6G Celicas Forums

Dustin (Batman722) dyno'd at 329hp at 19psi on 93 pump gas and 335hp at 22psi.. thats with he e153 tranny but still stock motor.. obviously not running the high boost all the time but just on the dyno to see what he could get.

everyone stop with the power numbers for a moment so everyone gets on the same page here

Dyno figures - cant f*cking compare FWD and AWD damn it. There isn't a single person here who has an ST202 and an ST205, dyno run the ST205 and then swapped the turbo motor into the 202 and gone for another dyno run to be able to make any such comparison accurate to ~30HP.

In general, a stock ST205 (stock=turbo,injectors,management) will produce up to ~240HP on ALL FOUR WHEELS with some light mods and a healthy engine. This number is alot higher for FWDs.

So what's that at the engine? Forget about it. You cant go by someones guesstimate that well, the dyno corrected 240AWHP into 300BHP so maybe 220AWHP on another GT4 is about 280BHP. Rubbish, you cant draw a comparison on that worth sh*t, so forget engine horsepower and BHP.

Now re-read the title. it states that the OP is running an ST205 increasing the boost to 17PSI he wants to know what kind of power he will make.
The correct answer is up to 240AWHP. Nothing starting 3--. I know this for a fact, my tuned fuel map reaches 102% duty cycle in the sector where 300AWHP would have been made, which is around about 1.45bar or 21psi. Try that with your stock ST205.

Dustin is probably running water injection and/or a tuned ecu. Dustin is also FWD. Dustins motor and his current state of tune would never make the same power in an ST205. So how is this even remotely relevant to OPs stock ST205 with a simple +4psi boost increase?

http://www.youtube.com/watch?v=gp6gAnnSCc0

This post has been edited by enderswift: Jan 30, 2013 - 5:51 PM

EDIT:

your right not relevant at all. it wasn't running meth at the time and I believe had a stock ecu IIRC from what Manny told me. there is a big difference with the st205 and a swapped 202 in hp numbers. i was just stating what the motor could produce, even though it was a e153 instead of the e154f. sorry for the inconvenience.

good luck with the hp gains OP.



This post has been edited by Ted95: Jan 30, 2013 - 6:16 PM

No.
Stock motor, stock turbo, stock internals.
Stock ECU.
No water injection.
I used a symtec map clamp to boost past cut.
I had a Berk dp to 3" cutout, an intake, and e153 trans (FWD).

There is more drive train loss (and weight - so on the street it makes a big difference) with AWD.
300whp is very possible on a true GT-Four, just look on GT4OC.net for dyno #s.
No need to argue.

Not stock.

GT4OC dyno day

^--- in every run, 240HP is in the higher end

this is very consistent with local ST205s that run 220whp @ stock boost and 240whp @ 17psi with a boost tap and catback exhaust. <--- these are still damn fine figures for a 1994 car (19 years old!!!!) that was factory quoted to have 250hp at the engine!! but still a far cry from 300.

this is known as a safe limit for daily driving on pump fuel. asking the stock ecu & fuel injectors for a further 60hp is achievable under certain conditions and with modifications (that i doubt OP has). All good to say "its possible, Ive seen it on the internet" but if you've ever owned one, its a different story

This post has been edited by delusionz: Jan 30, 2013 - 6:39 PM

There are many interesting points in this topic and sorry for not following original question. First of all. delusionz damn well knows what is he talking about. I would singn below everything he wrote here because I have the same conclusions with my ST205 after years.

It is like one year ago I made one small calculation. It was like thinking about "I made my dreams come true... really?".
In 2006 (two years after I bought it) I decided to move with my celica forward in terms of power. I got offer to swap 4th gen 3SGTE (so from Caldina) to my ST. So put engine that has 250HP (about) into front wheel drive ST. When consider weight of the car, loss you have between engine and the ground you can calculate ratio "how many HP on wheels you can have for 1000kg of weight". That was lets say my "target power". With ST205 I did the same. But this tome from "the other end". I had target ratio... I had weight of the gt-four... I had loss for AWD car (in fact is is double than for ST) and ended with HP on the engine I need to have to be at least "equal" to my dream in 2006. I ended with number 380HP. That is for 130HP more (about... who cares about few ponies) than has stock ST205 (on engine).

Second thing is "point of view". Someone is looking for "peak HP". Power with engine can survive barely 500miles before something breaks. But someone is looking for power that can give to the engine long life. Safe power. I found "safe" power for stock 3SGTE (with stock everything around) is around 280-290HP (on engine). Stock injectors simply can not give enough fuel and stay in "safe duty cycle" range. When you raise fuel pressure, you can get some HP more. When you provide high octane fuel you can again get bit higher. But not above 300HP (again. talking about engine power). That is bulletproof-safe power and you can run it every day like that. Not just for 10 seconds during drag race.

Last damn good point is age of engine it self. Most of those engines are 15years old and has more than 100k (kilometers or even miles). How much they lost from "brand-new-stock" power? In my opinion 10-20%. No problem.

Note: some say every 1°C of ambient temperature up can take 1% from power from your engine. So dyno during sunny day (50°C ~ 122°F) will be different than in spring when is around 10-20°C (50-68°F). That is why I do not care to say "stock ST205 power is 245...250...255HP". It really has no sense to point 10HP difference in engine like this.

Next question is, can the ct20b ceramic wheel handle 17-17.5 psi daily?

i think so, i think the main thing is the oil supply. if you can take off your oil feed and return pipes and clear them out you might save your turbo