R888

I heard "moon" and "phil's 8" got the Pettit SC.

How was it so far?

200 @WHP with inter-X confirmed with Pettit stage 2. But I am so frustrated the dyno result 200WHP with auto and 250WHP with MT. With that money to invest 6-7 k with inter-X, the logical reason for chasing the HP should sell the AT and get a MT.

In recent news, Pettit has also confirm the stage 3 can max out to 250WHP for auto. Now thats good stuff.

Anyone installed SC in auto? Give us your thought and some kinda of "to do list" will be greatly appreciated.

sosonic

Hmmm.... I read somewhere that the Pettit Auto was 210WHP. Considering that the MT was about 30HP to 40HP ahead of the Auto in the 1st place, that seems about right.

Also with the Auto there are other variables:

1. Is it a 4AT or 6AT?

2. The ATs have different HP rating.

Some ATs are 197 while other in other countries will be 212HP (including the 4AT) and the newer ATs are 212HP.

3. ECU flash?

Re-Amemiya's ECU flash for example can find around 10HP more. Whenever the Cobb Accessport come's out there might be more maps. The Int-X (which comes with the Pettit kit) might be able to find some more depending on the tune.

There might be a bit more there but needs to be found by the right tune. Pettit might be going conservative or missing something on the ATs, since they and many tuners are often more focused on the MTs.

R888

I heard "moon" got AT 4 Speed as well as "Phil's 8"

Phil's 8 has some tranny problem since he insist to go hit the 9000rpm.....

Another notice, the 4 speed AT has only 1 oil cooler on the driver side but not the passanger side. Now I am having a hard time to floor it when the car is tired only in the summer.

You got it, "lack of oxygen"

Atilla

iTrader: (1)

I was going to ask for a mapped out plan too here but due to my lack of reponses in other threads i kinda did more home work n' decided to go this route =>

1st - inter-x
2nd - k&n typhoon
3rd - exhaust (not decided)
4th - hi flow cat
5th - pulley upgrade (still debating)
and possibly the re-a ECU flash -
(within the next 6 months)

then in about a year or so when the new mods finally settle in - hit the market for the S/C -

however I'm still kinda hesitant because in the other thread 'turbo or S/C' - the turbo seemed to put up a tad bit better numbers and a bit of a better price (greddy) - however i have heard it's not exactly daily driver material - which i need.

what i'd like to know is some ball park #'s for the 6spd AT w/a SC.

Atilla

iTrader: (1)

sosonic?

by chance - would you know what the dyno'd hp of an 8 from southern california is??

sosonic

6AT would be 212HP and 4AT would be 197HP from Mazda for U.S. spec. What a specific RX-8 AT could do in Cali. would vary.

R888

You should always have the inter-X before the SC. All others mod like exhaust should do first, no pulley is necessary because it was included in the SC kit.

Oil cooler reliability

For the 4 speed AT, I agreed that the 2nd oil cooler is necessary on the passenger side. An aftermarket radiator will be a good idea too. Then re-frush with the ATF Royal purple fuild.

Brettus

iTrader: (2)

Get the int-x , exhaust & cat . The pulley & intake & reflash are obsolete when you go FI .

sosonic

For heat related issues:

1. Highly suggest getting the 2nd oil cooler. My 4AT has 2 oil coolers....

2. You may want to use Red Line Water Wetter (2 bottles) to augment your radiator fluid. I use it and think it works great. Its also a rust inhibitor.

3. Mazsport also has a $150 dollar hardware mod that will make sure your fans turn on at lower temps and do more to keep temps down.

http://www.mazsport.net/store/page9.html

4. Consider doing the breather mod. Basically, on pre-2006/7 RX-8, there is a return line that bring oil vapor and dirty air into your intake. On newer RX-8s they route this "gunk" into your lower intake manifold.

If you want your RX-8 to breathe only fresh air than consider this mod.

https://www.rx8club.com/showthread.p...reather+filter

5. Consider the throttle bypass mod, which may help with RX-8s in hot climates.

https://www.rx8club.com/showthread.php?t=36389.html

6. ECU flash.

Whether by Int-X or say Re-Amemiya ECU flash, you can have your fans turn on at lower temps.


ATF cooler and AT fluid:

I choose Red Line AT fluid. Make of that as you will, but I'm not having problems with my tranny and I have the rev limit cut and can go 9,000 rpm. Also you may need to be careful about which ATF cooler you choose too. However, there are many, many factors that go into tranny issues.

Lack of oxygen... A Pettit supercharger should definitely take care of that problem.

R888

Sosonic, whats the exact name of the redline AT fliud you are using?

Any links?

I found there are couple lines to choose from the redline.

thanks.

Atilla

iTrader: (1)

specifically - i picked up my 8 brand new 2006 in mid july last year - with 13 miles on it - total.

thanks for the help!

Atilla

iTrader: (1)

FINALLY! some straight advice

awesome - i figured that pulleys wouldn't really be needed - but just wanted to know for sure - and i would've liked the flash because i heard a lot of NA 8's get some pretty good results but i guess if im gonna go FI then i'll be good to go...oh yeah, and the intake was mainly for sound mods ha-

sosonic

Dude, Red Line's website is pretty famous.

High-Temp ATF - http://www.redlineoil.com/products_g...8&categoryID=8

Per your owner's manual use Dexron III equivalent or better fluid. Which Red Line meets and exceeds.

For the others (at or above Dexron III) , e-mail Red Line and ask them what they think. The racing ATF may be something you want to ask about.

Phil's 8

iTrader: (3)

Sosonic is correct when telling you to install cooling mods first. The a/t only came with one oil cooler and really needs two and did not come with a trans cooler. This mod is a must for the a/t. The Interceptor X did not and does not come with the s/c kit but is recommended as the emanage of choice (presently). I like the interceptor X with a couple of issues. It throws an check engine code that I have to keep reseting to check that I do not have a problem (Scott is working on this) and letting myself be convinced to have it dyno tuned. I don't drive on the dyno so I should have had it street tuned cuz I had some low end issues after the tuning. The tuning was done by one of the best rotary tuners, Steve Kan who was in town to tune the local 7 club. I gained 24 HP on the dyno but was "unstable" (what ever that means) with the final increase of 18 HP on the dyno. Top end is great. The s/c is not yet installed and will not be for a couple of weeks more. Nothing wrong with the s/c, in fact it is a great looking unit with just about every thing you will need ( just lack of instructions). As you know (by now)I have Charles R. Hill installing the kit and with his attention to details, needed some additional insight into the install. I have a s/c on my boat and I thought it was going to be as easy as that was to install.....wrong. Cam and Moon at Pettit have always been available to answer our questions (even bothered Moon at 2 AM on Saturday) but the old saying "A picture is worth a 1000 words" really is correct here.

zaku

AT RX8 did come with a tran cooler, it located at the button of the radiator
I attached my install of Plot ATF cooler for your reference

Atilla

iTrader: (1)

hope everything works out with that s/c - im def gonna be following a similar path as you soon enough - awesome work so far though, i can't wait to see what kinda numbers that thing will produce

oh yeah, you mention you wish you had a street tune rather than a straight dyno tune...im not too familiar with the whole dyno thing - what exactly is the difference? i'm asking because im gonna get the inter-x around the end of july/beginning of august

Phil's 8

iTrader: (3)

I stand corrected. To me this is just a reservoir but your correct it is a cooler, just not very effective. Living in the desert dictates exceptional cooling and thus a good aftermarket trans cooler is a must. Your location for the install is similar to mine.

I'm not familiar with the weather or the language in Taiwan and unfortunately can only speak English (and not very well). I was trying to read your profile. I am curious, what mods are available to you that we do not have yet? Any trans mods?

Phil's 8

iTrader: (3)

I'm sure others will have a more refined explanation or feel that I am not informed but Steve Kan explained it this way to me. The dyno tune is for top end horse power with the speeds and drivability in-between just a means to an end. A street tune is more for drivability at all speeds.

Also see this https://www.rx8club.com/mazsport-104/street-dyno-tuning-104708/

zaku

My car is a 2004 AT with GT package. current mileage is 32000km
The power mod including Odula ram air intake, Rmagic drop in filter, A-RF TREC,Autoexe plug cords, and earthing system, denso plugs; hand built catless midpipe and catback. No addtional oil cooler but Plot ATF cooler. I also install fan controller by A-RF. The sus mod includes Ohlins coilovers, Racing beat front/rear swar bars, Autoexe tower braces and member brace. wheels are OZ ultraleggera with Yokohama AD07tires (225/45/18), front wheel spacer 15mm and rear wheel spacer 8mm.
There're no brake sys mod except mazdaspeed brake pads and brake lines
For ECU tuing, after previous failure experience with power mod EMS, I'm trying to get a Haltec interceptor.
I did not do tran mod execpt FEED 4.777 final drive.
Off course there're some "dress up" mod

The weather in Taiwan is generally hot, rainy in late spring and some typhoon happened in summer

Atilla

iTrader: (1)

ahh! makes sense now...def going to street tune...thanx for the insight!

R888

Zaku where do u get the Autoexe plug cords, and earthing system, denso plugs?

zaku

I got them through Japanparts website

paulmasoner

iTrader: (1)

woo hoo!! half this thread is speading more "untruths" thats awesome

this thread fails

Phil's 8

iTrader: (3)

How about posting what you feel are "untruths". Personally I can take criticism as I am sure can the other posters. I am always looking to learn and if operating under a misconception, correction is welcome. Sorry I'm not a fan of people that just wish to criticize and not offer a suggestion.

munche187

Cam at Pettit is currently working on a fan control upgrade.
I have an MT 07 with the Pettit S/C street tuned. I have had it for 1500 miles. It's been great I just have one lil bug to work out everyso often in neutral it will cutt off. I think it's just the way Idle was set with the Interceptor X. Cam is going to take a look.

On different note I can tell my tranny gets hot the cup holder gets hot. Sometimes I put my phone in there. When I go to take it out it's hot. What Transmission oil cooler do you guys recommend