codrus

FWIW, I'm using the identical-looking-but-sold-by-diyautotune-for-a-lot-more-money GM 3 bar sensor on my car, it's been working great. I've had it since June or so.

I have it wired to EXTMAP, no special conditioning, although I did need to add a +5 output to the db37 on my mslabs ms3.

--Ian

aidandj

iTrader: (5)

Is it a "GM Style" or is it an actual GM sensor.

When you're scoping the abs sensors for me could you do a basic voltage test. 0psi, vacuum, and then boost? If our suction is calibrated correctly I can tell if the sensor is good.

I need 5v out for the oil/fuel pressure anyways, might as well get a line run to the engine bay.

codrus

It's the one DIY auto tune sells. I think it's genuine GM, but I dunno, there are a lot of counterfeits out there.

MAP - GM style 3 Bar MAP Sensor DIYAutoTune.com

This is the calibration I use:



TK derived the custom calibration by hooking up all four sensors (builtin, GM, plus a couple of the mouser ones I bought for measuring back pressure) to the same line, data logging at various MAP values (mityvac is useful for this), and then massaging the data so that they line up. I don't know what the curve-fitting algorithm he used was.

--Ian

aidandj

iTrader: (5)

GM is 0v->1.1 5V->315.5

So close.

codrus

Nominally. They vary a bit. That's the calibration that DIY auto tune says to use on their site, but the custom one works better for my sensor.

--Ian

aidandj

iTrader: (5)

Hmm, interesting.

aidandj

iTrader: (5)

Star Spec ZII or 595rsr.

I'm leaning toward the rsr because its a $150 cheaper. But at the same time I really liked the z1 star specs when I had them.

I'm hung up.

I know @turbofan will say 595RS-R and @curly will say z2's.

Will the z2's last 32% longer than the 595s?

hi_im_sean

iTrader: (3)

rs3 or rival

aidandj

iTrader: (5)

I dislike the RS3 availability. I will get some of those when I get 15x9s.

I only see rival s in 15". I thought those wore like crazy.

hi_im_sean

iTrader: (3)

Are you looking for 14s? Yes they wear quick, we got maybe a season out of ours. The xs lasted almost 2.5 seasons with a shitty alignment and were only a second slower on a 1:15 course.

aidandj

iTrader: (5)

I was looking for rival non s.

I want more than a season.

hi_im_sean

iTrader: (3)

I was talking about the non S, I have 0 experience with the S.

What size tire are you looking for?

I think the forum consensus is the 595 in any case.

aidandj

iTrader: (5)

http://www.tirerack.com/tires/tires....=g-Force+Rival

I don't see a 15" size listed.

codrus

RR

--Ian

hi_im_sean

iTrader: (3)

Not sure what to tell you, I have non-S 15s and I bought them from tire rack...

Maybe with the release of the S, they discontinued the non S in track fitments?

rwyatt365

I think this is the case. It's the "S", or nothing.

FWIW - I have a set of "gently-used" 225/45-15 Rival's (non-S) on 15x8 Konig's that I'll let go for a song (to finance some 15x9's next year). They were only used on the street

aidandj

iTrader: (5)

PM me. But probably not, unless they are the same price as new tires.

aidandj

iTrader: (5)

4" Cutter Knife Rainbow Tip T 304 Weld on Exhaust Muffler 3" Inlet Universal 5 | eBay

Or

Universal JDM 4" N1 Style Blue Burn Tip Stainless Steel Weld on Muffler 3" Inlet | eBay

Which is worse (read better)

turbofan

iTrader: (1)

I positively despise the second one. The first one is super ricey but also kinda cool in a way, how it turns down.

aidandj

iTrader: (5)

Haha. The second one is just like my current one.