Non USDM GD3 MT with KWSC kit. Help please

I am new in this forum and I hope some one could help me with the following issues:

I am located in China and own a 07 GD3. I read the KWSC(the high boost kit with Hondata ECU reflash) kit from the website of kraftwerksusa.com. I really want to have this kit to setup my GD3.

But before I purchase this kit, I hope someone can help me to understand something:
1. My China made 07 GD3 is with compress ratio of 10.1:1 (I notice the USDM fit is 10.5:1). I think this maybe because the quality of the gasoline. I alway add 97# for my GD3. I heard someone mentioned that the 97# petrol is something like the 93# or 91# in USA.
2. the spec of the engine is: Vtec L15A 79KW/5800rpm, 143Nm/4800rpm

I know that it is hard to know if the KWSC kit can be installed on my China GD3 because I think no one before tried this.(maybe someone did but I just do not know).

What I want to know is that, if I install the KWSC kit and reflash the ECU by Hondata, then will it is harmfull to my engine because of the lower compress ratio(10.1:1)? Any other problems?

I will choose to install the KWSC kit if it is not harmful to my engine even I know the power gained may not be as much as the USDM GD3 with this kit.

Any information will be appreciated. And pls excuse my English as well.

 

that small of a compression difference isnt going to hurt anything.

 

You cannot get the reflash from Hondata because it is only for US models. Your ECU cannot be reflashed.

 

Thank you.
Are you sure the ECU can not be reflashed, as I think it is just a software, there should be no reason for Hondata can not reflash it if they can reflash the US model's ECU.

I like to have this KWSC kit very much. So any helps will be appreciated vry much.

 

Thank you bro.

Your inforamation is very useful for me to understand something.

I saw your signature with many ECU tunings. I guess you should be an agent for all kind of ECU tuning softwares/hardwares.

Spunkster mentioned that my China GD3 ECU cannot be reflashed. I just hope it is not true. So with this little hope, can you also confirm this:China model GD3's ECU cannot be reflashed? I do believe Spunkster and you are experts on ECU tunings. I just hope that my ECU could be reflashed.

By the way, do you know anyway to 'remote tune' my GD3? Sort of I try to download my data and email to you then you tune the data and I upload to my ECU. Just like some European car tunes. How much would that cost approx?

Thank you again for your time.

 

You wrote that the USDM has 10.5:1. This is wrong. The JDM:
http://www.honda.co.jp/auto-archive/...ata/index.html

and the USDM have both 10.4:1:
http://www.honda.com/newsandviews/article.aspx?id=3453

10.5 is the ratio of the 2nd gen

But why do you have a different compression ratio? Do you have a different head or simpel a different head gasket? Any official technical details on a chinese honda website?

I've tried Honda China, but there aren't details about the L15A to find:
http://www.google.com/search?q=site%3Ahonda.com.cn+l15a

Are you really sure that you are having 10.1? Because 10.1 seems to be only stated on websites writing about turbo pistons:
http://www.baidu.com/s?bs=gd3+l15a&f=8&wd=gd3+l15a+10.1

And this user wrote 10.4:
http://bbs.pcauto.com.cn/topic-2341685.html

Do you know your ECU number or do you have a similar website like hondapartsnow.com to lookup the different ECUs? I did a little bit research on all available L15A ECUs here but don't know the chinese numbers by now:
http://www.maxrev.de/welches-steuerg...or-t156233.htm

 

I'm not familiar with these ECU's/chassis, but if the China ECU isn't reflashable possibly you could install a USDM ECU and reflash that??

 

1. Yes, you are right, the JDM and USDM L15A for GD3 is 10.4:1
2. I am sure our China verion L15A MT is with 10.1:1
I think the reason for China Version L15A MT to have 10.1:1 compress ratio is because of the quality of the gasoline. Some models of cars which imported to China would change the compress ratio of the engine to suit the gasoline quality in China.
3. The post in the website of 'bbs.pcauto.com.cn' is talking about the GE8 L15A1, the China verion GE8 L15A1 is 10.4:1
4. There is no data in Honda China Official website. I do not find either.
5. I am sorry that so far as I know, we do not have a spcial website in China only for ECUs. I got all the information from my local Honda Dealer as I have a friend working there.

Thank you bro for taking so much time to help me. Really appreciate it.

For the L15A MT ECU, before I source for you I need to mention something. The China Version GD3 L15A does not have the EGR(Exhaust gas recirculation ) system. But I kown the JDM and USDM version are with the EGR system for exhaust control purpose. I am not sure if the China Verion L15A MT ECU without the EGR control can work on your Europe version L15A or not.

 

Yes, this would be a good idea.

No I am pretty clear that the low compress ratio would affect to much.
But when Mgutt asked me about the China Version ECU. I noticed that on China version L15A, we dont have EGR system. I am not sure if this would affect the overall functions.
If not, then I could use the KWSC kit and Mgutt could also try to use the China Version L15A MT ECU.

 

Thank you.
I was thinking that to get a USDM ECU to replace my Chinese version ECU, but since the compress ratio is different(USDM is 10.4:1 and the Chinese version is 10.1:1), so I was thinking that the program in the ECU might be different, and I am not sure if my Chinese version engine would work or not with the USDM ECU.