boosted single questions

[xxsenceo89x]

i got a z6 block that im going to be using. im aiming for around 250hp on the vitara setup.

first, do i need to change my oilpump? the z6 appears to be okay condtion but im not sure if it will be able to keep up and hold enough pressure. any recommendations? write ups?

second, should i upgrade the bolts that hold the crank to arps or are the old ones fine? im using arps for the head cause apperently they expand. this got me wondering, do the bottom ones expand 2?

how hard is notching? i dont feel like giving a shop money if i can shave a little metal off myself. any tips.

thanks

 

[Autoworks]

i got a z6 block that im going to be using. im aiming for around 250hp on the vitara setup.

first, do i need to change my oilpump? the z6 appears to be okay condtion but im not sure if it will be able to keep up and hold enough pressure. any recommendations? write ups?

second, should i upgrade the bolts that hold the crank to arps or are the old ones fine? im using arps for the head cause apperently they expand. this got me wondering, do the bottom ones expand 2?

how hard is notching? i dont feel like giving a shop money if i can shave a little metal off myself. any tips.

thanks

If the pump is in questionable condition I would suggest changing it. Has the motor had any oiling problems? Bearing problems? Pull the oil pick up off and see if there is any trach in it.

The stock main bolts for the girdle will be sufficient.

Notching is not difficult. If you have access to an air compressor and grinder?

A few good write ups on notching are at www.theoldone.coom

 

[xxsenceo89x]

i havent ran the motor. i just picked it up and ripped it apart. the oil pick up is fine. i read somewhere that the single cam oil pumps fail and bearings go. i was just wondering cause its going to be pumping oil to a turbo along with the motor.

 

[ryan89crx]

read your helms on how to check your oil pump clearances and whatnot to see if it is still good. chances are it is though.

ARP doesnt make main bolts/studs for D motors

 

[Autoworks]

If the pump checks out good then use it

 

[ryan89crx]

If the pump checks out good then use it

yup! rota92 was using a stock z6 pump that had 250k+ miles on it in his 500+hp sohc

 

[Autoworks]

yup! rota92 was using a stock z6 pump that had 250k+ miles on it in his 500+hp sohc

They usually last. Whenever I order one from Honda the parts guys are always like "Oil pump, WTF for, they never go out" So they work well, and generally last long.

 

[xxsenceo89x]

i was just confirming they could supply enough psi or w.e

 

[got traction]

they are like 100 bucks from honda...why risk it?

 

[slowhatch]

i would replace the t-belt, water pump, and oil pump. they're cheap insurance. also, find out if you need to hone/bore your block before you buy pistons.

 

[ryan89crx]

they are like 100 bucks from honda...why risk it?

$140 or more

some people are on a budget

 

[Going-West]

$140 or more

some people are on a budget

If you're on a budget you shouldn't be doing somethinga s drastic as boosting a non-factory turbo car. That being said, stock oil pumps last a long time and are very reliable so you don't need to replace it...

 

[got traction]

$140 or more

some people are on a budget

so if your on a budget and you cant afford engine management do you not use it? whats the point in building a motor but using parts that are old? i understand its a budget build, cause i did the same build but its only 100 or so bucks.

 

[TiiM iiS l3eAsT]

agreed when rebuilding the motor dont cheap out....get a new:

water pump, oil pump, timing belt, and bearings...should also get some ARP headstuds.....maybe all new gaskets.....new fuel pump if you plan to run a lot of boost down the road

 

[ryan89crx]

If you're on a budget you shouldn't be doing somethinga s drastic as boosting a non-factory turbo car.

why not? my first kit only ran me about $700 and i never once had an issue with it. just because you think something is necessary, doesnt mean that everyone thinks so...

so if your on a budget and you cant afford engine management do you not use it? whats the point in building a motor but using parts that are old? i understand its a budget build, cause i did the same build but its only 100 or so bucks.

tell that to rota92, who ran 9s on a 250+k OEM oil pump

like i said, if it is in spec according to your Helms, there is no reason NOT to use it. throwing money at a build isnt the best way to go about it

 

[Going-West]

why not? my first kit only ran me about $700 and i never once had an issue with it. just because you think something is necessary, doesnt mean that everyone thinks so...
tell that to rota92, who ran 9s on a 250+k OEM oil pump

If spending a hundred bucks or so is a huge deal, you shouldn't be spending several hundred or thousand on your car. What if something goes wrong and you've already used your whole budget buying the parts? Then you don't have a car.

 

[killer_siller]

because it's not a part that wears. at all. the only reason it would be out of spec is if it was run dry or there was a bunch of crap in the oil. so short of pouring antifreeze into your dipstick tube, you shouldn't be out of spec. check it. if it's fine, use it.

hondas normally run quite higher oil pressures than other engines (mainly because of VTEC functionality). i've seen a k20 turbo that needed a restrictor because the oil pressure was too high and was causing blow-by in the CHRA!

in short: if it is within spec, use it, otherwise buy another OEM honda one.

 

[TiiM iiS l3eAsT]

why not? my first kit only ran me about $700 and i never once had an issue with it. just because you think something is necessary, doesnt mean that everyone thinks so...
tell that to rota92, who ran 9s on a 250+k OEM oil pump

like i said, if it is in spec according to your Helms, there is no reason NOT to use it. throwing money at a build isnt the best way to go about it

just bc his oil pump is good doesnt mean other ppls are.....not tryin to fight just makin an opinion

 

[Autoworks]

The point ryan89cx is making is that if you have a used pump that still checks out in spec and is in perfect working order, then it is fine to reuse it. Honda pumps tend to last, and will deliver plenty of oil pressure. BUT if the pump is out of spec or there is trash in the pickup then buy another one. He's not saying don't buy one, he's saying buy one if needed, there is no need to throw $170 (which is what a 15100-Po6-A02 D16Z6 oil pump lists for here) at a pump if the one you have is in perfect shape...put that $$ towards something else (OE headgasket and ARPs)

 

[got traction]

i still dont see the point in tearing down a motor then putting some new and some old parts back when you rebuild it