04 STi 360whp/370whtq OG FP Green + Meth

[Tgui]

Well, I finally had a dyno day to attend, but made myself promise not to work on the car until grad finals were over. Of course this meant I had the night before the dyno day to tune my setup Even worse, the night before I found a meth leak, so the day of (morning) I had to relocate and fix my meth kit. I *JUST* made it in time to the dyno day.

Cheap Setup, 04 STi
- Fujitsubo EL headers - used
- APS cast UP - used
- OG FP Green 7cm 2.4'' turbo used, (for cheap, DOM 3 weenies are dumping these )
- AEM CAI- used, filter cleaned
- Gimmick inlet - new
- APS TMIC - used
- Helix CATTED DP - new
- Borla Hush 3'' cat back - new
- DW 720 CC injectors - new
- Hallman MBC, Prodive EBCS and Labonte BBK-20 all working together to control boost. Don't ask, I don't have the energy to explain.

Meth:
- TMIC Tank used in trunk
- Devils own pump in wiper tray
- Labonte IFS-10 in wiper tray
- 10 GPH nozzle
- 16 PSI checkvalve
- Boost switch set at 2psi, meh.
- 50/50 water & meth.
- misc

Dyno: DYNOJET
- 23 PSI taper to I think about 19.5, had issues holding boost.
- 12:1 AFR until 6k RPM and taper to 10.5:1 redline.
- 95F in the shop . In the winter the car feels far faster. Ohhh well.
- Sunoco 93 octane
- UTEC SD, no MAF fueling

Run 1: Meth + a couple degrees added for fun. Note, boost tapered a little and AFRs at the end were 10.5's. Had I had the time, I'd target 11.8's at redline and probably would have picked up a good bit of HP. 29 degrees redline. RPM pickup failed a little. Note the meth kicking in

Run 2: Base meth run. 26 degrees timing at redline, 17 degrees peak torque. From run #1, only 7whp/tq was picked up with added timing. I've since brought the tune back down to 26 degrees.

Run 3: This was my old stage 2 UTEC map. Obviously before I knew how to tune for torque and before OS was available for AVCS tuning. 3+ years ago I might add

Run 4: Same as above I think.

Note that stock STis do about 240/240 at the wheels on this dyno.



There are some deficiencies in my meth tune. First off I've already corrected the rich 10.5:1 taper at redline. The other issue is that I have an 11psi wastegate spring, I plan to upgrade this to a 20 psi version and with this hope to peak at 26 psi and taper to 23 psi. I'm betting I could just lick 400whp & 400whtq on this dyno with the above done.

Overall for a tune the night before, I'd say things turned out well. Dan @ MachV was impressed with how safe/smooth the tune was. This was great to hear as I tune in my own little bubble.

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[Tgui]

Found a datalog from the first run listed (run file 008) 4th Gear. See where the meth kicked in hard? Good spool for an older turbo. 18 PSI by 3400 RPM.

PEDAL	LOAD	RPM	FBKC	FLKC	IAM	TXSKC	TXSLD	TXSPSI	WBAFR
13.73	0.81	2029	0	0	1	0	0	-5.5	14.53
16.47	0.84	2058	0	0	1	0	0	-5.7	14.58
22.75	0.95	2074	0	0	1	0	0	-4.7	14.7
53.33	1.3	2103	0	0	1	0	10	-3.2	14.83
75.29	1.39	2129	0	0	1	0	10	-0.2	14.78
100	1.41	2184	0	0	1	0	10	0	14.42
100	1.44	2225	0	0	1	0	10	0.4	13.81
100	1.45	2281	0	0	1	0	10	0.6	13.31
100	1.47	2295	0	0	1	0	10	1.1	13.14
100	1.49	2338	0	0	1	0	10	1.3	13.14
100	1.52	2405	0	0	1	0	10	1.5	13.17
100	1.54	2452	0	0	1	0	20	2.3	13.06
100	1.59	2482	0	0	1	0	20	2.7	12.37
100	1.64	2551	0	0	1	0	20	3.1	12.02
100	1.68	2598	0	0	1	0	20	3.5	11.87
100	1.73	2659	0	0	1	0	30	3.9	11.71
100	1.78	2749	0	0	1	0	30	4.5	11.65
100	1.85	2781	0	0	1	0	30	5.1	11.39
100	1.92	2844	0	0	1	0	30	5.9	10.99
100	2.01	2904	0	0	1	0	40	6.8	10.76
100	2.09	2962	0	0	1	0	40	7.6	10.64
100	2.19	3069	0	0	1	0	50	8.8	10.45
100	2.33	3060	0	0	1	0	60	10	10.11
100	2.5	3156	0	0	1	0	60	11.7	9.74
100	2.68	3196	0	0	1	0	70	13.3	9.37
100	2.91	3288	0	0	1	0	80	15.7	9.34
100	3.06	3380	0	0	1	0	90	17.4	9.73
100	3.27	3486	0	0	1	0	100	19	10.24
100	3.44	3570	0	0	1	0	100	20.6	10.8
100	3.53	3716	0	0	1	0	100	21.9	11.18
100	3.56	3834	0	0	1	0	100	23.1	11.45
100	3.55	4001	0	0	1	0	100	23.1	11.56
100	3.56	4108	0	0	1	0	100	23.1	11.61
100	3.56	4215	0	-1.05	1	0	100	23.3	11.65
100	3.56	4354	0	-1.05	1	0	100	23.5	11.71
100	3.55	4470	0	-1.05	1	0	100	23.7	11.87
100	3.56	4594	0	-1.05	1	0	100	23.7	11.98
100	3.5	4766	0	-1.05	1	0	100	23.7	12.02
100	3.49	4912	0	-1.05	1	0	100	23.5	12.06
100	3.42	5027	0	0	1	0	100	23.3	12.11
100	3.36	5108	0	0	1	0	100	23.1	12.11
100	3.28	5244	0	0	1	0	100	22.7	12.11
100	3.21	5396	0	0	1	0	100	22.3	12.06
100	3.14	5505	0	0	1	0	100	22.1	12.11
100	3.07	5585	0	0	1	0	100	21.9	12.21
100	3.01	5699	0	0	1	0	100	21.5	12.18
100	2.95	5821	0	0	1	1	100	21.7	12.14
100	2.9	5934	0	0	1	0	100	21.5	12.06
100	2.85	6089	0	0	1	0	100	21.5	12
100	2.8	6180	0	0	1	0	100	21.5	11.89
100	2.76	6293	0	0	1	0	100	21.7	11.76
100	2.72	6393	0	0	1	0	100	21.7	11.62
100	2.68	6415	0	0	1	0	100	21.9	11.49
100	2.64	6580	0	0	1	0	100	21.9	11.34
100	2.6	6652	0	0	1	0	100	21.7	11.24
100	2.57	6740	0	0	1	0	100	22.1	11.14
100	2.54	6756	0	0	1	0	100	21.9	11.05
100	2.51	6902	0	0	1	0	100	21.9	10.95
8.63	2.46	6981	0	0	1	0	100	21.9	10.87

[CatfaceType-R]

Originally Posted by Tgui

- Hallman MBC, Prodive EBCS and Labonte BBK-20 all working together to control boost. Don't ask, I don't have the energy to explain.

please do a write up, and do explain I have seen people say they have done it, but when you ask them to explain the setup and what they are doing with it...they go ......

so let's hear it! Help out the community

[paul_p1]

You're really rich at spool up, can you not run a bit leaner there?

[Tgui]

I wanted to make sure that my lowish numbers weren't the result of severe mechanical issues and did a compression/leak down (sorta) test this evening after work.

Clockwise from left hand driver:
139 PSI
139 PSI
138 PSI
140 PSI

All good!

[Tgui]

Originally Posted by soon2bblackongold

please do a write up, and do explain I have seen people say they have done it, but when you ask them to explain the setup and what they are doing with it...they go ......

so let's hear it! Help out the community

You owe me a stage1 block at cost now.

[Tgui]

Originally Posted by paul_p1

You're really rich at spool up, can you not run a bit leaner there?

I should I tuned this setup the night before. Its going to be a bit of working getting the boost activated switch kicking on at the right time.

[STi Mikey]

Originally Posted by Tgui

I should I tuned this setup the night before. Its going to be a bit of working getting the boost activated switch kicking on at the right time.

Even though its an inexpensive build, you should try to get your money's worth. There are a few dynojet graphs on here of stock vf turbos making just as much peak whp and even more at redline. I see your using meth, but with pumpgas boost levels. With your current set-up the MAF has to be maxed out, or very close to it. Spend $100 on a big MAF and retune for more boost. 26-28psi on an OG green with meth is about right. Even with high temps, I cant see conditions smashing your top end that badly. Your set-up isnt run of the mill either, you have some killer potential here.

[Tgui]

Originally Posted by STi Mikey

Even though its an inexpensive build, you should try to get your money's worth. There are a few dynojet graphs on here of stock vf turbos making just as much peak whp and even more at redline. I see your using meth, but with pumpgas boost levels. With your current set-up the MAF has to be maxed out, or very close to it. Spend $100 on a big MAF and retune for more boost. 26-28psi on an OG green with meth is about right. Even with high temps, I cant see conditions smashing your top end that badly. Your set-up isnt run of the mill either, you have some killer potential here.

Why would I need a MAF when I'm running SD mode via a UTEC? I *think* I pinpointed some of my issues holding more than about 21 PSI at redline to my MBC. I thought I had used the high pressure spring. Nope. From what the dyno owner told me, given my boost levels and meth, I eeked out a bit more than what he could get from a 20G on 93 octane. I wasn't surprised nor offended.

Thanks for the kind words on my setup! From what I've seen I might have to pick your brain further at some point.

Logs will be posted when I get em....

[penusai]

edit your first post and note that you are using speed density via utec...

just so nobody asks about the MAF. =)

[Tgui]

Originally Posted by penusai

edit your first post and note that you are using speed density via utec...

just so nobody asks about the MAF. =)

ahhh, more work...