Building Custom Turbo for the RX-8
01-07-2005, 12:00 PM
#126
Originally Posted by Gibbo
Couple of quick questions:
1) Does it free rev to red line or does it cut out at a lower rev level.
2) Does your engine light stay on
3) Any side effects from the install yet?
I have had a couple o issues with a product I am looking at and am curious if you have had any hassles.
Thanks,
Gibbo.
1) Does it free rev to red line or does it cut out at a lower rev level.
2) Does your engine light stay on
3) Any side effects from the install yet?
I have had a couple o issues with a product I am looking at and am curious if you have had any hassles.
Thanks,
Gibbo.
The only side-effect of the install is anxiety because I had to run out of town almsot the instant I finished and haven't had the chance to drive it yet!
Originally Posted by rotarygod
I've been comparing the template you made with pictures of the engine. I am all but convinced that the size on the template is the size of the runners WITHOUT the sleeves installed. It all seems to match up perfectly that way.
01-07-2005, 02:25 PM
#130
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You only THINK it hasn't seen full boost!
jds
jds
Originally Posted by dmp
I wonder if Nikki (Is that her name? it's what I remember it being...) is enjoying the boosted car? :D I bet she sneaks it out when you are gone, Jeff.
:D
:D
01-07-2005, 04:24 PM
#131
RX8 and a Truk....
Originally Posted by TODreamer
forgive me if its a dumb Q as I know nothing about Turbos but did you put blow off valves?
It's pictured there...just right of center of the pic
01-10-2005, 01:42 AM
#132
Well, I finally got to drive the thing hard today.
I spent about three hours playing with the injector duty cycles for the secondary and primary 2 fuel injectors and logging the MAF output under boost and other goodies.
The ECU never gets above 40% duty cycle for the secondaries, so that means I am limited to 80% of maximum since the E-Manage can only add up to 100% of the original pulse duration. That means I will be leaving some power on the table and holding the boost to 6 or 6.5 PSI max on the stock FI system.
However, 3.5 PSI will blow your mind.
At 3.5 PSI, it is an entirely different car.
There really isn't a better way for me to describe it - the car is just really snappy and packs much more punch down low. Lots 'O fun.:p
I spent about three hours playing with the injector duty cycles for the secondary and primary 2 fuel injectors and logging the MAF output under boost and other goodies.
The ECU never gets above 40% duty cycle for the secondaries, so that means I am limited to 80% of maximum since the E-Manage can only add up to 100% of the original pulse duration. That means I will be leaving some power on the table and holding the boost to 6 or 6.5 PSI max on the stock FI system.
However, 3.5 PSI will blow your mind.
At 3.5 PSI, it is an entirely different car.
There really isn't a better way for me to describe it - the car is just really snappy and packs much more punch down low. Lots 'O fun.:p
01-10-2005, 03:31 AM
#133
R u ready 2 get PUNISHED?
Join Date: Mar 2004
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Man Jeff you really are a MANIAC. The install looks damn nice and everything is sounding sooooooo good. I applaud your efforts and completion of your project. Thanks a million for all of the info and experience you are posting up for us.
01-10-2005, 06:35 AM
#134
Rangers Lead The Way!
Originally Posted by Charles R. Hill
Jeff, if you have other aftermarket stuff on the car in addition to the turbo you may be seeing a 45-50 h.p. boost under 3.5 lbs. That is pretty exciting feeling, especially when you hit 6k. Do you now have trouble keeping traction in first and second gears? What is your rpm/boost curve? With nitrous I feel the difference as low as 4K but at 6K the rear end wants to sometimes break loose. I can't wait to get the 75 h.p. jets in the nozzle.
Charles
Charles
01-10-2005, 08:16 AM
#136
Yeah, I see all 5.5 PSI by 3500 RPM. The only other aftermarket "speed" item I have is the BB midpipe (still no CEL - my OEM ECU appears to be very forgiving).
I haven't really pounded the thing yet - I just do some smooth run-ups in various gears and watch the A/F. I won't be able to really nail it until I am satisfied that the E-Manage is properly dialed in.
I haven't really pounded the thing yet - I just do some smooth run-ups in various gears and watch the A/F. I won't be able to really nail it until I am satisfied that the E-Manage is properly dialed in.
01-10-2005, 08:31 AM
#138
Rangers Lead The Way!
Originally Posted by Charles R. Hill
What are the chances of the two of us doing a side-by-side comparison of our systems(turbo vs. nitrous) and then writing an article about it, Jeff?
Charles
Charles
01-10-2005, 08:51 AM
#139
Rangers Lead The Way!
Originally Posted by Charles R. Hill
I queried you on the idea of helping with your install. Did you see it? Either way, I would be happy to meet up and check out each other's stuff. I would like to combine turbo and nitrous soon, anyway.
Charles
Charles
01-10-2005, 10:54 AM
#141
Originally Posted by Charles R. Hill
What are the chances of the two of us doing a side-by-side comparison of our systems(turbo vs. nitrous) and then writing an article about it, Jeff?
Charles
Charles
Originally Posted by philodox
I'm starting the install of my kit today.. hehe.. I'm always up for a road trip
I'd really love to see the parts and jack your E-Manage programming while I'm at it!
Originally Posted by canaryrx8
wow, can't wait to see the numbers etc. when you get it all dialed, remarkable job, it almost looks like you could even run the engine cover if you wanted.
Numbers will be forthcoming.
01-10-2005, 08:25 PM
#144
Registered
There is a picture that Philodox took from his turbo install. It confirms my belief about the manifold opening/gasket port size vs the actual engine exhaust runners size. The engine runners are WAY smaller. Now I need to figure out what the actual size is so I can build the prototype header. Damn it Mazda!!!
01-10-2005, 08:32 PM
#145
Rangers Lead The Way!
Originally Posted by rotarygod
There is a picture that Philodox took from his turbo install. It confirms my belief about the manifold opening/gasket port size vs the actual engine exhaust runners size. The engine runners are WAY smaller. Now I need to figure out what the actual size is so I can build the prototype header. Damn it Mazda!!!
01-10-2005, 08:41 PM
#148
Rangers Lead The Way!
Originally Posted by ranger4277
I guess shipping RG him your old manifold won't help any will it?
01-10-2005, 09:36 PM
#149
Originally Posted by MazdaManiac
I do run the engine cover. I just took it off for the pics. In fact, I am fabricating an enclosure for the air filter - I want the whole thing to look practically stock.
Numbers will be forthcoming.
Numbers will be forthcoming.
01-12-2005, 01:46 AM
#150
After looking at Jon's Greddy system, I wired my injectors differently and now I have the tuning under better (finer) control.
I am really at a loss for words to describe how the car feels now. I guess mind-blowing is apropos.
Though I am only running about 5.5 to 6 PSI, I don't think I will have much use for any more in the near future - the car is already too fast to control properly.
On my way to see Jon, I came off the NJ Turnpike in fourth gear and got into it a bit too enthusiastically and got sideways. In fourth.
The road was a bit damp, but I think that is a pretty good indicator of the kind of power that I have on-tap.
I am really at a loss for words to describe how the car feels now. I guess mind-blowing is apropos.
Though I am only running about 5.5 to 6 PSI, I don't think I will have much use for any more in the near future - the car is already too fast to control properly.
On my way to see Jon, I came off the NJ Turnpike in fourth gear and got into it a bit too enthusiastically and got sideways. In fourth.
The road was a bit damp, but I think that is a pretty good indicator of the kind of power that I have on-tap.