I'm just wondering ways to safely reach that possibly with turbo? I have the hx ?tec type e I doubt that motors worth building but I've seen so many swaps out there sucvh as b16 b 18 lsvtec etc I'm just wondering the easiest one and what you opinion would be ? Information would be appreciated.

Thank you - Alex

 

And I have searches, can't find any builds on the hx motor,

 

B18C1 with 12lbs of boost should get around there. Best bang for the buck engine out there, IMO.

 

anything stock and tuned rite can achieve that. even stock d series have been known to hold 250-300... but if u want more reliable then try a b16 or b18. they are alil tougher from the factory. rods wise.

 

yeah i think i might just rebuild my engine and throw a turbo kit on there not really sure what im gonna do yet though, theres so many things i can do lol

 

no dont do that. if you want to turbo a d then get a y8 or z6. 180 on a stock turbo d is good for a reliable dd. 250-275 is rebuild country for a d. go ls turbo.

 

PSI is only relative to each different turbo, 12 psi on a little dsm t25 isn't nearly the same as 12 psi on a gt3037, etc. But I see what you mean!

OP, why 250-275?

 

its good to see you are working with a HP goal and now a PSI goal because as it was stated different turbos running the same PSI have different results. What you are really looking at is can the cylinder walls hold up to that much total pressure.

if you arent looking to "build" then I would definitely go with an ls motor, have the bearings replaced and run ARP hardware in the bottom end and run 14-16lbs daily on a GOOD tune- tune is the key.. make sure you upgrade your fuel system properly no matter what you choose.. pump, injectors, etc

 

Alexpbnj, I believe the HX head can have the internals changed to make it the same as a Y8 head, which are the same as a Z6 head. Look into it, it would save you a lot of work. Then boost that, drive it and save your money until it blows and throw a B18C1 in there.

A power number is better than a boost pressure when talking about boosting your motor. As it's been said, different turbos, different compression engines, etc will make different amounts of power. You could run 5 or 15 lbs with the same turbo, depending what your compression is.

And jonathan13, why replace bearings on a good motor? Honda bearings have been proven to last 300k miles easy and they are probably the best ones out there. It's even been proven that used bearings make more power. If it's not broke, don't fix it.

 

on stock D

for DD dont leave it stock at 250 hp, rods/pistons, and replace the timing/ water pump, and maybe the oil pump

you'd want a reliable 250hp not a D block on its limits

 

I beg to differ. 250hp on a D block is only about half of its' limits. I've physically seen 2 D-Blocks up and over the 500hp mark.

I've been on this route before though. Buy a new engine, or upgrade the current? You've got to realize that if you upgrade the current engine, you won't be able to drive it, so unless you have another car, it's not really worth it. But I'd rather spend money on a new motor with stock HP ~twice as high and that is capable of much more.

 

i wasnt talking about stock sleeves and valvetrain etc (although i am aware of its capabilities)

but i'll say again and others may agree with me, upgrading rods/ pistons, and brand new timing belt/water pump, and MAYBE the oil pump is HIGHLY recommend if your gonna aim for anywhere in the 200+ hp area

you'll want a reliable d not a d hitting its limits

 

honestly a d on boost will be reaching its limit on the hp that you want. i would just get a b18 non vtec and go boost like that youll have more power and the LS engine is known to hold boost nice and if you fully built the head and get low comp pistons... youll be able to boost 25psi and just balance your crankshaft for 10000 rpm and your engine will last!!!!

 

Agreed. Sorry, I misread your last post.