7 bolt build

[AWDforthewin]

Okay so in the next few months I will be starting to build a motor for my car.. I do daily drive the car and I NEED it to be able to withstand 600hp without having to worry about stuff breaking.. That being said..

I really really don't want to find a 6 bolt to swap in. I have an extra 7 bolt on hand I was going to build.. What would your opinion be? My only worry is crankwalk...

And what internals would you use (brand,style,size)?

 

[CruDSM]

Okay so in the next few months I will be starting to build a motor for my car.. I do daily drive the car and I NEED it to be able to withstand 600hp without having to worry about stuff breaking.. That being said..

I really really don't want to find a 6 bolt to swap in. I have an extra 7 bolt on hand I was going to build.. What would your opinion be? My only worry is crankwalk...

And what internals would you use (brand,style,size)?

Crankwalk shouldn't be any problem. I too shave a 7bolt i am building and I have done much research. I would say simply search all forums Damn near every question will be answered once twice or three hundreds times. Also there are build journals you can refer to..I check the dyne challenge forum often to see what is working for others and go off that. Do all maintenance. From what I read stock internals can hold at least 350hp. Check the vendors forum as well.

 

[AWDforthewin]

Crankwalk shouldn't be any problem. I too shave a 7bolt i am building and I have done much research. I would say simply search all forums Damn near every question will be answered once twice or three hundreds times. Also there are build journals you can refer to..I check the dyne challenge forum often to see what is working for others and go off that. Do all maintenance. From what I read stock internals can hold at least 350hp. Check the vendors forum as well.

My biggest concern is the crankwalk hahah... What all can it ruin again if I don't catch it early do you know?

 

[boost97gst]

Wire the clutch switch out. So you dont have to depress the clutch when starting. Bam. Just saved ya from crankwalk! . Dont worry about the 7 bolt. It'll be fine so long as you dont push on a 2700+lb pressure plate every time you start it. Thats where it really comes from, if it happens at all. Can you imagine putting that much lateral pressure on a crank with no oil pressure and starting it a couple hundred times or more? No bottom end would like that, 6 bolt 7 bolt doesnt matter.

 

[BogusSVO]

The big thing is bedding the crank IMHO, the external things you can do will help , but if the assembly is not perfect you can end up with issues.

 

[cait sith]

A six hundred horsepower 4 cylinder Mitsubishi daily driver is a really bad idea.

 

[AWDforthewin]

A six hundred horsepower 4 cylinder Mitsubishi daily driver is a really bad idea.

Not if you know how to drive and have everything set correctly

 

[boost97gst]

can you explain that to me? crank walk wont happen if you press the clutch in softly? or not all the way? sorry to sound noobish

Typically in a high hp/tq mt engine you are going to need a heavy pressure plate. Its pretty simple: With no oil pressure on anything, would it be wise to consistently start the engine with a lateral(side) load upwards of 2900lbs? No. This is why we start the car without pushing the clutch in. Any crank, any bottom end, could only take it for so long before you had play in it. Thrust bearings are not built stock or aftermarket to my knowledge, to handle such immense side loads over and over with zero oil pressure to protect surfaces.
Savvy?

Its the very best, simple way to prevent crank walk. Which is overhyped big time. Especially with the "dreaded" 7 bolts ooooooooh scaaaaaaary .

In fact, if i ever buy a mt for a daily driver i will wire the clutch switch out. Can only help longevity of several components.

 

[AWDforthewin]

Typically in a high hp/tq mt engine you are going to need a heavy pressure plate. Its pretty simple: With no oil pressure on anything, would it be wise to consistently start the engine with a lateral(side) load upwards of 2900lbs? No. This is why we start the car without pushing the clutch in. Any crank, any bottom end, could only take it for so long before you had play in it. Thrust bearings are not built stock or aftermarket to my knowledge, to handle such immense side loads over and over with zero oil pressure to protect surfaces. Savvy? Its the very best, simple way to prevent crank walk. Which is overhyped big time. Especially with the "dreaded" 7 bolts ooooooooh scaaaaaaary . In fact, if i ever buy a mt for a daily driver i will wire the clutch switch out. Can only help longevity of several components.

How does one wire out the clutch / starter switch

 

[njreclipse]

have fun making a 600hp reliable dsm

 

[cait sith]

Not if you know how to drive and have everything set correctly

Obviously you know how to do this no problem since you're asking the most general questions.

Good luck!