Yup once you vent that block the $$$$ skyrockets, although I don't agree with drop-ins but I'm also not an engine builder.

- Bryan

 

Out of curiosity, what would you recommend? Sleeve it and all?

Or are you saying, keep the stock motor...

 

I'm in the camp of doing a proper engine build, with the motor out of the car so everything can be balanced and checked, yada yada.

Again, I'm not a engine builder but I believe buschur and AMS have found no need for sleeving the 4B11... I could be wrong though, as I am not an engine builder.

- Bryan

 

Oh, yea, well that is going to happen, at least with my car. It will all be out of the car and all the clearances and etc will be checked.

I see what you are saying though, rather than just pulling the head and leaving the motor in etc.

I guess mine is a "proper" build, not by choice though, lol. Well it will be.

 

I like the 'proper' idea as well. It's the extra kilobucks in labor that I wasn't inclined to deal with.

Gates' brand new motor failed, so obviously there's no guarantees with anything you do.

 

No Sleeves here Drop in Pistons/Rods. You can also change the rod bolts with the motor in the car, just drop and pan, etc. We pushed the stock block to 680whp with countless dyno pulls and daily driving before the rod bolts let go.

Michael

 

and what happens when the rod bolts let go...

 

You do an unscheduled oil change out the back of your block!

 

^That, then the ground looks like this...

 

Do you recall what the torque was? I'm not convinced that hp is the problem. It seems that we've had a lot more cars with stock-sized turbos have motor failures than the large turbos (which tend to have high hp and modest tq).

 

680 whp @ 8000rpm:

680 = tq * 8000 / 5252
= 446 tq


680 whp @ 7000rpm:

680 = tq * 7000 / 5252
= 510 tq

 

Your block receives a window.

 

darton sleeves in mine, as my bores were scored

 

Mike,

Would it be your suggestion to install dropin Pistons/Rods if the goal is 400whp for a DD? Or do you think it's not neccessary at that power level to maintain reliability?

 

^I say again, if you can afford drop in's, do it.

I am probably going to end up parting my X out and selling it. Looking to go Evo 9. Little cheaper and wider array of parts. Plus I don't want a $60,000 evo right now, perhaps over time, but this is too much to stomach at once.