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Welcome me to 500hp club!!! bw s259

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Thanks for the tips! I am still using stock mas. I will be putting the airflow sliders back to zero to see if i can try and bring my fuel trims back inline. :thumb:

Your welcome man. Id def. put the airflow settings back to zero, this will put the fuel trims back inline. The stock mitsubishi maf will automatically do this, if you eventually want to run a maf-t with a gm maf, your going to have to do it manually. Reason being the mitsubishi maf calculates airflow different then a gm maf, but the gm maf will be able to read upward of 4000+hz (650+whp). Also id advise you to probley keep the boost right where its at, as of the moment, reason being on the 2g maf...it starts to drop counts around 3000hz (mafraw), your right on the limit, its actually starting to do it now. Open the log and hit ctrl + Z, highlight/checkmark mafraw, and look at the parts of the log under full boost, see how choppy the mafraw signal is starting to get? It will continue to get worse and worse as the boost gets upped, bad things can stem from this, if it drops alot of counts of airflow, at high rpm it can be very dangerous to the motor. In the future if you plan to up the boost more, id take a look into a gm maf-t setup, it can support alot more then a mitsu maf could ever dream of, and driveability is great. If you decide to ever go that route let me know, I can help you dial it in perfectly. Good luck with the setup!
 
Good numbers through the fwd, now go to the track and make it happen.
 
I told you!!! Congrats... Now I need to go I will be going back for another shot at the title soon. With the new mods.

I really don't think you will have any problems putting down the 600plus with the setup you are putting together! I have a lot of people telling me to upgrade my cams but i like the 264s. I just don't like the fact of having to be in the 6000 to 8500 rpm range to make power , kind of rough on the engine bearings. Just my $.02! I am very happy with the car and like the above post mention gotto get Em to the track. With all the flooding here in Ga its going to be a minute before i hit the track:cool:
 
Congrats, is this on the bolt-on housing? My 18G is goin out soon i believe and i was thinkin of upgrading to either the S256 or S259. how does she do on the street?
 
Congrats, is this on the bolt-on housing? My 18G is goin out soon i believe and i was thinkin of upgrading to either the S256 or S259. how does she do on the street?

Yes this is with the bolt on housing. she does awesome on the street. My main focus was to built a car that is very streetable and at the same time see if i can break 500whp, Mission accomplished. The car is just as streetable as it was with my evo 3 16g. I am not a big fan of the on/off turbo set up! I will say this, the turbo does not like a restrictive exhaust so make sure your exhaust has good flow. my exhaust held me back 85hp. The only thing i Upgraded from the 419hp was obx racing fmi, pte 1200cc injectors, and rebuilt my exhaust to flow more freely this dyno was with no cat and test pipe inplace.
 
cool i got a thermal O2 back exhaust (3") no cat or anything like that. also got a ported exhaust manifold and i would get an O2 housing for an external w/gate. thanks for the extra info, yay for more injectors!!
 
was this dyno done in 3rd or4th gear?

if it was in 4th then that is why the spool is so fast, it would be slower in 3rd gear,

but either way nice numbers!!!!!!
 
cool i got a thermal O2 back exhaust (3") no cat or anything like that. also got a ported exhaust manifold and i would get an O2 housing for an external w/gate. thanks for the extra info, yay for more injectors!!

Oh! you are set!
 
was this dyno done in 3rd or4th gear?

if it was in 4th then that is why the spool is so fast, it would be slower in 3rd gear,

but either way nice numbers!!!!!!

4th gear pull. 3rd just spun the tires.
 
DAMN nice numbers man, I hope I can get my Spyder there. I all ready have a built motor, all the bolt ons and no for a big turbo like you.. ;). Keep up the great work., Hows the torque steer. You must have massive forarms.. LOL
 
DAMN nice numbers man, I hope I can get my Spyder there. I all ready have a built motor, all the bolt ons and no for a big turbo like you.. ;). Keep up the great work., Hows the torque steer. You must have massive forarms.. LOL

LoL! Yeah I am fully satisfied with my current power levels. The car for the first time sinced I've owned it scares me:D. Believe it or not the torque steer is not that bad, the only problem I am having is keeping the tires on the front from wearing so quickly:cool:!
 
OP, what is the AR of the turbine side and is it mitsu flanged or T3 flanged? Also what are the difference between the more commonly found s258 and 259 turbos? Is it the compressor map? Do you have a compressor map for your turbo?

thanks,
dan
 
OP, what is the AR of the turbine side and is it mitsu flanged or T3 flanged? Also what are the difference between the more commonly found s258 and 259 turbos? Is it the compressor map? Do you have a compressor map for your turbo?

thanks,
dan
.55 and it is the mitsu bolt on housing. Yes its mitsu flanged. Here you can find a compressor map of the 256 and 258 turbos.

Bullseye Power Turbos
 
Well it’s been over 2 years since I broke into the 500hp club. Know I think I am ready to move up to the 600hp club. Lots of changes have been made with much disappointments and eventual happiness. But now I think it will happen next week for sure. Most people think it takes money and bam there it is. It not only take money but much patience, time, broken parts here and there, busted knuckles, beer if you work on your own car like me and lots of technical help from the boards. Next week I will now for sure. I will be hitting the dyno march 22.:cool:
 
Nice! Will this be with the Comp 6465 turbo and other mods listed now in your profile?

Profile updated. The only change will be a 2mm bigger, lighter turbine wheel. According to ups turbo will be delivered monday by end of day.
 
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