Hello all you rotary nutters!

05rex8 · 12-21-2009, 08:39 PM

welcome to the forum!
I am looking forward to your rx8 build

Modified Dave · 12-21-2009, 11:22 PM

Max777, that's actually a really interesting idea that I hadn't considered. The FC is a great car that I've loved since I was a teenager (many years ago...lol), and it would be a lot of fun to build one. I'll have to give it some thought, but I do love the modern comforts and amenities available in the RX-8. I'm also amazed how affordable '04 and '05 RX-8s are given their original sticker price, so although it may not be as affordable starting point as a FC (or a JDM RHD FD, which I can buy locally for about $7k) it's a great bargain for such a modern sports machine.

Angelo, I've got to have a manual gearbox. This car will be track-tested from Day 1 and used for some autocross and street class Time Attack (and maybe even some drifting), so an auto trans really isn't an option. If I can't get a manual without a sunroof, I'll just have to find a carbon fiber roof panel that I can use to delete the sunroof. Less mass up high on the chassis is always a good thing and I'll need the headroom when wearing a helmet at the track.

***Herblenny*** · 12-22-2009, 05:48 PM

Quote:

Originally Posted by Modified Dave

Max777, that's actually a really interesting idea that I hadn't considered. The FC is a great car that I've loved since I was a teenager (many years ago...lol), and it would be a lot of fun to build one. I'll have to give it some thought, but I do love the modern comforts and amenities available in the RX-8. I'm also amazed how affordable '04 and '05 RX-8s are given their original sticker price, so although it may not be as affordable starting point as a FC (or a JDM RHD FD, which I can buy locally for about $7k) it's a great bargain for such a modern sports machine.

Angelo, I've got to have a manual gearbox. This car will be track-tested from Day 1 and used for some autocross and street class Time Attack (and maybe even some drifting), so an auto trans really isn't an option. If I can't get a manual without a sunroof, I'll just have to find a carbon fiber roof panel that I can use to delete the sunroof. Less mass up high on the chassis is always a good thing and I'll need the headroom when wearing a helmet at the track.

I think 8 would be better as a build up car for Modified Mag than FC.. I say this because you'll have far larger community and wider range of demographics getting into 8s than FC (also FC's, you'll have to choose from NA vs. FI and most products have been developed over the years vs. newer 8 market where new products are made currently). And I know more people who has an 8 are the ones who need more info vs. FCs.. Most FC owners can find information about them fairly easy.. where as 8's, its kind of a cluster fuck... especially when it comes to FI.

Far as I know, if you are looking for base 8, you should go with 05+. 04's minus GT had single oil coolers... and if I remember, 05's is when all the models had dual coolers. I definitely recommend dual oil coolers on any rotaries... More so than upgrading your rad.

I hope you get your car before DGRRX and hope you could make it over!

05rex8 · 12-22-2009, 09:48 PM

Quote:

Originally Posted by Herblenny

I think 8 would be better as a build up car for Modified Mag than FC.. I say this because you'll have far larger community and wider range of demographics getting into 8s than FC (also FC's, you'll have to choose from NA vs. FI and most products have been developed over the years vs. newer 8 market where new products are made currently). And I know more people who has an 8 are the ones who need more info vs. FCs.. Most FC owners can find information about them fairly easy.. where as 8's, its kind of a cluster fuck... especially when it comes to FI.

Far as I know, if you are looking for base 8, you should go with 05+. 04's minus GT had single oil coolers... and if I remember, 05's is when all the models had dual coolers. I definitely recommend dual oil coolers on any rotaries... More so than upgrading your rad.

I hope you get your car before DGRRX and hope you could make it over!

all USDM 6 speed MT 8's have dual oil coolers; even the base models
the automatic 8's have the single oil cooler as well as the JDM 5 speed and 6 speed MT

Modified Dave · 12-23-2009, 09:02 PM

Interesting stuff. So as long as it has a manual gearbox, it should have the dual oil coolers? I'll have to visually check when I start test driving cars after the holidays. Sounds like an '05 GS with cloth seats, no sunroof, and a manual gearbox will have the dual coolers and should therefore be a good starting point. Will most likely end up with an '05 because there's a ton of them for sale around here right now for $12-13k with nice low mileage, whereas the '04s all seem to have quite a bit more miles. It's not exactly prime time to sell a car like this in Toronto, but there's still a surprisingly good selection of '04 and '05 to choose from. I'll let you all know how it goes!

Phil, I've gotta say, I am intrigued by the idea of doing a Rotrex blower on the 8, mainly because I installed a Rotrex on my EG Civic race car and it made a ton of power (went from 240whp to 412whp). Would be interesting to see how the Rotrex works on a Renesis by comparison, and if you read my story about the Rotrex install you'll see there's a lot to like about it as a forced induction approach. Low heat, low engine loading, no chance of an overboosting booboo, etc. Anyway, feel free to check out the install and dyno test story here:

http://www.tune2win.com/index.php/pr...all_dyno_test/

Does anyone make a Rotrex-based supercharger kit for the 8, or will I have to fabricate my own mounting bracket?

RotorDad · 12-23-2009, 09:08 PM

Welcome to the site, I look forward to see any rotary powered projects. Congrats on working for a great mag.

05rex8 · 12-25-2009, 04:19 PM

Quote:

Originally Posted by Modified Dave

Does anyone make a Rotrex-based supercharger kit for the 8, or will I have to fabricate my own mounting bracket?

No it will have to be custom made. On rx8club.com there is a guy from Australia that did a rotrex sc build on his 8. Here is the thread: http://www.rx8club.com/showthread.ph...ghlight=rotrex

Not sure if it has much useful info in it, I just glanced at it briefly. But he would be a good person to get in touch with about the Rotrex SC on an 8.

Modified Dave · 01-03-2010, 11:26 PM

Cool, thanks for the link 05rex8. I'll give it a good read.

I did a Google search and found that Knight Sports makes a Rotrex-based supercharger kit for the 8, but I think I'd likely build my own kit after the experience I've gained supercharging my Honda with a Rotrex C38-61.

Max777 · 12-24-2009, 04:23 AM

Quote:

Originally Posted by Herblenny

I think 8 would be better as a build up car for Modified Mag than FC.. I say this because you'll have far larger community and wider range of demographics getting into 8s than FC (also FC's, you'll have to choose from NA vs. FI and most products have been developed over the years vs. newer 8 market where new products are made currently). And I know more people who has an 8 are the ones who need more info vs. FCs.. Most FC owners can find information about them fairly easy.. where as 8's, its kind of a cluster fuck... especially when it comes to FI.... blah blah blah...

Dear Mr. Herbs,

I understand your point of view, and I agree with the reasons listed, doing an 8 would make more sense and be more practical, which is often how you want to run a business...

However, let me ask you this: when have sports cars been about being practical, efficient, and making sense? Is that why we do it, is that what we're into? Even if these factors come into play, in the end, is "practicality" what our cars are about? Let's take your car, or Titanium's FC as some great examples. With the amount of money, time and energy invested into projects like that, in the end, is it worth it? I say hell f****** yes!

Why? Because we love them! We don't care, about the fact that we often spend more time under an Rx-7 rather than in it, we don't care that we put $10,000 times the amount into cars that were often worthless from other people's standpoint, and we get more joy out of bolting on a boost gauge, starting up a motor we just rebuilt, or getting the fastest time of the day at the autocross than some blokes who win a million dollars playing poker. This is our passion, this is what we do, and we can NOT nix a good option simply because it "doesn't make sense"

There you have it,

Maximilian Petrov-Schrepfer.

PS: I did not post this as an argument, rather only a statement of my personal opinion.

12-21-2009, 08:39 PM	#1
05rex8 Turbo 8 Join Date: Oct 2008 Posts: 131 Rep Power: 17	welcome to the forum! I am looking forward to your rx8 build __________________

12-23-2009, 09:08 PM	#6
RotorDad Big Ugly Join Date: Apr 2009 Location: Fredericksburg, Va Posts: 591 Rep Power: 17	Welcome to the site, I look forward to see any rotary powered projects. Congrats on working for a great mag. __________________ *Boosted Big Body On 335's* PS3 ID: Rotordad 1986 Mazda RX7 GXL - Street ported 13BT, Haltech, 62mm, ect. 2006 MazdaSpeed 6 - Eagle, Wiseco, Cobb, ect.

12-21-2009, 11:22 PM	#2
Modified Dave The Newbie Join Date: Apr 2008 Posts: 17 Rep Power: 0	Max777, that's actually a really interesting idea that I hadn't considered. The FC is a great car that I've loved since I was a teenager (many years ago...lol), and it would be a lot of fun to build one. I'll have to give it some thought, but I do love the modern comforts and amenities available in the RX-8. I'm also amazed how affordable '04 and '05 RX-8s are given their original sticker price, so although it may not be as affordable starting point as a FC (or a JDM RHD FD, which I can buy locally for about $7k) it's a great bargain for such a modern sports machine. Angelo, I've got to have a manual gearbox. This car will be track-tested from Day 1 and used for some autocross and street class Time Attack (and maybe even some drifting), so an auto trans really isn't an option. If I can't get a manual without a sunroof, I'll just have to find a carbon fiber roof panel that I can use to delete the sunroof. Less mass up high on the chassis is always a good thing and I'll need the headroom when wearing a helmet at the track.

12-23-2009, 09:02 PM	#5
Modified Dave The Newbie Join Date: Apr 2008 Posts: 17 Rep Power: 0	Interesting stuff. So as long as it has a manual gearbox, it should have the dual oil coolers? I'll have to visually check when I start test driving cars after the holidays. Sounds like an '05 GS with cloth seats, no sunroof, and a manual gearbox will have the dual coolers and should therefore be a good starting point. Will most likely end up with an '05 because there's a ton of them for sale around here right now for $12-13k with nice low mileage, whereas the '04s all seem to have quite a bit more miles. It's not exactly prime time to sell a car like this in Toronto, but there's still a surprisingly good selection of '04 and '05 to choose from. I'll let you all know how it goes! Phil, I've gotta say, I am intrigued by the idea of doing a Rotrex blower on the 8, mainly because I installed a Rotrex on my EG Civic race car and it made a ton of power (went from 240whp to 412whp). Would be interesting to see how the Rotrex works on a Renesis by comparison, and if you read my story about the Rotrex install you'll see there's a lot to like about it as a forced induction approach. Low heat, low engine loading, no chance of an overboosting booboo, etc. Anyway, feel free to check out the install and dyno test story here: http://www.tune2win.com/index.php/pr...all_dyno_test/ Does anyone make a Rotrex-based supercharger kit for the 8, or will I have to fabricate my own mounting bracket?

01-03-2010, 11:26 PM	#8
Modified Dave The Newbie Join Date: Apr 2008 Posts: 17 Rep Power: 0	Cool, thanks for the link 05rex8. I'll give it a good read. I did a Google search and found that Knight Sports makes a Rotrex-based supercharger kit for the 8, but I think I'd likely build my own kit after the experience I've gained supercharging my Honda with a Rotrex C38-61.