Hi guys, just a quick update on SilverEVo8's car.

Car is done and tuned, and it is running AWESOME. The owner was extremely happy when he got it. He has all the nice stuff on it, he did not take any shortcuts. It looks all stock except the Greddy intercooler

Here are all SilverEVo8's mods:

- HKS Racing Suction kit
- B&& Downpipe
- Custom built 3" catback exhaust
- AEM Engine Management System with 3.5bar MAP sensor, IAT sensor
- AEM boost control ( 19psi on the street)
- AEM wideband O2 gauge ( an important mod for ANY modified EVo)
- Greddy R-SPL intercooler ( Evo7 part number, but it fits the EVo8 perfectly, no cutting required)
- HKS 262in/264ex cams
- HKS adjustable cam gears
- HKS 680cc injectors
- Perrin fuel rail
- Walbro 255l fuel pump

- Greddy 52mm black boost gauge
- Greddy 52mm black EGT gauge

Here are some pics of the car:

- The ALMIGHTY Greddy R SPL, fully polished. It made such a big difference, that after installing it, the car would not idle or drive, it was leaning out to like 17-18AFR. Imagine the extra air flow Quick tune with the AEM and the AFR was back to normal. The result: the car hits full boost at like 2700-2800rpms,and it pulls HARD!



The HKS Racing Suction kit, with no MAF sensor. If you want the ultimate airflow, that is the way to go.



The Perrin fuel rail and HKS 680cc injectors... Looks like the car is ready for a bigger turbo



A very important mod for any turbo car: cams and cam gears. They always go together, in order to realize the best power from your engine.



AEM wideband O2 gauge - it workd GREAT! We installed an FJO gauge ( a lot more $$$), and both read the SAME air-fuel ratio across the whole band. Talking about being accurate



Looks like SilverEVo8 is done with the gauges ( well, an oil pressure gauge would be nice to have)
Greddy boost and EGT gauges













And finally, look at the fuel map and torque curve of his setup.




Also, look at that datalog. Fully boost comped, 11.5AFR at full throttle


George

 

Forget it!!


Nice numbers

 

We are going to the dyno on Saturday

With the AEM's boost comp method, if the fuel curve is tuned, the fuel curve is the same as your torque curve.

George

 

Hey George, I'm very curious to see what kind of power my car is going to put down Lets see if we can make that Sat dyno date! BTW, some guys are telling me that the wide band O2 sensor is going to burn out very shortly because they are not to be run all the time What's with that? I thought the UEGO was to be used as a feedback with the AEM EMS to maintain A/Fs at a target number if so configured.. Anyway, this might be a little premature but my gas mileage might be back up to what it was before we started the mods. OTOH, there are still a few idle instability issues... Rather odd since the idle can be fine for some time and suddenly it'll start fluctuating at the next stop... Oh well, I imagine some adjustments might still be in order... One thing for sure, the car pulls very hard

Well, bad news.... the car pulls harder than before, but not nearly as hard as it should. The dyno shows I'm only putting down 259.5 whp (that's 20 hp less than other Evos with half the mods (Ryan's, Todd's)

 

Hi Manuel,

the wideband O2 will burn out on leaded fuel quick. On unleaded, it is almost like a regular O2 sensor.

Your idle control valve is acting up weird sometime, might be time to clean it because you have 22K on the car.
The gas mileage: it will be less than before, after all these mods. You cannot gain power and gas mileage at the same time. More boost requires more fuel, otherwise you go lean
Yeah, your car pulls like CRAZY. Wait for some race gas ( we have a drum of c16 in the store) and some real timing, and to raise the boost from 19psi to 25psi

George

 

Did you guys get any numbers yet?

Jeb

 

I have not had the dyno tune/pulls yet. I did get to the dragstrip Friday night and managed a 13.03 @ 105.6 mph.... That's with my street maps and 93 octane pump gas. Also, my driving could stand improvement.... My 60' was 1.932 I also got one other run witha TS of 106.75 mph
I had the fastest times for EVOs that night and actually a guy who filmed that run said that I had pretty much the quickest street legal import so far (but things might have changed later...) I don't know how those numbers compare to HP/Torque......

Update

According to a HP calculator from the web, the HP results are as follows:

13.03 ET = 308 WHP or 363 FWHP
105.6 mph = 317 WHP or 374 FWHP
106.75 mph = 328 WHP or 387 FWHP

I used 3450 lbs for the weight of the car, driver, fuel, etc. These numbers are of course just an approximation as they apply to RWD V8's, but still it's something to look at......
http://www.speedworldmotorplex.com/calc.htm

Update: those numbers are bogus, the car puts down 259.5 whp It was tested May 15 at dyno4mance

 

Well I love the look of the IC.

 

Thanks! It does look good

 

Is that a slow track then or do you know? It looked like there's a lot of $$ in that engine and 13's isn't really impressive. I've got to be missing something given the above mod listing.

 

The Commerce track is notoriously slow. I don't know how other EVOs in other parts of the country get such low ETs and more importantly, such good trap speeds... I'm not sure but I think somebody posted times in the 12's with a stock EVO, but frankly I've got my doubts.
When I went there I had the fastest and quickest EVO norwithstanding my less than stellar driving The fastest time posted at that track by an EVO was 12.9XX by Ryan. He has an XEDE, 272 cams, exhaust and I don't know what else. He also ran a race map with racing gasoline and the temps that night were probably in the 50's
None of the other EVOs that ran Friday night were "stock" IIRC, they all had boost controllers and exhausts, some had SAFCs and intakes as well. Only one other guy got a 13.1 and he got it later in the evening after it cool down somewhat....
Yes, there is a lot of $$ in the engine. I see a 1.3 second quicker car and 10+ mph faster than before the mods.
As far as impressing anybody, well.... I guess somebody is always going to be underwhelmed out there. Sure, I'd like to see more power and better results, but that's going to take more tuning (a race gas map?) and better launches and shifting. Anyway, if you are ever in this neck of the woods, bring your car to commerce and see if you get the results you've gotten elsewhere. You might be surprised....

Update: the reason the et's and traps are as so low for the mods is that the car only put down 259.5 whp as measured by the dyno at Dyno4mance, May 15

 

 

Good run's Silverevo8 . Need to get that thing tuned and then see what it can due. See you on the dyno day.

 

Hi Mike,

I should be picking up my car tomorrow, so I can give you the defi the next day...

George

 

Cool thanks George just give me a call and I'll swing buy whenever.
Manuels car did very good for it first time out.
I can imagine with a little more Boost and maybe some race gas it will defintly be in the 12's. I need to catch up to all these cammed Evos. I am like 3-5/10s slower without cams. Need to save some more $$$$$$.
Later