Hey guys...

Can someone explain to me how come a "Super16G" is "good up to 400hp" ?

Has it got something to do with Max Airflow @ Max efficient psi for a 2.0L engine specifically, or is it a "ballpark number based on experience"?

'Coz assuming that I had a fully race ported, oversized-valve, cammed, borded, stroked mean mother of an engine with a Super16G... would I still be restricted to 400HP?

Oh and on a funny/sad note, a guy I know dynoed his GS-T (4G63):

>Hey guys,
>
>I strapped my car to a DynoJet, only $25, grand opening special.
>Anyway, I don't know the exact numbers, but my car produced something
>like 189 whp /202 torque.
>
>Man, and I thought my car was slow, but not *that* slow!
>
>FYI, here's my basic setup:
>2G FWD, S60/T28 @ 16psi, Apex FMIC, full intake/exhaust, rewired stock
>fuel pump.
>
>The power graph was real choppy up top, I'm probably running pig rich.

Guy
RS_Guy



http://www.GTuned.com

It's all about airflow.

You can push more air (be it intake air or exhaust gas) through a bigger opening than a smaller one. Turbos have maximum airflow rates depending on size. a S16G will have a lrger capacity to flow ait than say a T25. There are several other factors involved that some of the other guys will likely enlighten you on, but as i understand it, the only thing that really limits how much horsepower a turbo can produce is the amount of exhaust gas it can flow out, and the amount of intake air it can flow in, both of which are directly related to the size of the housing.

______________________________________
-Dino Yancey
I'm so bad, i should be in detention.


Get the Mitsubishi Technical Information manual for the 95-99 Eclipse HERE!
http://www.heavenz-not-0verflowing.com/files/dsmmanual.pdf

Absolutely true, and very logical... So... where did the 400hp come from?

Guy
RS_Guy

"Kiss My RS" (British Accent Please...) :-)



http://www.GTuned.com

The maximun rated airflow of the given turbo. Say it can force out 600CFM of air.. that's good for x amount of HP. (that'd also be a fairly large turbo, like a S20G. i think they're rated somewhere around there.)

There was a post not too long ago on turbo sizes and thier rated airflow capacity. if you search for it, you might be able to find it.

______________________________________
-Dino Yancey
I'm so bad, i should be in detention.


Get the Mitsubishi Technical Information manual for the 95-99 Eclipse HERE!
http://www.heavenz-not-0verflowing.com/files/dsmmanual.pdf

...the power rating is usually conservative, so that it will make at least that much power on any car, even if safely(HRC) or poorly tuned. For the most part turbos aren't rated for anything over 90K miles but they can last up to 125K with care (oil cooler, TT, regular oil change)

Skrilla
'97 Base Talon NA
"Technology: The Only Replacement for Displacement"
"Peace and Turbo Grease"

yeah I never really got the "rated" thing either. So a T25 is good for up to 250hp. So if I put in on a 250hp in line 6cyl then what? IS it good for 250hp on top of that?


Stan2gnt
Stan2va@aol.com
95 Talon 420A-Turbo
Former and future nitrous user

EZ the bigger the turbo the more horsies, take more to spin it but you'll get more horsies. I'm guessing the up to HP thing is if you ran enough pressure through it say like 20 PSI you can get this much HP. so it would go (total capacity of turbo) - X HP for like how much it has left to offer you. That's the way I think about it, heh like my engine will stand a chance at 20 PSI in it's present form :P


95 Mitsu Eclipse RS
AFX Pulley | Performance Muffler | HKS Air Filter | KYB AGX Shox | Skunk2 Coilovers | FU, RU, RL, and RRE FL Tie/Strut Bars | RS to TSi Rear Disc Mod | RS to TSi upgraded F&R Sway Bar | 97' Spyder Eclipse 5 Spoke Wheels | HKS TYPE 1 Turbo Timer | Star Stage 1 T3/T04E BB Turbo Kit | and 1 HiGhLy SkIlLeD DrIvEr! |