Author Topic: 2002 Bugeye (Fun Times)  (Read 2136 times)

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Offline firebane

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Re: 2002 Bugeye (Fun Times)
« Reply #25 on: April 08, 2020, 09:06:00 am »
Car is still going good and work on it when I can but with this weather.. ugh. Hoping it starts warming up a bit and I can do more work and get out and do more base tuning to this thing. Spent a bit of time getting the MAF scaling setup due to the short ram intake. But picked up a stock air box and will be tossing that in and probably have to change that a bit.


Offline firebane

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Re: 2002 Bugeye (Fun Times)
« Reply #26 on: April 25, 2020, 05:41:09 pm »
Today finally got a stock airbox installed and hooked up the boost gauge and found out to get a good reading I moved it from the manifold to the bpv hose.

Going to finish up some wiring and get the afr gauge in and have some fun.

Video:
https://i.imgur.com/FDA4OaAl.mp4


Offline firebane

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Re: 2002 Bugeye (Fun Times)
« Reply #27 on: May 17, 2020, 10:18:05 am »
So finally got sick of the crusty steels with winter tires and found a ok set of OE with ok rubber. While I had the wheels off I discovered more "parts" that I need to figure out lol.



Cobb Part:


Swaybar and endlinks:



Offline jellynuts

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Re: 2002 Bugeye (Fun Times)
« Reply #28 on: May 17, 2020, 02:53:40 pm »


Whoa, I'm so confused.  Impressive that the vacuum goes to 11.

uckfay, Johnny with the back-handed slap. You're clearly the Oracle.

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Offline firebane

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Re: 2002 Bugeye (Fun Times)
« Reply #29 on: May 17, 2020, 03:40:42 pm »
Vacuum at idle will drop to 18-20

Offline jellynuts

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Re: 2002 Bugeye (Fun Times)
« Reply #30 on: May 17, 2020, 03:43:56 pm »
Vacuum at idle will drop to 18-20

Nevermind.  It was a Spinal Tap joke.  Because Marshall.
uckfay, Johnny with the back-handed slap. You're clearly the Oracle.

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Offline firebane

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Re: 2002 Bugeye (Fun Times)
« Reply #31 on: May 26, 2020, 09:12:57 pm »
So tonight was a lesson in frustration and a level in excitement.

Frustration because I'm still having weird TPS issues where it only reads a max voltage of 3.89 volts instead of the 4.5 to 4.7 so I'll be buying a new TPS sensor and see what happens.

Excitement because I always thought I had a boost leak because no matter how much I changed my wastegate duty or target boost levels something seemed off. I decided to take a look at my wastegate and surprisingly it was not adjusted properly and was created a small leak.

This basically meant that even when I said 0% wgdc it could till have a small amount throwing everything off.

Quick little rip to show how much better it'll spool and hold boost now.

https://datazap.me/u/firebane/log-1590547154?log=0&data=5-8&zoom=2012-2169

Offline Dr Beans

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Re: 2002 Bugeye (Fun Times)
« Reply #32 on: May 27, 2020, 09:29:08 am »
Am I reading that right? 13-13.5 AFR at 14 PSI?

Also I'm assuming you are only looking at your TPS voltage readout in your datalogging program? Have you tried bench testing it to see if it's just clocked wrong in the TB and can actual send out the correct signal?

Offline firebane

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Re: 2002 Bugeye (Fun Times)
« Reply #33 on: May 27, 2020, 09:34:11 am »
Am I reading that right? 13-13.5 AFR at 14 PSI?

Also I'm assuming you are only looking at your TPS voltage readout in your datalogging program? Have you tried bench testing it to see if it's just clocked wrong in the TB and can actual send out the correct signal?

Yeah your reading that right lol. I'm not sure accurate it is at this moment though. I took a log this morning and my a/f learned in the idle/cruise range is now -8% so I'm thinking fixing my wastegate has caused a fueling error now or I somehow created a leak somewhere else.

Checked two different throttle bodies with two different TPS sensors and both read the same voltage output. So I checked the voltage right at the throttle body probing wires and same read out as I got through my log software.

Not sure if its normal for Subarus to read so low, or if I somehow have to two bunk throttle bodies or tps sensors..

Offline Dr Beans

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Re: 2002 Bugeye (Fun Times)
« Reply #34 on: May 27, 2020, 09:50:32 am »
I don't know if its the same in the Subaru world, but I've had this issue with Honda's before. Once you take the TPS out and measure it on the bench it's actually able to spit out the 4.5V. It was just clocked wrong in the TP (couldn't fully open or unwind which lead to the low or high readings).

Offline firebane

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Re: 2002 Bugeye (Fun Times)
« Reply #35 on: May 27, 2020, 10:00:09 am »
I don't know if its the same in the Subaru world, but I've had this issue with Honda's before. Once you take the TPS out and measure it on the bench it's actually able to spit out the 4.5V. It was just clocked wrong in the TP (couldn't fully open or unwind which lead to the low or high readings).

If I put the TPS sensors into the harness I could get the 4.5v by manually twisting.. on both TPS sensors.. so technically the sensors are correct. But the second I attach them to the throttle body it won't go past 3.89v

So either the TPS sensors have a ton of play and are way out of spec or the throttle bodies have something funky going on.

Offline firebane

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Re: 2002 Bugeye (Fun Times)
« Reply #36 on: May 28, 2020, 05:24:57 pm »
Recent LTV and a total timing table that seems to keep my car happy. No idea if the total timing is good, bad, crazy or average.



https://i.imgur.com/ZsT7Ale.png