I'm sure this has been asked a lot but I can't seem to find it. what will a stock 7mgte motor handle with a mhg? hspwr and psi
stock 7mgt limits?
- Thread starter MKiiiturbodrift
- Start date
There is a member here who has a garrett gt42 who did 750rwhp on a stock 7mgte at 32psi, with good tunning they can take a lot.
^^^^^ I am sorry but I don't buy it and if it's true it was a fluke. I know the 7M oil and cooling system suck, especially on heavy demand and heavy power applications, 750hp is quite ab it and 32 psi of boost is a lot, not even sure how well a stock head would flow it or even flow enough to make that kind of power.
You may be able to handle that kinda load for a bit but sooner or later its gonna catch up and you'll pay dearly.
I would say beyond 400 to 450 you may want to think about beefing up at the very least the oil system and head and since it requires a engine pull may as well do it all, otherwise you'll eventually spin a bearing, throw a rod or otherwise destroy the engine.
You may be able to handle that kinda load for a bit but sooner or later its gonna catch up and you'll pay dearly.
I would say beyond 400 to 450 you may want to think about beefing up at the very least the oil system and head and since it requires a engine pull may as well do it all, otherwise you'll eventually spin a bearing, throw a rod or otherwise destroy the engine.
http://www.youtube.com/watch?v=l-jaenWRSdg
I believe thats the one. I have no info on the car/owner or setup though.
I believe thats the one. I have no info on the car/owner or setup though.
I am fairly confident that a 500whp run ticket (at least once) and then 400~450whp range "daily" (regularly) drivable stock bottom end (lots of other stuff) is not completely foolhardy. (I would emphasize BALANCE in mods here...)
Initial integrity of your motor and maintenance, with a little "good fortune" will certainly make a difference.
...on the other hand, a poorly running BONE STOCK unit can throw its guts all over the place in an instant with an "abused childhood" or poor maintenance and foolhardy operation.
-crisp
Initial integrity of your motor and maintenance, with a little "good fortune" will certainly make a difference.
...on the other hand, a poorly running BONE STOCK unit can throw its guts all over the place in an instant with an "abused childhood" or poor maintenance and foolhardy operation.
-crisp
This is one of those questions that is FWP - fraught with peril.
The stock internals on the 7M can handle a lot of power. What they cannot handle is a mistake. A little bit of detonation, a tiny bit lean at the wrong time... and POP.
Forged internals give you some leeway to play with.
Alternatively, a standalone ECU gives you the ability to run that perfect tune. The stock ECU doesn't, of course, the maps in it were designed around the original specifications, and can only be stretched so far.
DrJonez ran 500+ rwhp on a stock shortblock for years without any problems - but he is an expert tuner, and was using an AEM to run things. How much can *you* run? Depends on way too many factors... what other mods you have, ambient temp and humidity, fuel quality, altitude, coilpack health, plug condition, and whether a butterfly flapped it's wings in China last year.
So... extrapolating from your username and question, I'm guessing you want to try to build a drift car from a Supra. Quite possible - it's been done several times - and I rather doubt you'll need to go that high in the horsepower range to do it. More to the point is the question of how long can you rev it to 7000 rpm before springs in the head start to fail.
The stock internals on the 7M can handle a lot of power. What they cannot handle is a mistake. A little bit of detonation, a tiny bit lean at the wrong time... and POP.
Forged internals give you some leeway to play with.
Alternatively, a standalone ECU gives you the ability to run that perfect tune. The stock ECU doesn't, of course, the maps in it were designed around the original specifications, and can only be stretched so far.
DrJonez ran 500+ rwhp on a stock shortblock for years without any problems - but he is an expert tuner, and was using an AEM to run things. How much can *you* run? Depends on way too many factors... what other mods you have, ambient temp and humidity, fuel quality, altitude, coilpack health, plug condition, and whether a butterfly flapped it's wings in China last year.
So... extrapolating from your username and question, I'm guessing you want to try to build a drift car from a Supra. Quite possible - it's been done several times - and I rather doubt you'll need to go that high in the horsepower range to do it. More to the point is the question of how long can you rev it to 7000 rpm before springs in the head start to fail.
suprarich;1290553 said:
I haven't heard from him lately....is it still running on that power?? :evil2:
Well i ask because we are going to rebuild this engine and we are trying to decide if rebuilding with OEM parts will suffice our not. Our goal is 400-450hp and around 20psi
LOL. Yeah I'm sure X-man is lying to everyone. And those videos were fake.
The answer is know one really knows because know one has pushed the 7M hard enough to break anything from power alone. So the answer is OVER 750rwhp. And I don't care what engine it is, if you get detonation at that power level, it's toast.
The answer is know one really knows because know one has pushed the 7M hard enough to break anything from power alone. So the answer is OVER 750rwhp. And I don't care what engine it is, if you get detonation at that power level, it's toast.
jdub;1290836 said:
Of course not. I am just saying that there is no need to continue something like this we now know, and it is time to move on.
If I was a MOD I would have closed it already
-Eathen
Agreed ::dead horse::
A stock 86.5 can spin a bearing or such. Just like a 750hp monster will eventually breakdown, its all about time and tune. The variables are almost infinite.
A stock 86.5 can spin a bearing or such. Just like a 750hp monster will eventually breakdown, its all about time and tune. The variables are almost infinite.
92TealSupra;1290847 said:Of course not. I am just saying that there is no need to continue something like this we now know, and it is time to move on.
If I was a MOD I would have closed it already
-Eathen
And, your not...something that will likely never happen.
So far, Will made a statement based on ignorance and he's getting slapped around for it. No inappropriate behavior though.
It is time for the thread to get back on track.
"Stock" to me is off the showroom floor, soon as you change anything at all it's no longer "stock".