blackwrx Member 181 Member For: 20y 3d Posted 07/08/06 03:56 AM Share Posted 07/08/06 03:56 AM Modifications I have so far:APS power pipe with blow off valve2.5 inch exhaust from cat backwalbro fuel pumptuned with a CAPA flash tuner.I have been to see the local work shop who does dyno tuning as my current tune has a problem and the fuel consumption is going up and up.I have been told I would not be able to get over 260 hp at the flywheel but I am fairly positive when my car was tuned before I had 260KW at the wheels.Now I have bigger injectors I would like to get them fitted and get it retuned, but I have been told it is a waste of time as I need a new exhaust either 3 or 3.5 inch to allow me to get any more power out of my car.The question I have is do I need to upgrade my exhaust to make it worth while fitting the injectors / retuning my car? I dont want to go over 300 rwkw.I may need to send my Flash tuner away for a new tune / is this an option as I do not see myself getting back to perth in the near future?Thanks Link to comment Share on other sites More sharing options...
ZAP No boost, no bottle, just my foot on the throttle! Lifetime Members 7,935 Member For: 21y 8d Gender: Male Location: Sydney Posted 07/08/06 03:59 AM Share Posted 07/08/06 03:59 AM The Exhaust is good for 300rwkw.I would check the CAT as it may have melted. If not find a better tuner Link to comment Share on other sites More sharing options...
blackwrx Member 181 Member For: 20y 3d Posted 07/08/06 05:52 AM Author Share Posted 07/08/06 05:52 AM not many tuners in kalgoorlie, and I dont know when I will be able to get it to perth. I think I would be happy with about 300kw. Just need to find someone who will do a tune for me. Link to comment Share on other sites More sharing options...
G6ET8U Playing with Sports Bikes... Silver Donating Members 1,927 Member For: 19y 3m 24d Gender: Male Location: Whistling, GTX. Posted 07/08/06 06:00 AM Share Posted 07/08/06 06:00 AM Has the car now got a single 2.5" exhaust on it?Or is it twin 2.5"?Jack Link to comment Share on other sites More sharing options...
muzza420 Member 412 Member For: 19y 9m Posted 07/08/06 06:15 AM Share Posted 07/08/06 06:15 AM I think the best way is to speak to another tuner and see if they can sort out a solution, Maybe you can send them your box. Now since your near Perth I will recommend Simon from Xtreme Ford Tuning, on this site As Xtremef6.Is the CAT standard factory? Link to comment Share on other sites More sharing options...
blackwrx Member 181 Member For: 20y 3d Posted 07/08/06 07:14 AM Author Share Posted 07/08/06 07:14 AM yep my exhaust is a singli 2.5 inch exhaust with the stabdard cat. Simon tuned my car before and I was very happy with the job he has done, I am not sure if he would like to do a tune for me without roadtesting the car though, but I will ask.Thanks. Link to comment Share on other sites More sharing options...
JimmyXR6T04 Member 1,299 Member For: 19y 8m 2d Location: Canberra Posted 07/08/06 07:37 AM Share Posted 07/08/06 07:37 AM 260hp at the flywheel?? don't go back to that shop that's means they don't expect your car to get more then 193kw at the fly?? it would have that at the wheels standard. Link to comment Share on other sites More sharing options...
JimmyXR6T04 Member 1,299 Member For: 19y 8m 2d Location: Canberra Posted 07/08/06 07:39 AM Share Posted 07/08/06 07:39 AM I'm sure Simon won't mind doing a mail order tune, just ask him. He's provided a few for me, and I just use a local dyno to run the car and check afrs etc, then I email the graphs to Simon so he can check them out and see what needs doing Link to comment Share on other sites More sharing options...
gogo Member of team Kittens Member 609 Member For: 20y 11m 29d Location: Melbourne Posted 07/08/06 07:39 AM Share Posted 07/08/06 07:39 AM yep my exhaust is a singli 2.5 inch exhaust with the stabdard cat. Simon tuned my car before and I was very happy with the job he has done, I am not sure if he would like to do a tune for me without roadtesting the car though, but I will ask.Thanks.←No wonder you can't get much power - put the stock exhaust back on - this is twin 2 1/4 and should flow much better than a single 2.5!!!!If you are replacing the exhaust you need 3.5 minimum (even 3" as our indiicated is going backwards relative to the stock system), or twin 2.5's - standard cat is usually the restriction, but in your case you might have a whole new level of restriction - so to answer your original question, yes IMHO you would be well advised to replace the exhaust before fitting the bigger injectors - otherwise I beleive you are wasting your time.Until you get the stock system (or something that will breath a lot better than a single 2.5) back on you will find it much harder to make good power - this will also stress valve springs and have other ramifications...Best of luck! Ben. Link to comment Share on other sites More sharing options...
gogo Member of team Kittens Member 609 Member For: 20y 11m 29d Location: Melbourne Posted 07/08/06 07:46 AM Share Posted 07/08/06 07:46 AM 260hp at the flywheel?? don't go back to that shop that's means they don't expect your car to get more then 193kw at the fly?? it would have that at the wheels standard.←I expect the exhaust as indicated will be a MAJOR hurdle to making any sort of power - including matching stock power levels...New exhaust time or re-install the stock exhaust with a good cat - this will flow enough for 300rwkw. If you are chasing that sort of figure I would highly advise getting valve springs - I am supprised you have not had major issues with these given your current exhaust... Link to comment Share on other sites More sharing options...
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