Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybrid

Heads, valves, pistons, rods, crankshaft, etc...

Moderators: Helpinators, Moderators

Post Reply
MikeyMeyagi
Second Gear
Posts: 454
Joined: Thu Nov 23, 2006 1:07 am
Location: Maine

Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybrid

Post by MikeyMeyagi »

ok, so ive made alot of progress with the car over the past few weeks, got the R180 in, got on a dyno, and went to the 1/4 mile.

Dyno: Land&sea dynomite, stock STi runs 220-225whp
Image

252whp ~280tq 17psi tapering to 13.5 at redline (need bigger turbo) On a mustang dyno, it would read about 15% higher, or around ~290whp.
Video:
http://www.youtube.com/watch?v=ySxVf4sW7W4
http://www.youtube.com/watch?v=FxkNr309Ysg

Footnotes: Car has a huge powerband, and boost comes on fast and hard. My boost taper issue is more then likely the turbo running out of breath in higher rpm's. im planning on going bigger turbo and forged internals next, possibly using a twin scroll GT3076R and building a one off twin scroll header to keep the quick spool up.

1/4 mile: ran at new england dragway in epping NH, about 85 degrees out, running pump 91 oct. Car weighs 3382 with me in it.

RT: .261
60' 1.81
330' 5.45
1/8 8.43
1/8 mph 82.2
1000' 11.02
1/4 13.21
1/4 mph 101.8

Video: http://www.youtube.com/watch?v=t2XEq5yWaFg

Car comes out of the hole HARD. the quick spool and fat tq curve really help to get this thing motivated down the track. Rob's launch control worked awesome, dropped .3 of my 60' the first time i used it.(ran first run without it as a percaution)

Overall, when done right, this hybrid setup WORKS. Im now +7 degrees timing over the base 20G tune, and running 20H cams which are a direct swap into the usdm heads. My valve lash was still in spec after i put the cams in, with no shimming.

See this thread for complete build list: http://bbs.legacycentral.org/viewtopic. ... 49#p197149

Mike
Last edited by MikeyMeyagi on Tue Sep 28, 2010 11:06 pm, edited 1 time in total.
94 Supra Turbo 6 speed. build in progress
98 Lexus GS300, single turbo 2JZGTE swap. daily driver
93 Impreza wagon, home brewed n/a-t ken block themed winter drift missle

*sold*
94 Alpine Sport Wagon... STi conversion, rotated turbo etc
gijonas
Fourth Gear
Posts: 1010
Joined: Sat Nov 08, 2008 10:57 pm
Location: Damariscotta, Maine

Re: Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybr

Post by gijonas »

Damn.
94SS.Wiseco forged pistons,TD04,TMIC,WALBRO 225,440's,3" all the way,revtronix stage 2,enough other crap to fill the internet.

THE TRIBUTE BUILD>>>LINKY LINK>>> http://bbs.legacycentral.org/viewtopic.php?p=295455#295455
Legacy777
Site Admin
Site Admin
Posts: 27795
Joined: Tue Oct 15, 2002 11:37 am
Location: Houston, Tx
Contact:

Re: Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybr

Post by Legacy777 »

Very nice! Good info and a good upgrade path for others.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
evolutionmovement
Knowledgeable
Knowledgeable
Posts: 9809
Joined: Mon Jun 16, 2003 11:20 pm
Location: Beverly, MA

Re: Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybr

Post by evolutionmovement »

Damn, that's more than enough for Duchess. I might have to copy your build once this rwd option comes about.
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
Florin1
Fourth Gear
Posts: 1173
Joined: Thu Dec 24, 2009 1:24 am
Location: Lynnwood, Wa.

Re: Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybr

Post by Florin1 »

Very nice Mike!! Thanks for the videos!
1994 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
rob
First Gear
Posts: 183
Joined: Thu Jun 26, 2003 5:44 pm
Location: Puyallup WA
Contact:

Re: Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybr

Post by rob »

Awesome results Mike. You mentioned there was a Stage2 Cobb '04 STi at the same dyno day. Do you remember how those numbered compared? It would be cool if the dyno owner would let you over lay your results with the stock STi and the stg 2 STi.

I have a couple of questions;

1) Was 5k for the launch control at the sweet spot?

2) How much difference did you notice from the cam change?

3) How 's the knock light activity with the +7 map and on what octatne?

Thanks for posting the results.

-Rob
MikeyMeyagi
Second Gear
Posts: 454
Joined: Thu Nov 23, 2006 1:07 am
Location: Maine

Re: Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybr

Post by MikeyMeyagi »

i think the stage 2 sti made 248hp, not sure on the tq...
the stock sti numbers were from memory of the tuner at the shop...

launch control worked great at the track, no bogging when i let the clutch out.

cam change def changed the exhaust note, car seemed to have more pull all around.

pretty much no knock now with the +7, the light hardly ever blinks. 91 oct gas.
94 Supra Turbo 6 speed. build in progress
98 Lexus GS300, single turbo 2JZGTE swap. daily driver
93 Impreza wagon, home brewed n/a-t ken block themed winter drift missle

*sold*
94 Alpine Sport Wagon... STi conversion, rotated turbo etc
impreza_GC8
First Gear
Posts: 240
Joined: Thu Aug 07, 2008 6:29 am
Location: St. Louis, MO & Carbondale, IL
Contact:

Re: Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybr

Post by impreza_GC8 »

Good to know, very similar setup to me, just I have no solid tune, I hope for similar results with a standalone EMS.
-'97 Outback - EJ25 block/pistons/HLA heads, EJ22T crank/rods/ECU, EJ20G intake manifold/fuel rails/440cc injectors, VF8 @ 11psi. . . . Fuel cut > me
farfrumwork
Second Gear
Posts: 334
Joined: Thu Jan 08, 2004 1:04 am
Location: mile high

Re: Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybr

Post by farfrumwork »

Sweet ride man. Nice power curve too - Love the midrange - speaks well for the chip and the motor combo.

One question is the back-half trap increase. You picked up just under 20mph in the last 1/8mi. I would think you would gain more than that - any idea why? Maybe I'm just off base and 20mph gain is good for this power level, but I picked up 18-19mph with my bolt-on '93 TLeg (VF12 @ 14-11psi, with stock heads/cams and ~240hp at the crank <- dyno proven to be a bit more than a wrx). My results -> 1/8mi = 72mph & 1/4mi = 90-91mph (at 5800' above sea level).

I'm looking forward the Rob ship ECU for myself in the near future :)
Old - '93 T-Leg - 14.693 @ 92.68 at 5800ft ASL (Bandimere Speedway)
New - 07 Spec B/stg 2

"bloodstains - speed kills -fast cars - cheap thrills -rich girls - fine wine
i've lost my sense - i've lost control - i've lost my mind" Agent Orange
MikeyMeyagi
Second Gear
Posts: 454
Joined: Thu Nov 23, 2006 1:07 am
Location: Maine

Re: Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybr

Post by MikeyMeyagi »

farfrumwork wrote:Sweet ride man. Nice power curve too - Love the midrange - speaks well for the chip and the motor combo.

One question is the back-half trap increase. You picked up just under 20mph in the last 1/8mi. I would think you would gain more than that - any idea why? Maybe I'm just off base and 20mph gain is good for this power level, but I picked up 18-19mph with my bolt-on '93 TLeg (VF12 @ 14-11psi, with stock heads/cams and ~240hp at the crank <- dyno proven to be a bit more than a wrx). My results -> 1/8mi = 72mph & 1/4mi = 90-91mph (at 5800' above sea level).

I'm looking forward the Rob ship ECU for myself in the near future :)
i think the mph gain is correct for this power level. My 500whp honda accord gains 29mph in the last 8th... 1/8 is 97 and 1/4 is 124mph.... it takes alot more tq to accelerate from 80mph to 100mph then it does 20mph to 40mph....
94 Supra Turbo 6 speed. build in progress
98 Lexus GS300, single turbo 2JZGTE swap. daily driver
93 Impreza wagon, home brewed n/a-t ken block themed winter drift missle

*sold*
94 Alpine Sport Wagon... STi conversion, rotated turbo etc
cj91legss
Fifth Gear
Posts: 6317
Joined: Fri Jun 20, 2008 8:17 am
Location: Lakewood, Wa 98439
Contact:

Re: Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybr

Post by cj91legss »

Hmm, this is awesome. Makes me really wanna get into a 20G ecu & add my emanage ultimate to that.
91 L-TW Wagon with a full Swap -RIP
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
brweber352
First Gear
Posts: 175
Joined: Tue Jan 05, 2010 9:01 pm
Location: Florida

Re: Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybr

Post by brweber352 »

Very Nice! Looks like I need to get new heads and a Rob Tune myself, LOL.

Congratulations,

Brian
93'TLegWag171k StockBlock,TD05,HallmanMBC,530cc,Walbro255,shortram,LWpulley,DIS-2,MSDcoil,cxrFMIC,trans cooler/external filter,WRX wheels/brakes,CES w/Borla muffler,QTP elec cutout,REVchip2,KYB GR2,GroupN tops/all fr bushings,STImounts,GSD3 tires,LM-1,etc
93tw5spd
In Neutral
Posts: 6
Joined: Tue Jun 15, 2010 4:37 am
Location: salem OR

Re: Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybr

Post by 93tw5spd »

very cool set up! im not very modified (yet) but i am always reading what guys do with their cars and getting ideas for the next upgrade as money and time allows. solid numbers too, very cool.
AWD_addict
Fifth Gear
Posts: 2774
Joined: Sun Nov 23, 2003 12:22 am
Location: Western WA!

Re: Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybr

Post by AWD_addict »

Nice results!
90 L+ wgn
Lego22T
First Gear
Posts: 129
Joined: Sun Nov 13, 2011 12:49 am
Location: PA

Re: Dyno and 1/4mi results: Rob's 20G tune on a 22T/25D hybr

Post by Lego22T »

Well this has me excited for my build. I'm honestly surprised at the usage of the 25D heads. Great job for giving many of us on a budget light at the end of the looooong tunnel!!

I'll be staying with a 5sp but installing 20G heads/cams/intake along with modified STi injectors & 16g turbo. Just purchased a V5 20G ECU to be RobTuned until I save up the cash to go with Hydra.
'92 Legacy Sport - Daily Driver & SCCA AutoX (Class: SM)
"When in doubt, flat out!" Colin McRae 1968-2007
Post Reply