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645 Posts
Discussion Starter #1 (Edited)
My D16Z6 Build, shooting for 400hp. Had it all built by bill from apex.

Very healthy motor, Using Mobil synthetic.

Head- BRAND NEW OEM HONDA GASKETS
Ported and polished
Supertech Valve Springs and Retainers
Gasket matched
5 angle valve job
Bisimoto Stage 3 Camshaft N/a
Bisimoto Cam gear
Skunk 2 Pro Series intake manifold
B16 Throttle body
Brand new ARP headstuds

Bottom End-
Ycp Vitara Pistons, 8:5:1 Low compression
Tuner Toyz h Beam Rods
Golden eagle block guard
Ported z6 Pump, idle is 25 psi, (good oil pressure )
Tapped oil pan
Innovative 75a Motor mounts, very stiff
Acl rod and main bearings
ac and ps deleted

Trans-
S40 ex trans
3800 Miles on Xtd stage 3 clutch
7lbs flywheel
5 Speed Manual
Short shifter



I already bought a precision sc44 60 trim turbo. i am looking to get 350-400 hp.

I broke in the motor with 3800 miles on it, but everytime i step on the gas and let go, it sounds like theirs a rod knock? or maybe it could just be a gasket to my exhaust? maybe a exhaust leak? the oil pressure is really good.....but im not sure...?

What is the cheapest turbo good turbo manifold out there that i could get??
 

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1992 Civic Si
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1,671 Posts
Rod knock shows up under load, not under decel. Unless it's really bad and it's doing it 100% of the time.

Cheapest good mani and turbo is an ebay cast manifold, and a genuine garrett T3/T4. Should be 700 bucks in total.
 

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racist-bigot-sexist-homophob
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11,892 Posts
If you've ever heard a rod knock it's damn near impossible IMO to mistake it for anything else.
 

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Discussion Starter #5
I've heard a rod knock before on my buddys car, he was the one who told me that it sounds like one when I was coming up his street, but then again at idle, it doesn't sound like a rod knock at all... My oil pressure at idle is 25 psi, I ported
the oil pump
 

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487 Posts
Are you using the regular 75mm ones? If so that's probably piston slap. Get use to it because it's going to be louder when the weather gets colder.
 

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racist-bigot-sexist-homophob
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My gsr never knocked at idle. Matter of fact it was so damn quiet you could hear the injectors. It damn sure knocked under load though.

Fuck shitty machine work.
 

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94 Civic Hatch
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334 Posts
its prolly the vitara's

pretty much every vitara build i've seen has a wierd rattle/knock sound almost like the pistons are hitting the valves.

if it sounds like this i believe its just the vitara's it seems like they all do it....
YouTube - Vitara D16 idle, rev, and a short rip.
 

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Discussion Starter #14
its prolly the vitara's

pretty much every vitara build i've seen has a wierd rattle/knock sound almost like the pistons are hitting the valves.

if it sounds like this i believe its just the vitara's it seems like they all do it....
YouTube - Vitara D16 idle, rev, and a short rip.
yes my car does sound like that at idle, but im talking about the sound of it when im pressing on the gas and letting it go
 

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Discussion Starter #20
Fixed problem, I called the machine and he said it would be a piston slap due to the vitara pistons. I also looked under the car and 2 of the bolts that hold my exhaust together came loose due to the solid motor mounts I have. I have changed the gasket and drove the car today and no more noise!!!
 
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