I was checking out hopup racing and I found where JET has an upgrade Kit for our 8..... Any thoughts anyone?

 

http://www.jetchip.com/purchase.asp?...478&part=65003

Nice price $500 with virtually no further info...uuuummm

What they say they do..pretty nifty if they actually re-program the thing as no one else has been able to readily do this at least not with having the car as each car varies a lot apparently and one would think only custom tuning would (really) work...

"JET Performance Import Computer Upgrade Package





The JET Performance Import Computer Upgrade Package is the solution to performance tuning import and domestic sport compact vehicles. Import computers do not have computer chips that are easily removed, making it necessary for JET engineers to either reprogram the vehicle’s existing chip or remove and replace the chip by desoldering it from the circuit board. The kit provides you with all the materials required to safely send your vehicle computer to JET’s lab for a high performance software upgrade. Once we receive your ECU it will be programmed according to the information you provide on the vehicle specification sheet to optimize performance and mileage to match your specific modifications. JET's exclusive Dynamic Spectrum Tuning provides optimal performance across the entire power band-not just at full throttle. Programming includes extensive modification to air/fuel ratios, ignition advance and boost pressures for turbo applications. "

 

I wouldnt buy it unless I know what its gonna do...what makes them able to flash the ECU when no-one else, not even the JDM tuner companys or RB can crack the ECU?

500 bucks is the price of an emanage or a good deal of the cost of the x-interceptor...those are programable, these arnt.

 

Its listed as 360ish on hopupracing.com

 

Weird - tell zoom44 to check it out.

 

looks like they are doing what Astra does which is adding a chip or resitorsor something to the board and tuning thru that. i dont completly understand but its not just flashign they are altering the board somehow. it seems alot like emanage type tuning

 

last i checked most of the JDM tuners have chips for our car and Astra racing has done it. Just because RB hasn't, doesn't mean it can not be done

 

How would this chip affect NA inter-X?

 

Like if i decide to go with inter-x later on down the road

 

I wouldn't buy this product. They sell alot of these "ECU" boxes which appear to be one size fits all and I doubt they did the real research to see if and how well it works with our cars.

The RX8 computer, save some exotic cars, may be the most advanced ECU on the market. It takes some real research to get a ECU solution that will acutally allow you to modify the stock AFR and timing settings without the car fighting back. You'd have better luck with the emanage ultimate.

 

JET is crap. Their performance upgardes are only partially documented in domestic vehicles, and they are meager at that.

I have yet to see a worthwhile JET module for an import vehicle.

 

It says 11 to 13 hp increase not bad for 300.00

 

And if you got 13 hp, I would give you $300 (only thing is if you don't get 13hp then you give me $300 ). I was looking at this for my previous Mustang GT, but it got mixed reviews on the Mustang boards. I would guess that this type of "one size fits all" type chip would gain little, if any hp. Like Canzoomer untuned. Unfortunately, our ECU & the voltage irregularities in our MAF's would make this a near useless product.

 

I was speaking out of what i have read, there are quite a few companys that have modified the ECU, or hardwired it to take a new map, or reprogram it. I am saying that i dont think anyone has cracked the ECU in a way that you can just flash a new map to it. Only the mazda maps will do that, the ECU wont just accept new programing, unless you get in there and hardwire things in or bypass systems.

 

well they have. open the flash in hex figure out what is what make changes to the data in hex then flash that to the pcm. no hardware hacks. but you are correct that it is still a mazda piece of software just adjusted. that is what RB has had to go thru. They can change a number of things so far but havent had the time to make a complete "map" . you can imagine what slogging thruthe code is like. there is someone else workign on it as well. they may have to go thru the same process but are hopefully getting some needed assistance from another source. actually multiple sources

 

astra racing is running their supercharged cars on the factory ecu with reprogrammed maps... it can be done and has been done

 

but they mess with the chip- they are not just flashing a map

 

Uh, JDM tuners [b]DO[\b] appear to be reflashing the ECU and have been for quite some time now. RE Amemiya, Knight Sport, RMagic, etc. all do the same thing... ask you to send them your ECU and they reflash it and send it back to you if you are unable to bring your whole car to the shop for them to tune.

 

Um... didn't RG say in another thread that the RX-8's drive-by-wire throttle and ECU are the same or very similar to that used by Ford in the 2005 Mustang GT (which is similar to the original application in the F-150 pickups). I think this ECu is not the most advanced on the market, rather it is representative of where all the automakers are going. Anyway, you want to reflash your ECU? IF the hardware is all the same or very closely related, then why not petition a couple of the Ford tuners to take a look at it for you... SCT is located in longwood, FL. Anyone in Orlando interested in talking to them about this?

 

rg was wrong :D the ecu in the 2005 mustang uses a ford silver oak style pcm which is built by motorola on powerpc chips.

the rx-8 uses a version of the ford "blackoak" style pcm and it is built by denso with completly different chips.

the drive by wire throttles maybe similar or even the same one but that hasnt anything to do with which pcm is doing the controlling.

someone please show me a japanese vendor that is not doing something to alter the pcm in order to write maps to it. i would like to seee it but i believe they are all doing a version of what astra is doing. which i believe would make it impossible for Mazda to flash your car in the future if any bugs were discovered in the code which need to be rectified.

 

interestingly- the mazda6 tho built along side the mustang uses a denso pcm

 

Good info source on the pcm! I was curious about that myself.

I do find it odd that Ford didn't just implement the same one across all lines as it seemingly does the same stuff... ABS, TCS, drive-by-wire throttle, AFR adjust, knock retard, etc. Especially considering the widespread use of power pc chips and their floating-point processing power.... then combined with economies of scale... it almost seems stupid to use different ECU's, especially since the Mustang and 6 are built at the same factory as you mentioned... I suppose they had some good reason for doing so.

Anyway, this still doesn't mean it is impossible to do. The Ford ECU has been cracked, the Subie ECU has been cracked (from what I read on a forum)...

As far as the JDM tuners go... you may be right Zoom, but I can find no evidence to support your claims.

RMagic http://www.rmagic.net/catalog_all/pd..._catalog_2.pdf
ECU品番とSUB品番がありますが､データの書き換え時に必要なのはECU品番の最初の4文字だけです｡ これだけでMT型式もイモビの有無もわかります｡
★通信販売は確認済み品番であれば即日返送が可能です｡ それ以外の品番は2～3日後の発送になります｡
★ご購入後､再度メーカーのアップデートがあった場合､弊社にてデータの再インストールを無料で致します｡ （その際の送料はお客様のご負担になります｡）

ECU hinban to SUB hinban ga arimasuga, de-ta no kakikaetoki ni hitsuyou na no ha ECU hinban no saisho no 4 moji dake desu. kore dake de MT keishiki mp imobi no umu mo wakarimasu.
-tsuushinn hanbai ha kakunin zumi hinban de areba, sokujitsu hensou ga kanou desu. Sore igai no hinban ha 2-3 nichi go no hassou ni narimasu.
- Gokounyuu go , saido me-ka- no appude-to ga atta baai, heisha nite de-ta no saiinsuto-ru wo muryou de itashimasu. (So no sai no souryou ha okyakusama no gofutan ni narumasu.)

Basically it says that they use the numbers on the label on the CPU to tell which model car yours comes from... if it is manual trans or if it has immobilizar or not. In the even of a reflash by Mazda, it will be necessary to reflash the ECU. They'll do it for free, but you have to pay for the shipping.

 

I wouldn't put it past some companies to hold your computer for a day and then just ship it back to you, honestly how can you tell if a company like JET did anything to it or not, a nice profit for sure