Just been back to PE for follow-up dyno run after the ECU initial learning process.

Peak figures are now 317 bhp & 295 lbft, but better than that peak torque is held from just over 3000rpm thro to 5500rpm, torque curve is absolutely horizontal during this stage!

I've picked up quite a bit a torque 12-13 lbft in many areas of the mid-range.

Before anyone asks I'll scan the dyno plot once I get my new scanner for Xmas. Matt, if I e-mail it to you, please can you post.

Lemmy was down at PE to see the above and for a spin afterwards, any further comments mate?

All the best for Xmas & New Year.

Paul

 

Gofaster,

That would be me. Do you want to email me offline?

Cheers

WB

 

I was very impressed by Paul's car both on the rollers and the road. I not sure I have seen such a flat torque curve up at 295 lbft before on an Impreza, and it was only at 18 psi (1.25 bar) boost. There was also much less negative knock correction (-2.5 around 6000 rpm) than on standard and other modified STi7s.

Once Merv has got a bit more experience with STi7s he expects to raise the boost a little, maintain the boost at higher revs and play around with the cam timing to liberate even more power.

The combination of the PE sports cat exhaust system and the Ecutek software is very impressive on the road. My head was really wacked in to the head rest in 2nd and 3rd gear. The noise levels from the exhaust were just right - a nice burble on tickover, fairly loud on WOT and as quiet as the standard STi7 at 80 mph cruise. Some people would probably find it not lod enough, but that could easy be fixed with a different backbox.

I think my bank balance might be taking a hit in the New Year.

Alan

 

Paul,

Yes

Matt

 

I actually had a cheque ready for an Evo7 because I was so p1ssed off with the car when Pete Croney rang me and swore he could change my mind the next day.Well he cost me a few hundred quid and saved me a about £7k! Pat mapped the car and its very impressive.The Mid range punch is fab,head back on the seat style.Although the car still does'nt still seem to take off until 4k revs it now gets to 4k quicker(if you know what I mean).The car used to feel strangled above 5.8k but now revs clean to 7.5k.The map still seems really rich,ie AFRs of 9.5 so I'm hoping there is some more space to trim.If the boost could come on strong 0.5k lower,this car would be phenomenon! I'm planning to add aquamist(?maybe FMIC) before the next tweak so that I have extra safety to push further.
The interesting thing is that these gains are without any alteration to cam control,when this is mastered,who knows....

 

Lemmy, glad you were impressed by the test drive. Car definitely now feels like it should've been from new (apart from the odd rattle of course).

I'm going to have to consider some work at Powerstation now to overcome the power-on wheelspin. Anti-lift kit or something? Any recommendations anyone?

Deep Singh, glad you are also happy with your SS EcuTeK. I'm not sure when you had yours done, but with my ECU learning process my peak torque is now hit between 3000 & 3500rpm, which compares very favourably with the original trace above just after re-mapping. I've definitely now got that punch @ 3500rpm or below that you are after. Hopefully yours will follow suit to!

I'm happy in the thought that this car is so much improved with a very conservative map.

With the option of slightly higher boost level, longer held boost, AFR and cam timing tweeks a future possibility there is little doubt that these STi7s can hit 330bhp easily with peak torque held beyond 6000rpm.

 

Hi Paul had it done on Friday but have only had time to drive about 35 miles since then.How many miles did it take for you to notice the further improvement? Cheers,Deep.

 

Deep, It seemed to get quicker and quicker up to about 200 miles, I think the important thing is the number of relatively short journeys (20 miles or so) moreso than just a solid 200 mile hike. It took about a week to fully find its legs with my usual routine, plus the weather was mighty cold during this period.

During the initial learning process I was giving it some proper welly all over the place. My theory was it can only learn what it can see! Also I've only used Optimax since the re-map.

Worth the wait though, it just gets better & better after the re-map!

Have Fun

Paul

 

Cheers Paul.I had it mapped on Optimax but am running on Optimax and NF Octane booster to see if I can tease it a little more.Have a good Christmas,Deep.

 

Matt,

YHM.....latest dyno plot!

 

Can anyone tell me what AFRs are being used on the no det map on either ar all of 1)Std STi7(uk OR jdm) 2)STi7 with ppp 3)STi7 with Ecutek.

 

The afr "numbers" in the maps are for indication only and are totaly dependant on the individual car set up wrt to exhaust/induction etc. Your mapper should be able to give you all that info Deep. Typically fueling is set very rich indeed though.

At 9.5 its still pretty close to std.

BTW an Sti ecu learns very quickly indeed and you shouldn't have to cover 200 miles in order to get it to learn to its best.

 

hello,
Could send me your last dyno chart at PE?
Is the Pe exhaust a 75 mm?
Im actually mapping a STI7 but with another diameter exhaust, progressively growning one downpipe 58mm, and the rest 67mm (standard restrictor no overboost problem) cause with a 3 inch we had a quite big overboost (standard restrictor has been changed to a 1,1 mm to avoid overboosting)

Peter Kocialkowski
POland

 

Hi Bob.I have my numbers but wanted to compare with others to see how far they had pushed things.Seems to be running very well a present.Have you had a play with the cam timing yet?
Regards,Deep.

 

Hi Paul,
Can you post the maps to me aswell as I have just had S/S ecotek my car.

Email me offline.

Cheers,

Dave.

 

Deep,

 

Bob,I thought you might say that!!

 

FWIW, there are some pretty major differences between the JDM and UK STi VII ECUs, not only are the map contents different (which one might expect) but there are some maps in the JDM that don't exist in the UK and vice versa. The boost spike problems are pretty obvious when you have a look at what's in the stock ECU...

 

How so Pat?

 

P.S. Paul, will do the post tomorrow

 

I get to play with the software too next week

 

Paul's before and after Dyno plots:

Before


After


Matt

 

Not looking as good now courtesy of Parking Express (Heathrow), could be a long story now, this one will be in court! Not done by punters but locals ("allegedly")

http://www.scoobynet.co.uk/bbs/thread.asp?threadid=167001

 

How can I view the dyno plots. Seems like all attached plots don't show up on my browser.

 

STi_B4_Vivio


Ensure that your firewall if you have one is disabled. You should then see the plots or any other photos on the site.

 

Thanks, disabled the privacy setting in Norton Internet security did the trick.

 

Hey John, Bob and Pat,

Do you think it is reasonable to assume that a JDM STi-7 with full turbo back decat zorst (2.5") and a properly but conservatively (ie: 'safe') EcuTek map could yield 320 bhp and 310 ft. lbs. torque on 98 RON gas ?

Cheers,
Ray

[Edited by Razor2001 - 1/14/2003 7:16:29 PM]

 

Your big problem will always be charge temperature. Possible in Uk not sure about at your location.

 

300 bhp and 290 ft. lbs ???

 

Bob,

If you don't mind me asking, how much better are things likely to be for me with the variable timing all expertly sorted out.

Cheers

Paul