Why spend all of that money only to cheap out on the meth...if you search around here you would see that a majority of engine failures are caused by faulty meth systems....if it were me, I would only go for the best....aquamist.

 

I was, thank sparky, I dont know why I was thinking about a manifold. It is their turbine housing that is restrictive. Either way, I have never seen 475awhp from a 3071 ever.

 

worth it....and this was before the following mods...(Open element Intake, o2 housing, EBC, 65mm throttle body with ported intake manifold inlet, 280 cams, higher PSI BOV, & 18lbs wastegate actuator)...nuff said...



She should be holding boost longer and moving more air which = more power with my airflow mods above and hope to see 450+ on DataLogLab and less taper on the boost after some tuning....

Here is the boost plot and why the TQ goes down quick on the dyno chart...





Here is a plot at only 27 lbs with no adjustments from the original tune on race gas with the new mods (noted in my sig)....the torque will go up when i get the boost to the desired 32lbs that it can boost at...you can already see up high where the hp is not dropping off like it did on the dyno with the weak boost plot....

(This is a work in progress as the chart below was done last night)

 

BTW here is the comparison between the 16g and the 20g on my car (with alot of missing/needed bolt ons...



Maybe the FP Green doesn't shine that bright on pump gas.....or maybe i shoulda had all the bolt ons to begin with....but here is the before/after dyno of the 20g...

Also, this turbo will not taper on pump gas like the 16g does... and yeah, i know the fuel was a bit rich...she wasnt tuned yet

 

Alan, what are the IDC's at 32 PSI with the 850's?

 

Well this is something you have to research and decide for yourself. I stand by what I said. I'm not comparing cams to nitrous I'm comparing boost to nitrous. It's sort of the same thing really you are simply cramming more air and fuel into the motor.

There are some application issues that may affect the toll it takes on the motor but most of this comes down to common sense. Bigger turbos normally make more boost higher in the RPM band. They can't instantly make an extra 100whp at 3000 rpm like you can with nitrous. If someone didn't think things through and simply sprayed a large shot at low RPM bad things might happen. This is why I recommend an RPM window switch. With the switch you can configure the juice to come on at 5k and spray till 7k or whatever you like. Most aftermarket ECUs have even more sophisticated nitrous controls making it even safer.

With a monster turbo you put stress on the motor every time you get on it. With nitrous you only add power when needed. You could go for months and not even touch the bottle. When I first installed it on my DSM I ran about 10 bottles the first three months. Sometimes I sprayed when I wasn't even racing, but after the novelty wore off I only used it for an "important" race.

Usually the people that bad mouth nitrous are the guys you don't want touching your car. But just to be fair I'll list the top five negatives about it:

1. Its to darn spray easy to increase the shot. People go overboard.
2. Expensive. A healthy shot of sauce will cost you about $5 per 1/4 mile pass.
3. Its not always ready to go. The bottle normally has to be heated. (15 minutes)
4. When the bottle is empty the power is gone until you refill. 10 passes on a 10lb bottle using a 100whp shot (52 N2O jet).
5. People will call you a bottle baby when they lose.

 

helo can some one help me out
if i wanna to change my evo9 mr turbo to evo green do i need tuning?as my car have little mod like a apexi filter,tomei o2 and down pipe,apexi n1 mufffler. And the rest is stock.
Will i encounter any problem without tuning my car after install the evo green?
tks in advance

 

You will hardly see any gains with just those mods, especially just running pump gas. Id stick with your stock turbo since you have an EVO9.

 

I know that there have been faulty meth systems, but are all of them Snow? I highly doubt it. I have seen a lot of praise on this forum for the Snow kit. It is simple, and with the failsafe you shouldn't have any issues unless it was improperly installed.

I have also been looking at the Aquamist.

 

You would need a minimum of better clutch, bigger injectors, and kick **** tune to see any gains at all.

I agree with the above. You would be better off with the stock turbo, alchy injection, and a tune.

 

tks for relying
that mean there will not be any gain when changing stock to evo green?

 

On pump gas, the gains will me minimal with your mods and it will certainly not warrant the price tag. Youd be better off getting more mods, like meth injection.

 

so i should start wif injector,fuel pump,fuel rail ,cam plus a reflash.
is it a must to change the stock intercooler while using evo green in the future?
tks

 

You dont need injectors or a fuel rail.

 

FWIW, people have seen approximately 20whp gains by going to the Green from a 9 turbo.