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EVO III GS-T Finally "done" and dyno'd... Nobody is knocking ! ?

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You said your 16g dies off at redline.

I have a FP EvoIII Big16g fully ported with 3" EvoIII o2 fully ported, and it hold 27lbs strong at the track all the way too 7300k... its a awesome turbo for $500
 
andymoraitis said:
Jaraxle,

It's no trouble and I'm glad we could all help out in some way. I'm kind of a strange bird in that all of my A/F maps and timing are controlled by the chip. I don't have an AFC and will likely never add one. If you have plans to always run pump gas, then you won't need one either, but you can still hang on to it for fine tuning. If you have Jeff run the A/F maps for you, like I recommend below, I'd zero out the AFC and see how she reacts. On a 10.5:1 map, I had soot everywhere as well. Going leaner on the maps certainly helped with this and I don't see why it wouldn't help you as well.

At the moment, the temps are warm here so I mix a 60/40 ratio of pump and 110. At 22 psi and 23 degrees of advance, I only see 3 counts of knock at the top of 3rd, which is right where I want to be. I just tried this yesterday and it works much better than the octane booster I was using since the leaded gas creates a slower burning flame front.

Just to get myself up to date, I looked for injectors in your profile, but didn't see any. If they're larger than stock, I would have Jeff compensate for those, change the A/F maps to 11.5:1 and take your timing to 19 degrees. In the presence of adequate advance, boost will make more horsepower than timing. In my case, where I mix pump and 110, I can have strong boost and timing and get the best of both worlds. If owned your GST and was sending Jeff specs, this is what I'd e-mail to him:

1999 GST M/T
2G MAF
950 RPM Idle
No Fuel Cut
Octane Reset
11.5:1 A/F
19 Degrees Advance
Knock Sum Boost Gauge
Injector Compensation (based on size and brand, but you need 650's on an EVO III)

With your current parts, assuming those injectors are in there, there's no reason you shouldn't be able to handle 20-22 psi on pump, but tread carefully and log it just to be sure. One thing I would definitely be cautious of is that ECU wire. I would really have that checked out by a reputable tuning shop to make sure that the splice will allow the ECU to see knock. I don't think I need to tell you the ramifications if it isn't registerting.

As far as getting in touch with Jeff, he was on vacation for a few days. Drop him a line at [email protected] and he'll be sure to get you going fairly quickly with an upgrade.

Let me know if that makes sense,

Andy

Andy, I agree with all you posted here. However, I must add that getting the knock sum boost gauge will do no good. I only say this because I went to Jeff for my chip also, and the gauge just doesn't work. I emailed him about this, and he told me that he has often gotten emails about the knock sum boost gauge not working on 2Gs. Now if there is something new he's done recently, then I'm not aware of this.

Just F.Y.I
 
GSntncT said:
Andy, I agree with all you posted here. However, I must add that getting the knock sum boost gauge will do no good. I only say this because I went to Jeff for my chip also, and the gauge just doesn't work. I emailed him about this, and he told me that he has often gotten emails about the knock sum boost gauge not working on 2Gs. Now if there is something new he's done recently, then I'm not aware of this.

Just F.Y.I

That's funny because mine works perfectly. I've run close to 20 chips, all with this feature and it worked every time.
 
andymoraitis said:
That's funny because mine works perfectly. I've run close to 20 chips, all with this feature and it worked every time.

Yeah, I gathered that from your earlier post. That's sweet for you though! :thumb:

Wish I knew why it doesn't work for my car. :(
 
Just an update on this I guess. I did put in a knew knock sensor, and dieletric grease on the connection.
I get knock all right now ! I was getting bad timing (12deg) and a high knock gauge report on the dyno.
In this post I concluded it was either the egr causing carbon, or bad afc-II setup causing rich carbon prone events.
http://www.dsmtuners.com/forums/showthread.php?t=223236
I added water injection, and kissed the knock good bye. Haven't tested if it just needed a steam cleaning. I should do a 3rd gear pull with the water injection off, and see if the knock comes back.
Anyhow, with the knock gauge verified as working, and now the knock gone (16deg at 6k). It's time to turn up the timing !
I refuse to run more than 19psi. That's why I forced myself to install a 20psi gauge.

-Jaraxle
 
Hey jaraxle if it makes you feel a little bit better, i have a similar setup to yours minus the turbo. Currently im running a 2g mas, fic 650's, afc, 272/272 cams on 14b running 20psi....on 16 degrees of timing in the blistering florida heat i saw 0 counts of knock at WOT on my 1g, granted im not flowing as much lb/min as you are...just something to think about (this was also on an 11.1 AFR). I have ran 11.0-11.2 AFR's also with 18 degrees of timing 20psi also with 0 counts of knock. I would like to keep upping boost + timing, but my motor has 145k on it i dont want to risk a head gasket. Andy also in your post, i read you used a mix of toulene + pump gas if i read right...which would compensate for 110oct or very similar...Is there a formula you use to add the correct amount? Where do you pick up toulene from (hardware store)? It would be very benefical if you would tell us some of your secrets LOL thanx in advance.
 
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