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-   -   Stock engine @ 400hp - y not ? (https://www.miataturbo.net/engine-performance-56/stock-engine-%40-400hp-y-not-91630/)

elior77 12-22-2016 09:21 AM

Stock engine @ 400hp - y not ?
 
Hey,

I started my build of 400hp, as I see it, upto 7200rpm the only real weak spot is the rods, if I can tune it on the safe side with no detonation, I understand I can get away with stock pistons and stock all the rest.

How wrong am I ?

Currently I run 300hp with a turbo and injectors maxed out, I got a 6pd transmission.
I'm looknig at 1000cc injectors and 6265 with a 3" DP.

Let me know
Thanks
Elior

Miater 12-22-2016 09:27 AM

Typing is cheap, show me with pics and vids.

Bronson M 12-22-2016 09:30 AM

300+ posts and you're asking this question?

elior77 12-22-2016 09:34 AM

Come on guys, I know all stock but rods and pistons (upto 7200rpm), I know that pistons are prone to heat not torque, I would like to get a solid answer if possible.

pics and vids of what ?

Girz0r 12-22-2016 09:35 AM


Originally Posted by elior77 (Post 1382697)
Hey, ... How wrong am I ?

http://38.media.tumblr.com/65fced39f...iguo1_400.gif?

Jokes aside, since you know you need rods... just do pistons as well. :dunno: Throw in some ACL bearings while it's apart too :party:

elior77 12-22-2016 09:40 AM

patsmx5 gave me some input about stock pistons that can handle 350~ no det.

psyber_0ptix 12-22-2016 10:10 AM

what is happening.

TurboTim 12-22-2016 10:49 AM

Christmas makes some people crazy.

elior77 12-22-2016 10:57 AM

Hanuka here.

sixshooter 12-22-2016 11:05 AM

Mele Kalikimaka!

aidandj 12-22-2016 11:17 AM

Pat cracked a piston at 300 something.

If you have to ask this question you probably won't be able to tune it well enough lol.

ryansmoneypit 12-22-2016 11:23 AM

The only downsides I see here are:

Breaking a stock rod and having it sweep through the engine, ruining everything except the intake and exhaust manifolds. Real possibility.
The above happens on a public roadway, coating the road with oil sending you spinning into a telephone pole and you die. Same goes for the next few cars behind you. Another real possibility IMO.

18psi 12-22-2016 11:38 AM

ugh, another one

elior77 12-22-2016 11:51 AM


Originally Posted by aidandj (Post 1382725)
Pat cracked a piston at 300 something.

If you have to ask this question you probably won't be able to tune it well enough lol.

I can tune all right, I did more then a few high power cars.

Still no real answer why no stock pistons.

Savington 12-22-2016 12:02 PM

Because you'll break one in half at 400whp.

The rods are not the only weak point. They are just the first weak point. There are several others at 400whp.

18psi 12-22-2016 12:05 PM


Originally Posted by elior77 (Post 1382737)
I can tune all right, I did more then a few high power cars.

Still no real answer why no stock pistons.

Your approach is retarded. Youre like the typical village idiot that proposes something absurd, and then no matter what people say you're simply too ignorant and stubborn to actually take the input.

Nothing we say will change your mind.

So then just go for it. Don't keep theorizing and making stupid threads asking "Y NO 400?".....why not 500? why not 600? heck, just go for 1200hp on stock block.

If you're so smart, and such a great tuner, then go do it. Clearly us telling you that you'll blow it up is not sufficient, so instead of repeating the question, just go do it, and prove us all wrong, and post up info on getting it done.

elior77 12-22-2016 12:28 PM


Originally Posted by Savington (Post 1382743)
Because you'll break one in half at 400whp.

The rods are not the only weak point. They are just the first weak point. There are several others at 400whp.

How would the weak points list would look like?

aidandj 12-22-2016 12:29 PM

Here is a wealth of information

BMWidmer 12-22-2016 12:50 PM

If you put on a BW EFR 9180 it will force so much air that it will keep the piston cool :/

elior77 12-22-2016 12:52 PM

Good point


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