what about it? power is the usually the same between the 3076r and the 3065 even though the 3065 is a touch bigger.

 

i am going VERY soon with that same setup... 3076R and like a couple of days after adding the meth...
that is great info Tom.. thank you..

 

what kits are u going with?

 

well let me see

well.. i am going to the Gt3076R kit.. full 3" intercooler kit
850CC injectors, colder plugs, i already have cams installed.. they are made by Tomei, and the Aquamist hfs-5

all this from stock.. well kinda... i currently have the Tomei cams, and an exhaust manifold, and induction air box, TBE

thats all

 

what gt3067r kit? who makes it???

and can i sugest not to go bigger than a 780cc unless u are running AEM standalone.

 

i am getting my kit from this place

http://mynesperformance.com/shop/products.htm

they are very reputable here in Phoenix AZ...

thanks for the heads up though regarding the injectors...
i will make sure i will call them today and let them know..

but can you tell me why do i need less than 800 CC though? is it coz of the ECU limit?

 

injector sizes can go above 780cc stock ecu with the right tuner..

 

thats the whole plan..
the shop here in phoenix are very good at tuning too.. so thats why i am kinda confused about the injector size


and Brandon.. sorry dude.. i didnt mean to steal your thread from you... i would hope my posts here would help you out and me and whoever going with the same setup...

 

lots of people rush out to get 1000cc injectors and never have the horsepower to warrant it and end up with 65% peak IDC. It's best to get right size injector for the job for best drive ability and fuel economy. If you don't know what's right for you, check with someone that has the same or similar setup. Ask them what their injector pulse width is at their highest RPM and figure out what their injector duty cycle is.

RPM x IPW divided by 1200 = IDC in percent
example:
7000 RPM x 15 IPW divided by 1200 = 87.5% Injector duty cycle.

Keep in mind that e85 and AEM users need much larger injectors and meth users need smaller injectors than pump gas users, so pay close attention to those items to make sure you're comparing apples to apples.

a few for instances: I have two customers: each with EVO8's with 9 turbos at the same pressure one with stock 550cc injectors, one with 680cc injectors. By using the above calculation I found that the 550cc injectors were at 102% IDC which means that the injectors are pretty much static or wide open all of the time which is not good. If he raises boost or adds more mods to increase horsepower he's going to lean out from lack of fuel. The other car with 680cc injectors is seeing 82% duty cycle (if I remember correctly) which is perfectly fine and gives him a little wiggle room for more mods/boost.

 

thats good info..

thanks..

 

I have the 3076 kit with 850's stock ecu and pump gas. I have no problems.

I too went from basically a stockish car. I had TBE, HKS 272's, pump, FMIC, and a filter. It was easier to me than messing around with the stock VIII turbo and it was too twitchy for my personal tastes.

I obviously have the HAFE/SBR kit on mine. But you will love the turbo. I'm more of a DSMlink guy than an Ecuflash guy, so I'm used to just buying the big injectors and being done with it. Buy once, don't buy them again if you need more fuel later. With EcuFlash people will push you more to get the right injector for your needs. Yeah, I get that, but... I always leave a little wiggle room.

I drive my Evo to and from here 50 miles each way a day. And I have no driveability issues. It just took some getting used to ecuflash and some input from some of the guys on here to have it pretty perfect. As far as a "good tuner" required to use bigger than 780's... I'm not buying it. Because I couldn't hold a candle to someone like say, Mellon, and I have it dialed in to where I don't notice any oddities. And it sees all ranges of conditions, speeds, and varying throttle inputs.

I've had the 3065 on a DSM. Prefer the 3076 on the Evo.

 

i have the 3076r/3037s with meth and 780cc. idel is little rough but nothing to really complain about. 850cc and meth is not needed.

 

Guz man...no worries. All the discussion is helping me learn more

As for injector sizing, considering I am going to be running meth, will 750s be big enough or do I need to step up a little in size for the injectors? I'll probably be running 24-25psi daily and maybe 28-30 on 100+meth for a race tune.

 

750's will probably be fine, it depends on how much meth you're injecting. The more meth injected, the less gasoline is need thus smaller injector needed.

I'm doing 780's with my 35R. I'm using the Aquamist HSF-5 for meth. It bases the meth injection on injector duty cycle. So if I run a 1000cc injectors the duty cycle will be very low and thus the meth injection will be low. going with 780's will get me ~ 80% IDC and more meth injected (more power)

 

thats exactly the answer i was looking for..
and it makes sense.. if you got with bigger than 780s, and meth.. you would need a standalone...
but in my case.. i am not going for standalone at all.. or at least not now..
so i will go with the 780s with the meth, and the GT3076R kit..

much appreciated man for the clarification