beaterX, 2.5 turns of the wga

**scheides** · 05-08-2010

Just did this on my new beaterX! 2.5 turns in on the wga and 1/3 down on the MBC yielded this:

Comparator numbers:
http://scheides.com/misc/pics/evox/evoX-wgacrank.JPG

Should have left the MBC alone I guess, peak did go down a tish, but with the mods on the car, 26psi peak is plenty for now:

Lastly, the data, for anyone that cares:
http://scheides.com/misc/pics/evox/E...t-wgacrank.xls

This was done on the same road, same conditions, within an hour of each other. Perfectly flat, started run in 3rd at ~2000rpm and WOT till ~7000.

The car still has the rusty exhaust and stock cat in place. I put in mlomker's used aFe drop-in the other day and decided I should try this next. Arguably worth it

TkrPerformance · 05-08-2010

Very nice.

**mlomker** · 05-08-2010

I think you'd do better with an EBCS than an MBC and fiddling with the other parts, but if it's stuff that you already had lying around then it's good gains for cheap.

**Kracka** · 05-08-2010

Nothing beats a MBC for ease of use and reliability.

**mlomker** · 05-08-2010

Quote:

Originally Posted by Kracka

Nothing beats a MBC for ease of use and reliability.

I've never heard of an EBCS user having overboost issues during temperature changes...that's an MBC problem. If the ECU is great at managing that sort of thing then I don't see the point in remaining old-school.

**scheides** · 05-08-2010

Quote:

Originally Posted by mlomker

I've never heard of an EBCS user having overboost issues during temperature changes.

I'm telling you now, it is an issue, I promise

Maybe not for you, but it happens. Weather can affect MBC's as well, just not as much. A lot of guys mount their MBC's (and BCS solenoids) near their radiators to try and cut down on the variances weather can cause.

Either way, this mod isn't about MBC or BCS, its about the turbo flowing more by keeping the wastegate closed tighter; it's not holding a ton more boost anywhere, but making more power.

**Kracka** · 05-08-2010

Quote:

Originally Posted by mlomker

I've never heard of an EBCS user having overboost issues during temperature changes...that's an MBC problem. If the ECU is great at managing that sort of thing then I don't see the point in remaining old-school.

Have you actually tried all the different forms of boost control or just read about the online? I have. I haven't remained old school, I've gone back to old school after giving the newer/fancier/more expensive methods a chance. With my MBC mounted to the radiator fan shroud I see 1-2psi variance max due to weather changes; I saw far more than using using ECU-controlled boost. My car is also more responsive and boost hits harder/faster with a MBC. Put one on your car as a test sometime and compare the boost curve, I think you'll be quite surprised.

**mlomker** · 05-08-2010

Quote:

Originally Posted by Kracka

Put one on your car as a test sometime and compare the boost curve, I think you'll be quite surprised.

I look forward to doing such experimentation once the bigger mods wind down.

I'll also say that I only read the X forums and have never pretended to know shit about 8/9's. You'll be basted if you try to argue in favor of an MBC on a X forum. The X has a different ECU and I'm sure scheides will uncover a lot of interesting things as he continues exploring...

**Kracka** · 05-08-2010

Quote:

Originally Posted by mlomker

You'll be basted if you try to argue in favor of an MBC on a X forum.

Scary, a bunch of newbs regurgitating info on the internet

My guess is most of those guys only read something somewhere and have no actual real-world experience (must like yourself yet you still make claims regarding which is better).

With more experience you'll learn there is quite a difference between what you read online and reality.

**scheides** · 05-08-2010

Quote:

Originally Posted by mlomker

I'll also say that I only read the X forums...

Oh yea, I own one of those now, maybe I should check that site out. :P

**scheides** · 05-08-2010

Yup sticking with the mbc for now. I'll play with the ecu boost once tephra gets some of his hacks on this platform. The mbc was already on the car and the wga crank cost me 20 mins

Matt D. · 05-08-2010

I discussed this with Kracka not too long ago, but Sport Compact Car did a test between the popular MBCs and EBCs at the time (2004 or 2005?) as to how they handled boost onset (spiking) and how they held boost throughout the RPM range. The MBCs outperformed the EBCs by having the smallest spikes at boost onset and holding boost better to redline. Granted, this was a few years ago, but the general idea between the two devices is entirely the same.

rose0529 · 05-08-2010

Nice work Scheides! Gotta like making more power on a little less boost! Hows having MIVEC treating ya?

tpunx99GSX · 05-08-2010

I have used an Apexi AVC-R, Shanes MBC, and a Forge MBC, by far the best one i have used has been Shanes. The AVCR sucked ass in my opinion. EBCS FTL.
Anyways, good shit Scheides keep it coming i expect to see 500 AWHP at dyno day. or you are no longer the site admin and get your post count stricken down to 1.

simulatedwood · 05-08-2010

Scheides,
Awesome work! MBC, EBC, Boost control, smoosh control, the boost looks excellent what ever it is.
Mine is attached for comparison purposes this is bone stock tune vs RS Motors tune, yours looks great in comparison for the boost spike.

**scheides** · 05-09-2010

Quote:

Originally Posted by simulatedwood

Scheides,
Awesome work! MBC, EBC, Boost control, smoosh control, the boost looks excellent what ever it is.
Mine is attached for comparison purposes this is bone stock tune vs RS Motors tune, yours looks great in comparison for the boost spike.

And you with your 300whp factory freak gah! Stop making me jealous! When I actually get a full tune on this thing, we'll see what it'll do. For now, its a good solid basemap on a car that needs TLC all around, including under the hood

Kevin 1G Drummer · 05-09-2010

What is so magical about a X that it needs an EBC?

Swifty1638 · 05-09-2010

Quote:

Originally Posted by Kevin 1G Drummer

What is so magical about a X that it needs an EBC?

The same kinda magic that requires a OEM BOV from Japan yo!

I've USED, INSTALLED, and messed with all boost controllers, except ECU-controlled boost control solenoids, like AEM EMS can use. From my experience, MBC's are the most straight forward, easiest installed, easiest set-up, most reliable (depending which brand you get) and best controlling of all boost controllers. Electronic ones are only as good as the software that drives them, and as we have all seen, sometimes..the shit just doesn't work.

**scheides** · 05-09-2010

LOL this thread kinda 'sploded into a whole secondary discussion about mbc's vs ebc's...end of the day (as I said before) this mod would work with either. People are obviously pretty passionate about which form of boost control is 'better' and and of the day, it is 100% up to how well the system you have works with the setup you have, end of story. I have played with MBC's and EBC's on dsms, evos, vw's, audis, and porsches, and guess what: you use what works best for YOU on your car.

I'll play with the ecu-boost on this thing soon enough, don't worry

FattyBoomBatty · 05-09-2010

Ah, it reminds me of the good old days of last month. Tempers flared, rank was pulled and people got burned.

I know it's about the furthest mitsu from an X (save for being the OG donkey kong of mitsus), but my boost is controlled with a greddy profect b-spec 2, and it's really cool when the gain isn't set too high, aha.