Just did some more dyno runs today - 297 wheel HP was my best on 94 octane pump gas - here are my mods so far :

Bigger fmic
samco hose kit
cat test pipe
Pruven axel back 2.5" muffler
S-AFC
HKS EVC V boost controller
Aeromotive fuel pressure reg
Alum radiator

Right now - I think what is holding me back from crfacking into the 300 hp range is the ign timing - I think I need some better engine management if I am going to get the max out of the stock turbo

The good news is that it seems like the fuel pump is ghood for way over 300 hp - and that there is lots of room left in the airflow meter after I bumped up the fuel pressure

 

Al,

What is your HP increase now relative to your initial baseline? How much did the increase cost?

Speedlimit......

 

I started with just 230 wheel hp stock

 

Bigger fmic
samco hose kit
cat test pipe
Pruven axel back 2.5" muffler
S-AFC
HKS EVC V boost controller
Aeromotive fuel pressure reg
Alum radiator


297 WHP??? Can we see a dyno sheet with some fuel ratios. I really see that you spent excessive money on a FMIC. You could have just gotten some standalone with that spent money. Also why did you opt. for a 2.5 axel back?Your numbers would raise significantly, but congrats either way.

 

It cost me $2800 for far for everything - but I did all the instalation myself - got a few things used and got hooked up with some special prices on a few of the items

 

nice numbers... how many miles are on that car...?


you already got that thing ripped apart...

got any sound clips of that exhaust...?

 

I have a dyno sheet - I'll get it posted up by Monday - i need my buddy with a scanner to help me out

The a/f ratio was really FLAT from 4200 to red line 11.7 to 11.8 all the way across - - the SAF2 is really good b/c it has more set points and closer together

"excessive $" on a fmic - actually I think the price is very fair - considering what you get for your money - it included a much bigger power steering fluid cooler and a nice thinline a/c condensor fan in the kit - it was all first rate quality and its the biggest SPERCO core you can fit on the car so I am confortable that this fmic will be sufficent for up to 600 wheel hp - it is much better quality than any JDM stuff I have seen and best part is its made in the good ole USA !

I know of no stand alone that is a plug in - ala AEM - or LINK that is available for our car - but when one is I will be getting one of those also

Why did I opt for the 2.5 " axel back ?? Dyno testing showed it picked up 12 HP over stock on my car and that taking the exhaust off comepletely made NO more HP than the 2.5" axel back - - maybe later at higher HP levels I will need a slightly bigger 3" exhaust - but at this point there is no additional gains going bigger - - - - for comparsion - Norris's 711 wheel hp evo vii only has a 3" system and he says that any larger system on his evo actually looses trq.

 

2400 miles - - (it was on the dyno at 600 miles) - - no sound clips - but it sounds nice - but does not intrude into the interior on the highway and become obnoxious - - and for $249.00 for a full stainless system its a very good value

 

Al,

The EVO stock downpipe is pretty restrictive and a 3" one might give you better benefit that ECU/timing changes. A full 3" exhaust for you would be a better path to 300hp IMHO.

Speedlimit....

 

The pruven guys actually took the entire exhuast OFF thier black EVO and did not pick up even one HP that way

It was strange - b/c with my WRX taking the exhaust off helped the car make much more power - the best exhuast on a WRX was no exhaust or the biggest you could get one there

For some reason - the evo did not really benefit from an exhuast removal

I'd like to see some dyno sheets from some of the vendors who are hawking 3" systems to see what gains if any they claim on such systems

Its interesting that SHIV who has proven to be very reputable is going with a cat back on his stage 0 kit and did not see any gains from taking off the cat

Finally - Pruven still has the stock 2.5" down pipe with their 2.5" axel back on their black evo and it is making over 320 hp at the wheels - - - if they wanted a 3" dp - they could make it in an afternoon - yet they elect to keep the stock one

Just some food for thought !

 

im sure you all noticed that buschur made 330whp on the stock i/c and stock fuel system. That leads me to believe the stock i/c is adequate for moderate power levels. By no means am i saying a bigger i/c isnt needed, i just would have looked at downpipe/full exhaust before the i/c.
you dont waste anytime huh al.
just to correct, it was 345hp.

 

Al, have you played with the knock sensor in the safc2?

 

I'm sure that the stock fmic could be used on any cars going up to and over 500 hp easily wityh no problems - it is a decent core - its just that the big SPERCO core is twice the capacity - caused NO LOSS in spool up what so ever - gave me about 25 extra ft lbs of trq at 4,000 rpm and basically made me more HP and TRQ over the stock one all the way from 1,000 to 7,000 rpms

also - there was no dminishment in "feel" or noticable decrase in throttle response

So basically there was NOT one bad point or loss for the bigger fmic mod - and a very nice gain \

As far as what Busher did or did not do - it is interesting - but its hard to compare his results without knowing the deatails of which dyno he was on - 2wd vs. 4wd - - also - I find his results hard to imagine after seeing what my car is doing - - I am making the same exact trq figure he is claiming - but he says he is making 30 extra HP - resumably the extra 30 hp is comming froim the exhuast - which i find hard to beleive also - - anyway - time will tell about all these questions

The only problem with the mod is that it costs a few $$

 

i doubt the stock i/c would support more than 350hp...

 

Time will tell how much HP the stock one yeilds

Its not how much you can make - - - its how you make it - these SPERCO big cores are very resisitant to heat soak and they really allow you to run the car much leaner and it will resist detonation much better

MY idea is not to try and make the absolute maximum HP I can - but rather to make the HP safely and relaiably

My last car - a 412 wheel HP WRX had the same exact SPERCO core - - it ran as a daily driver every day - day in and day out without a hitch - - and now the engine is still running in another car also as a daily driver - I credit the longivity to the big fmic

I really didn't need the alum racing radiator either - - but come July and Aug when it gets really hot out my EVO will still be able to run hard even in the heavy heat