wow, exciting times! :tiphat:

SAM.... I have had turbo'ed and sc'ed cars including a supercharged e46 m3. With the different power levels of the sc'er and turbo applications which would you recommend for maximum power on a stock block and everyday drive ability with the least oil temp issues if that is even a concern and why ? I know we haven't heard much from the twin turbo'ed guys and i'm assuming it's because of the overheating issues that are being worked out.
I feel that this car would be perfect at 450whp-500whp. Anything over that and traction would be a major issue..... and I have no desire to build a block.
thanks for the info
and great job....
also do you have any plans to run water meth ?

Hey Sam, why did you chose Bosch plastic bypass valve (it looks plastic) over some other forged stuff? For example all of my friends driving BMW 335i and VW's swapped their stock bypass valve with (Forge Motorsport) bypass vavle, here's a link:

Forge Motorsport | Alloy Fabrication

What's the reason that made you go with Bosch bypass valve instead of other brands? And do you think it's ok if the BOV you supply with the kit got replaced with something else if it was made for the same boost level?

Good ?
Any experiments with C16/E85 also?

Frequent Flyer miles = real world testing??? :p

Will you have different maps available for bolt-on mods like Hiflo Cats, headers, and aftermarket cat back exhaust?

Also I live in the Mile High City so do you recommend a different tune for high altitude?

:tup:

:excited:

Sam,

This may sound simplistic but: -

Would you consider using something like a Racelogic Vbox to do a 0-60, 0-100, 80-120 , 1/4 mile times etc for these types of upgrades. I think it would be fab to have these done for some of the turn-key packages you will be doing, so the average joe can get an idea of the improvements in performance these packages will provide.

i think not only from an interest perspective, but from a marketing perspective it might make some sense. I know id love to know!

That would be pretty cool but I wouldn't be surprised if an independent party (i.e. a buyer) would have to be the one to do these tests.

I also wonder if a full blown stand alone ECU would help to gain even more HP and a more reliable tune....If I was going to go with SC I would look into this, just because I would want to buy more mods and make sure I am milking all the HP out of them in a safe manor.

Hmm... i'm thinkin Greddy E-manage ultimate...not a pure standalone but functions as one

HKS FCON PRO - AEM - win if you want a stand alone

I would be happy with free ware flashing software and rom editing and an appropriate cable.

Haltech FTW :tup:.

But i think Osiris tuner should be enought, it's not a TT with 600rwhp +.

Stand alone cost - $3000 installed
Extra tuning - $800
The laughs from friends when you only gain 5hp - priceless

A direct comparison to GT-R's is not apples to apples because the G/Z platform is not factory turbo, but look how far the GT-R can be taken on just the Cobb. I doubt on one of these Stage 1-3 kits that a standalone will be any safer or gain any significant power. As is often said with mods, the increased performance is from lightening your wallet.

http://vinayvasan.files.wordpress.co...ng-bullets.jpg


I'm not sure how that answered the question, but it is interesting that you are going for TUV approval. I don't know much about the specifics, but I assume it is a very difficult thing to do. Probably harder than CARB approval since they look at so much more than just emissions. Hows that CARB approval going anyway?

Numbers are looking good GTM.

Mine is on the way, woo!

Agreed. When good quality reflash software is available, standalones are probably only necessary for high-boost/built engine applications.

A good reflash will be light years ahead of a lot of the stand alone options out there with in limits. We aren't talking about some of the lame "power programmers" that were available back in the day that offer simple tuning options. We are talking about being able to reprogram all or 90%+ of the factory parameters. In this situation until you are well beyond what the factory sensors (mainly maf/map) can handle in terms of airflow, you will probably be better off with a stock ECU on a reflash.

When the time may come that the mafs just aren't able to meter the much larger volume of air coming into the motor, or you need so much fuel that your injectors are too large to be able to idle well w/ in the stock ecus capability, or similar, then a stand alone is going to be the better option. However to achieve the same level of driveability, plan to spend some time, and some money. The factory ECU can compensate for almost any change in atmospheric conditions, duplicating this ability w/ the tables offered in most stand alone options is where a good tuner with experience will shine.

[QUOTE=MMC Racing;436025]Stand alone cost - $3000 installed
Extra tuning - $800
The laughs from friends when you only gain 5hp - priceless

QUOTE]


Agreed on stand alone in terms of cost, personally I would not go that route if I did there are only a couple of units I would personally consider.
I would reflash a stock ECU everytime generally (with a reflash that is easily removed , i.e. uninstalled if needed) but stand alones do have benefits in terms of add on module support, EBCS direct control , WBo2, EGT etc etc

GTM

Are you going to monitor EGT's when trialing different exhuaust set ups? maybe give some data with a stock, HFC, TP, CB - 2.5 / 3in , what ever you test?
I assume most customers who upgrade will already have or will install at least a dual CB, but data to show the benefits other then HP and TRQ would be interesting, especially when timing , fuel and EGT are involved at key rpm areas.

With our turbo system we have made over 600RWHP without any problems, and we have many cars ruining 500 WHP+ on the HR and VHR for last couple years worldwide with stock engine with our GTM flash and still running strong to this day . I think tuning, having efficient system has a lot to do with it. I personally feel 450 to 500 hp is the sweet spot for any street car . and with good driving habits you can get a lot of usage and mileage out of the setup .

Running straight water or water/meth injection system has a lot advantages especially to high compression engine like the Our VQ37VHR. i personally like to use those system as an added safety net more then just a power adder, unless you are doing direct port system witch is the only way taht you really can control and make sure your injected an equal amount of water or water/meth in the engine .

it a lot of fun


Sam

Hi, Sam. What amount of boost is good on the VQ37 before 91 octane pump gas starts to cause detonation issues?

It is a very effective solution, reasonably priced and widley used in the oem turbo german cars. It had worked very well in all the testing that we have done.

Sam

We have not played with E85 yet for a couple reasons, lack of gas station that supply that fuel and also the E85 requires some huge injectors 1000cc+ to keep up with the fuel demand that E85 requires. sense we are utilizing the factory ecu that option becomes more challenging .

As for C16 it is a great option for race cars, very specific fuel that likes running lean and loves timing, not for street cars application.

Sam

Yes stations are an issue for but if able to get there a great option, I would think 600 cc may cope on a V6, what are the current dutys (approx for your set up on pump)

1000's may not cost that much more if no headroom on say a 600, I would def consider a bigger injector as an option, but hell I cannot afford the kit, just am interested in the ins and outs for sure.
Understand on the tuning side of the bigger injector with limited tables avaliable for setting up delivery and decent idel etc.

C16 is pretty sweet, I was more interested on dyno numbers rather then DD running, maybe a 1/4 on C16.
meth is a good option but I dont personally like filling the tank and worrying about fail safes.

I can't wait to install one of these! Good job Sam.

^ lucky man , officially jeleous

If you need more test subjects. (nudge nudge wink wink)

haha.

the owner of the dealership I bought my 370 might be interested in this.

he is a crazy guy

We get asked those questions all the time and i think you should do it, maybe next time when we 're on the track testing .

Sam

Yes Different maps for different stages, supporting mods and octane levels. As for altitude concerns you should have none.. for a simple reaseon

- We are tuning via mass air flow sensors, maf sensor measures the amount of air entering the engine and the ecu adjust accordingly so whether you are at sea level or 5000 feet the ecu will always adjust to reach its air fuel ratio targets .

Sam

So do we lose power in the higher altitudes or does the ecu adjust and we stay the same?

The air at altitude is less dense , so is less powerfull.
Any FI system will have to work harder to meet the same levels of pressure in terms of boost in relation to a sea level vehicle.
The MAF Sam refered to measures the amount of the air passing through the intake/s in a V format, that is directly related to an ECU scaled table that takes that V and performs a look up / calc to see how much air actually is going in, it uses that figure to throw in the correct amount of fuel to meet the fueling targets.
Thats it in a nutshell, but to meet fuel targets accurately there is a lot more then MAF V / air flow alone.

cool thanks.

The only system that have been installed and tuned successfully on a VQ37VHR is the HKS f-con v pro and it was done by us .We have tuned a twin turbo g37 with factory ecu to about 600 whp turned around install the stand alone and tuned the car to got the same results with spending a lot more time and effort

The flash is the best option tight now it does make sense to do anything else

Sam

What i meant is that our real world abuse/track testing is more comprehensive then doing burnout and drifting the car in a parking lot.

If you do a little more research about the TUV approval you will get an idea about what we have to do in regards of testing to obtain that certificate .

Carb approval is going well, so far so good .

Sam

I will assure you that i will post the 1/4 mile times when i get the GTM SC installed on my 370. Im looking forward to a nice 11.7, 1/4 mile time.

Sam any luck with the Torque Converter for my car ?

What kinda trap speeds do you think you'll be hitting?

Sam, what clutch/PP upgrade are you recommending with this kit?

Thanks for the reply Sam. Damn thats not directly about Stillen or anything ;)