Hi folks,

After a hiatus from the Evo world, I've gotten back thru a X GSR just recently. I've had a V, VIII and a X GSR before.

I've just installed a HKS intake, HKS Legamax system and a custom tune (1.3 bar = 19 psi at 11.8 AFR) and have only gotten 250WHP (+25 to 30 over stock). Conditions were I drive are - 91 octane, 90 to 95 degree's F, very humid. These are the reasons my tuner insists on not going over 20 psi boost. He's said I can get +30 WHP easily with a more free flow exhaust but I HATE drone.

So how can I get plus 30 to 50 WHP given these factors?

Thanks guys.

 

take out the cat to start maybe intercooler and piping

 

Get an exhaust that is not loud.. You won't get much droning. Try either the ETS duals or the "Butcher" (as I like to call them) quite exhaust. Also try getting a high flow filter? If you don't have one already...

 

In the philippines, cant you get like 95+ octane? I saw it at a pump when i was there.

 

Get a 4.0" intercooler we gained 22whp over stock with no tuning! We have them on sale right now as well if you visit our site.

Thanks!

Michael

 

from the philippines? good... remove the cat and get a test pipe.. and yes get a better ic..back there it is very humid..and it could get really hot...

i'm not sure what is the conversion of the octane rating there..petron blaze is 96octane..your tuner is a bit on the safe side..i guess you could boost it at around 23-24 psi with blaze..

 

o2 housing Downpipe, test pipe, UICP,LICP, and Intercooler will get you there!

 

Sheesh, 19psi is less than stock.

 

^^I was thinking that same thing when I read that.. lol

 

If it's measured like they do in the USA, then it's 91 octane.

 

Ho tonyboy. No cat, got an HKS air filter and just put a 5Zigen exhaust w/c seems a bit perkier than the HKS Legamax.

Petron Blaze if measured using similar methods in the USA is 91 octane. Thanks dude.

 

BigT, Clarification. My car's boost peaked at 20 to 22 psi. 20 psi is what my tuner refers to as 'sustained peak boost'.

 

PM sent Michael. Thanks!

 

Maybe look for another tuner, 19 psi is super low. Assuming your 91 is the same in the States, you could easily push a few more psi and still be well on the safe side.

 

Pre, that doesn't make a lot of sense... you installed an HKS intake & exhaust, plus a tune and you only gained 25-30whp over stock? If you check out the tuning forums, there are a LOT of 100% stock Xs that gained at least 55whp JUST with a tune (also running 91oct here in california, check out GST's tuned stock X dyno charts), pushing 25psi peak boost. Are you guys using ECUflash and tactrix cables there too? I've been using NJ's freebie tune (slightly modded) for several months now with great success... I peak over 23psi (100% stock), haven't dynoed the car yet... but I'm guessing I gained at least 40whp vs. stock. If you want, I can PM you the thread so you can check the maps out.

With an intake+catless 3" exhaust and a proper tune, you should be able to gain ~80whp over stock. If you have a wideband and a tactrix cable, you can do an email tune with NJ or GST just by showing them your logs... PM GST or nj1266.

-edit- bah I forgot the humidity over there, but is it that big of an impact? you are also at sea level (Manila?)... bah I guess your tuner might be right about not pushing the boost levels for absolute safety, but consult with some of the tuners here see what they think. Florida has high humidity also (similar to Pinas), and tuners over there are pushing very high boost levels (see TTP Engineering dyno charts).