Rx8 tuning help

reddozen · 09-17-2013, 09:40 AM

The advantage of the AP setup is that Mazda Maniac will tune your car based on your setup. Also, you get to keep the tool, and you can use it to disable engine codes, tune the car again if you make further mods, etc. The racing beat flash s a generic flash that doesn't specifically take into account your car's setup. It's better than factory, but not as good as a complete tuning option.

As for porting templates... There's really no room to port the exhaust ports without hitting the water jackets. Also, don't expect more than 5~10HP tops out of intake porting on the renesis. It's honestly not worth the cost. Intake, exhaust, headers... nothing really adds any power to the 8 without spending a LOT of money. Mazda actually did a good job at squeezing all the reliable power out of the motor from the factory.

My car is bridge ported, AP tuned, intake, full exhaust, and I doubt I'm even pulling 220HP to the wheels (probably more like 210 tops on a good day). Compare this to guys with stock port motors that are serious racers making 200~230HP, and one could make the argument that porting does absolutely nothing for a renesis. You're looking at probably $100/1 HP on this motor.

Just giving you the info so you can make your own decision. I'm not trying to run you off, or scare you away from it if you really want it. Just want you to know that it's not like an old 13b engine where porting and good intake / exhaust can net you 20~30HP pretty easily.

Jr_gosetto · 09-17-2013, 01:01 PM

Cheers for the info mate. I knew that there wasn't much to be gained from a S-port but if the engine was going to be apart thought I might aswell just port it. And would a deburring/cleaning the runners so there is a smooth transition, or is this another case of just the old 13b was like that. And that is a good thing to think about in regards to the AP bc I was thinking of a turbo kit down the road, small amount of boost tho no more the 8 psi I might even run only 4 psi bc wen I turbo it I will be running the 10:1 cr rotars. Ill be honest tho idk how rotarys do with high comp and turbo, but I know piston engine DON'T like to be boosted wen compression is high. Is there a tread on hear by chance explaining high compression turbo setups and wat the possible repercussions are, posting a link would be great but all u have to say is yes or no and ill search it if there is. I know on piston engines a few things can happen with high comp turno setups, but the biggest one is snapping a conecting rod. So would to much boost on a 10:1cr rotary blow seals/crack a housing or anything like that, or would it just take it.

Plus the main reason I want to do a high comp turbo setup is I was talking to a guy I work with who owned an 8, he said the only reason they have a 10grand redline is bc over that an it cannot get enough air to continue to make power. He said if u put on a TD04 with mild boost you could raise the rpm. is this statement true, so I'm asking the experts(u guys)now lol.

Jr_gosetto · 09-17-2013, 07:25 PM

[QUOTE=reddozen;My car is bridge ported, AP tuned, intake, full exhaust[/QUOTE]

Well from I have heard that and NA 13b doesn't really benifit greatly from a Bridgeport, only turbod applications see any real gain. But then again that's only wat I have heard, I haven't done it my self so I can't be sure. But it dose make an awesome sound

RETed · 09-18-2013, 04:24 AM

Quote:

Originally Posted by Jr_gosetto

Well from I have heard that and NA 13b doesn't really benifit greatly from a Bridgeport, only turbod applications see any real gain. But then again that's only wat I have heard, I haven't done it my self so I can't be sure. But it dose make an awesome sound

You really need to do more research on the subject matter.
It sounds like you're being mislead...

-Ted

Jr_gosetto · 09-18-2013, 10:09 AM

Quote:

Originally Posted by RETed

You really need to do more research on the subject matter.
It sounds like you're being mislead...

-Ted

Any chance u can tell me the name of the thread comparing S and Bridgeport for NA 13b I would like to learn the "proper" information behind the porting.

09-17-2013, 09:40 AM	#1
reddozen Gold Wheels FTW Join Date: Mar 2008 Posts: 744 Rep Power: 18	The advantage of the AP setup is that Mazda Maniac will tune your car based on your setup. Also, you get to keep the tool, and you can use it to disable engine codes, tune the car again if you make further mods, etc. The racing beat flash s a generic flash that doesn't specifically take into account your car's setup. It's better than factory, but not as good as a complete tuning option. As for porting templates... There's really no room to port the exhaust ports without hitting the water jackets. Also, don't expect more than 5~10HP tops out of intake porting on the renesis. It's honestly not worth the cost. Intake, exhaust, headers... nothing really adds any power to the 8 without spending a LOT of money. Mazda actually did a good job at squeezing all the reliable power out of the motor from the factory. My car is bridge ported, AP tuned, intake, full exhaust, and I doubt I'm even pulling 220HP to the wheels (probably more like 210 tops on a good day). Compare this to guys with stock port motors that are serious racers making 200~230HP, and one could make the argument that porting does absolutely nothing for a renesis. You're looking at probably $100/1 HP on this motor. Just giving you the info so you can make your own decision. I'm not trying to run you off, or scare you away from it if you really want it. Just want you to know that it's not like an old 13b engine where porting and good intake / exhaust can net you 20~30HP pretty easily. __________________ My Cars: 1974 RX4 Coupe 1991 FC3S RX7 - Sold 2003 ZZW30 MR2 (Rotary swap after RX8) 2004 SE3P RX8 (20B Swap in the works) Last edited by reddozen; 09-17-2013 at 09:42 AM.

09-17-2013, 01:01 PM	#2
Jr_gosetto The Newbie Join Date: Aug 2013 Posts: 25 Rep Power: 0	Cheers for the info mate. I knew that there wasn't much to be gained from a S-port but if the engine was going to be apart thought I might aswell just port it. And would a deburring/cleaning the runners so there is a smooth transition, or is this another case of just the old 13b was like that. And that is a good thing to think about in regards to the AP bc I was thinking of a turbo kit down the road, small amount of boost tho no more the 8 psi I might even run only 4 psi bc wen I turbo it I will be running the 10:1 cr rotars. Ill be honest tho idk how rotarys do with high comp and turbo, but I know piston engine DON'T like to be boosted wen compression is high. Is there a tread on hear by chance explaining high compression turbo setups and wat the possible repercussions are, posting a link would be great but all u have to say is yes or no and ill search it if there is. I know on piston engines a few things can happen with high comp turno setups, but the biggest one is snapping a conecting rod. So would to much boost on a 10:1cr rotary blow seals/crack a housing or anything like that, or would it just take it. Plus the main reason I want to do a high comp turbo setup is I was talking to a guy I work with who owned an 8, he said the only reason they have a 10grand redline is bc over that an it cannot get enough air to continue to make power. He said if u put on a TD04 with mild boost you could raise the rpm. is this statement true, so I'm asking the experts(u guys)now lol. Last edited by Jr_gosetto; 09-17-2013 at 03:51 PM.

09-17-2013, 07:25 PM	#3
Jr_gosetto The Newbie Join Date: Aug 2013 Posts: 25 Rep Power: 0	[QUOTE=reddozen;My car is bridge ported, AP tuned, intake, full exhaust[/QUOTE] Well from I have heard that and NA 13b doesn't really benifit greatly from a Bridgeport, only turbod applications see any real gain. But then again that's only wat I have heard, I haven't done it my self so I can't be sure. But it dose make an awesome sound