Mine too, but I still need to get my car on a dyno to see exactly where these coils put me in regards to top end power. My oem coils were shitty so I now I got a power increase when I installed them but I can't tell if I am in the 180's or low 190's yet.

 

what exactly are your setups?

 

yes that does seem to be the case around here .

 

Pics or it never happened!

 

I had a straight pipe that exited through the center , no resonater , no cat , full 3 inch. I loved it and it was loud as a ****. But i took it off when my neighbors grandma got a heart attack from it. Yeah <_<. lol. So if you got the ignition upgrade and staying in the 300whp range it wouldnt make a difference? Just wondering because id rather buy an upgrade when i need to replace my coils rather then stock.

 

i had a straight pipe too. LMAO didnt that scare the hell outta people when u came down the street.....?

 

From what I've gathered, this isnt simply an upgrade for those with higher power. The stock system is a weak point, even in stock form. I think it should be done for anyone who has anything decently above stock power, including nitrous. I run nitrous and have every intention of getting the BHR upgrade when I have a chance.

 

I made a nice amount over 300 whp at 9 psi with the OEM coils. The dyno charts came out real nice, no weird jagged edges from ignition breaking up. Zero issues. But I changed my coils once a year as regular maintenance.

As I said, if your oem coils are not shot, your car will perform decently till you're in the 330 whp range. If your oem coils are shot, or getting close to it, you will definitely see gains from an ignition system that is designed to work with your car.

 

I would love to see you try to drive a 13B without a muffler or cat.

rotore 787 you seem to be speaking a lot without 100% knowledge of the renesis motor in general. Remember, any experience does not necessarily directly translate...

The benefits of upgraded ignition are being downplayed in this thread. It will prevent you from potentially losing power. Some upgraded ignition systems are much more adequate than others. I have replaced my coils once in my 38,000mi and the difference was certainly noticeable. Search and read the mazsport ignition solution thread and the BHR ignition thread, everything you need to know is already there. I personally will be purchasing the BHR Yukon set.

Posting more on rx8club.com? more throttle response

 

what is the renesis engine its just a fuel economic version of the 13b. iv'e done some research on the 13b-msp (renesis). and yes i've driven a car with a 13b without a cat or muffler from ponce to rincon with no problems what so ever i just kept getting pulled over for it.

a cat is just used for emissions and a muffler is used to control the exhaust sound coming from the engine make thats what i was taught

 

Lol, thats what I meant - law enforcement and of course the ear bleed factor! Nothing to do with how the engine responds.

I was just commenting because this information isn't 100% applicable to the renny. 13b-rew and 13b-msp are different engines, fuel economy is one of the issues addressed.

As mysql said, the oe coils don't take to heat so well. Thus, ignition upgrade (or frequent replacement of OE) may indeed be beneficial below 375hp, or 330hp for that matter.

Lastly, that car may have other modifications but an 11whp gain (more like retrieval) is easily possible - the stockers could have been on the way out or the car could have temporarily been on the lean-ish side.

 

lol i'll give you that it will cause hearing loss for a while but it depends on your sound preference. And the straight pipe exhaust will give u atleast a couple horses i think sence you dont have any ristriction on the exhaust.

and my bad i'm still researching the msp

 

the problem isn't the stock coil's capabilities @ 300 whp, it's how long it is able to keep up that capacity @ 300whp

and even mysql would agree that, the stock coils.....@300whp, will not last long, and my definition of long is like a month or two

 

My car has made quite a bit more than 300 whp. I just never had a good dyno run due to the problems with the mazsport coils.

I have had over 25,000 miles with FI, and changing the coils once a year worked fine. So I would disagree with your statement. In fact, changing out the coils once a year is likely far too soon. I just did it because the coils are only $32 each and I didn't want to bother troubleshooting possible problems that might arise from one of them going south.

The oem coils are prone to failure, but that doesn't mean they can't function. With that said, if you can get a good set of coils that properly WORK with the vehicle, I would recommend upgrading just to get away from the cycle of coil replacement and allow your car a higher ceiling for power levels.

 

r u sure? cus mine are disintegrating due to heat from the engine

 

Yeah, I'm pretty sure. However my situation may not reflect yours. Or you could just be the happy recipient of a bum set of coils.