As I have received a number of inquiries today on the subject, the rev limit on the WORKS flash is raised from 7600 rpm to 7850. Since the top speed on the U.S. Evo is rev limited, the WORKS ECU flash enables the car to exceed a calculated 160+ mph (in a controlled environment).

-- DavidV

 

What about the a/f ratios and the boost????

We NEED to know this.

 

David,

I'm on your pre-order list, but I have to ask you these questions 1st:

1. Does it have a map for 93 octane?

2. As asked before, how is boost set .... 19 psi to redline or no????

3. I know this is okay with the rmr reflash ... but will the works ecu function properly with my simple mods -- a full 3" turbo back exhaust and an HKS EVC boost controller?

Please advise asap ... thanks.

 

(1) The A/F ratio varies depending on rpm and running conditions. I'm not in a position to provide A/F ratio breakdowns in 100 rpm increments. Suffice it to say, it is 100% safe and reliable and optimized for the car's power delivery.

(2) The boost does not exceed the factory peak (19.0 psi).

(3) We will soon post a 93 octane map.

(4) Our flash program will work with our DP (yet to be released).

-- DavidV

 

No **** Dick Tracey! People who know how to read between the lines would be interested in comparing the "curves" vs. raw numbers which would be worthless...

 

So, how the heck did you tune??? By the smell of the exhaust? If so, how does it smell?

The turbo is not capable of much more than 19. But, do you hold it to redline? What did you do to the curve?

Sorry for sounding pissy, but once the flashes are loaded into peoples cars, we will have access to this info. So, why can't you give it to us now?

 

So me 'n Cooter were out jettin the carbs, and I turns to him and I tell him, them fumes just ain't right...

Actually, we are looking forward to having WORKS users contribute to these types of discussions, including posting their dyno results where applicable, and more importantly (IMO), real world driving impressions.

-- DavidV

 

The factory turbo is capable of 24-25 psi of boost!!! Where are you getting this 19 psi peak info from? Rev limiter to 7850!?! Why not around 8500, have the boost max to 20 and taper at 19. Adjust the A/F ration to around 9-9.5, maybe even 10.0 (factory is 8.8, and if anyone wants to argue, I have the factory service manual). Some brain ECU should be able to make our US Evo comparable to the FQ300 in EU, which has 301HP/300TQ. These numbers by the WORKS reflash are a little thin IMO for its price. Might as well go for the AMS "type" of MODS for running in the low 12s. I know that if we get the reflash, most people will still do a lot of MODS, so why even bother with the reflash ECU if it looks like it aint worth it? Maybe WORKS is getting a little too conservative, but can't we compare our car with something like the WRC cars or what I said above for some good solid power? We should be able to work with the engine specs and limitations in doing our MODS so we wont blow our engines up!!!

Am I dreaming, or being sensible?

Someone enlighten us.....

 

David, nice dyno charts! The power band looks pretty broad, and should provide pretty smooth delivery of additional power across the entire rpm range.

From your comments it sounds like you will have a 93 octane map? I am one of your pre-orders here in St.Louis Mo, and will be pretty happy if the 93 octane map is going to be available.Can you comment on this?

What kind of additional power does the rush pipe add to the ECU?

BTW- Any idea on the timing for notifying the pre-order folks? This is excellent news(can you tell I am excited)!

Oh yeah, one more thing.........congrats on a job well done David!Now lets get some of these in the field for some real user feedback!!

Thanks!!

Jeff
jredding@usmo.com

 

Well, since the Evo has 271 hp stock, and they increased hp by approx. 30 at THE WHEELS, we should be over the 300 mark at the crank.

I personally haven't decided which I like better yet (RMR, Vishnu, Works). I do feel that if works offered custom dyno tuning so you didn't have to get their products exclusively, it would be even more marketable (don't know if this is even possible for them, just an idea).

For people like me, who want to get a part here, and other parts there, Vishnu may be the best option.

Just my .02

e in la

 

Makes sense to me. Now we just need to see how it translates on the track, I think the numbers should be in the lower 13's. Only one way to tell though...

 

After seeing the evo and sti head to head by variouis car mags i'd still agree that the evo is overall better. Only thing is the lancer interior wish they went different there. As for the ecu mod seems really good to me. I wouldn't think they would do AF ratio at 10 rather more like 11.5 even 12.0 with 19/20peak boost. Rev limit to 7850 seems about right for the vlv springs. Much higher and you may experience some floating which could kill the motor. I have seen one reflashed ecu for evo running fuel at 12.2:1 and 22peak boost across powerband and 7800RPM limit. Let me just say that there is 40hp unlockable in the car. One reason i'm seriously debating getting one. I've personnally seen the evo at the track and with the ecu upgraded i believe high 12's are possible. Definately do CAI/exhaust/boost upgrades before doing ecu. That way you won't have to return later unless you get real serious. With those mods you'll be low 12's no problems.

Edit: nice work Dave, you can see the conservative side of the graph... i'm curious to see a more aggressive scale including intake/exhaust mods. Those are the two things everyone will do without a doubt so why not work ecu for that? Also get a more aggressive pull which still allows for minor fluctuations in octane. Keep up the endeavor as the evo guys are loving this!

 

Why the big bump around 6k?

 

Hi David,

Please don't take this the wrong way but I have a couple of issues with your dyno results. You mentioned that you used an AWD Dynojet. Presumably a dyno in the SF Bay area where I just happen to live However, I have never seen a stock EVO dyno as low as 202 wheel hp on any AWD dynojet. In fact, just about ALL of the EVOs dyno'd on AWD Dynojets have made 220-240 wheel hp. Even on 91 octane gas. Can you explain this?

Also, why is the hp/torque graphs so rough and lumpy? This would, in my opinion, indicate poor tune and/or knock sensor activity. A properly tuned engine should work like an efficient pump and exhibit power curves consistent with its natural volumetric efficiency. With the dyno results you've presented, all I see is a poorly running stock car an even more poorly running modified car that just happens to make more power from presumably running leaner with more ignition advance.

Again, I'm not trying to bash the results. But I'd love to engage in a conversation with one of your engineers.

Best Regards,
Honky

 

He said it doesn't exceed FACTORY boost, not capable peak boost. And are you serious about an 8500rpm redline? And if you add the 30hp gain from the reflash to the stock crank 271 guess what you get...301HP like you said we should have. Torque may be a bit thin though. I think the price is worth it. A upgrade that is invisible, never have to worry about and more than likely won't be noticed by a dealer therefore not voiding your warranty. Works for me. And the gains were made without increasing the boost past stock peak. Bingo! That's exactly what people who would buy this are looking. Reliable and safe are the key words with Works.
I have no idea what you were getting at with the engine spec and limitation stuff. Try it again after rephrasing it, I'm not sure exactly what ya meant.