
Reply
Old Aug 19, 2010 | 03:04 PM
  #146  
dillsrotary's Avatar
jersey fresh
 
Joined: Dec 2005
Posts: 3,688
Likes: 0
From: Boston, MA
Thats a clean civic, very nice
Reply
Old Aug 19, 2010 | 03:09 PM
  #147  
Flashwing's Avatar
3-wheeler
 
Joined: Dec 2005
Posts: 2,734
Likes: 1
From: Phoenix
Dave does the ARK operate via OBD II or is it a direct plugin? I've been looking for a replacement for the MSD DashHawk for a while now but haven't found anything that I liked.
Reply
Old Aug 19, 2010 | 03:15 PM
  #148  
Easy_E1's Avatar
Registered
iTrader: (2)
 
Joined: Sep 2005
Posts: 7,675
Likes: 5
From: Bellevue WA
Originally Posted by TeamRX8
Everybody will be everybody ... Except in the case of a n00bette such as yourself
I need me some fried chicken. Finger lickin' good!

Name:  fried_chicken.jpg
Views: 174
Size:  79.9 KB
Reply
Old Aug 19, 2010 | 03:16 PM
  #149  
Easy_E1's Avatar
Registered
iTrader: (2)
 
Joined: Sep 2005
Posts: 7,675
Likes: 5
From: Bellevue WA
By the way, the car is looking good Dave!
Reply
Old Aug 19, 2010 | 03:39 PM
  #150  
TeamRX8's Avatar
Registered
iTrader: (25)
 
Joined: Apr 2005
Posts: 26,936
Likes: 2,141
Originally Posted by Easy_E1
I need me some kara-age. Finger lickin' good!

Fixed, eat mo' washoku .....
Reply


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


All times are GMT -5. The time now is 04:22 PM.