I had my car tuned in December (freezing out) and the car ran INCREDIBLY. Well since then, I've added a 3" downpipe and test pipe. Needless to say now that it's warm out and with a full exhaust, the car runs rich and I get some backfiring on decel. I have an AMS intercooler and lower pipe on the way. I don't know yet if I have the money for a tune, I might have to wait a month or so since I also just ordered full suspension and a bunch of other stuff.

I should be fine if I throw the AMS front mount on right? I'm thinking I'll wait to add the lower pipe and the other major mods until I can get the tune but just for now, opinions on how the car will run as is + the ic? Thanks!

 

You'll be fine if at stock boost. I had a full exhaust and the same intercooler/LICP. My stock boost was right around 19psi. I also had a wideband and the AF's were in the mid 10's. You will want a tune tho, believe me.

 

I'm running 19-21psi. Since the cars running rich because it's tuned for cold temps, I'm wondering if the ic will compensate by putting colder air back into the motor. Maybe it'll somewhat even out?

 

I'm sure you know already, but you typically want to retune whenever you change something that effects air flow. You'll be fine but a tune is always recommended

 

your fine for some time, i wouldnt be in WOT a lot tho imo.
its funny you say u dont have money for a tune but u just bought full suspension and bunch of other stuff :P

 

Your cars running rich now because of the test pipe, thus the cause of your backfires, once you put the intercooler on will it run? yea it will, will it run good? probably, but theres a good chance it could cause issues you wot too much with it. If your gonna use this car a lot, at the very least whoever tuned it, id install the intercooler take it to him, have him go on a road test with you, do some wot datalogs, maybe not retune you but at least verify your not knocking throughout the rpm range, and that your afrs didnt change much from the exhaust and ic changes. Youd be suprised what an ic change can due to effect the afr. Why buy suspension if you could possibly damage your engine??

 

Maybe you should only buy what you can truly afford. The cost of a retune should always be factored in when adding more parts. That's an awful lot of stuff to be adding to an already tuned car, and considering the cost of a new engine, that's quite the gamble you're taking.

 

Thanks for the advice. I have knock sensor set to the cel slow flash at 3 counts and fast at 6+counts. Very rare for me to get knock. I do have money for a tune but I still need injectors rail and double or tripple Exedy. That's why I'm trying to hold off on the tune for another month or so, there's no way my Exedy single will hold all the power. I like to do everything at once, I don't have a problem waiting I just figured I could at least put the ic on. And my suspension was shot I had to give it the overhaul.

 

I didnt know the car was already tuned. I'd probably just wait then and put it on when you can get the tune adjusted. It wont be much, but its always better to be safe obviously.

 

^I made an appointment for a tune next week Thursday, I just really hope my clutch will hold. My mods are-
9 turbo
Mivec
255 pump
full 3"tbe
AMS IC+upper and lower pipe
Hallman mbc
cone filter
The clutch has about 30k miles on it and maybe 5-7 launches. I broke it in really good and I don't slip my clutch much at all I've been pretty gentle on it.

When I get the new clutch I will also be adding cams, studs, injectors, rail, cop and intake mani.

I'm basically just wondering if I get a tune now on my current parts list, do you guys think the single clutch will hold up? The last tune I got, I didn't have the exhaust or IC+pipes and I made 308 on Innovative's mustang dyno. I don't know how far I can push this clutch I'm on now...

 

it amazes me how everyone thinks they need a twin disk with boltons, im on the stock clutch with my fp green at 28lbs, no slipping at all. back to the orig topic, do you need a tune for the front mount? no but if your that worried about it, dont put it on yet, wait untill you put everything else on too then tune it.

 

:Facepalm: And you wonder why I flame you on local buffalo forums. It's a good thing you really didn't try to buy a brand new X MR. You'd be scraping pennies for a trans fluid change. Best of luck to you sir haha

 

Nope, car will explode as soon as you turn the key ;-)

Just kidding. I rode around on almost the exact same setup with no tune for months. You'll be fine.

 

^ Same here, almost identical mods. No problems at all other than running rich with stock tune. I got a very conservative tune last summer at 23psi low to mid 11 AFR's, and the car was putting down 315whp in the dead summer heat. I cant say enough how much a tune really helps this car.

Cheers

 

DouBle or triple exedy? Ur on a stock IX turbo and can't be making much more than 380-400 hp/tq probably quite a bit less if ur on pump gas.... So as long as ur single exedy has some disc left it should hold just fine. A twin will probably shift nicer and what not, but overkill on a stock turbo setup.... I noticed when I added my fmic the afr's got a tad leaner (as in like 11.2 to 11.5) , but it was also colder than when we tuned it originally. I just drove it easy for about a week since we were switching it over to e85 and retuning anyway. As long as u keep an eye on ur a/f and knock which it sounds like u do I see no need for a mandatory tune. Obviously performance wise u won't be getting the full potential of the modification, but safety wise u sound like u have a good handle on what to keep an eye on.