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Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Jan 17, '04 From Illinois Currently Offline Reputation: 0 (0%) ![]() |
Car porn for you perusal:
![]() -------------------- QUOTE(lagos @ Jul 10, 2006 - 1:55 PM) [snapback]454118[/snapback] i know your trying to do the right thing for your motor, but this is one of those times where you should just trust the guys who have had their swaps for a while and have done a ton of research into this. |
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Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Jan 17, '04 From Illinois Currently Offline Reputation: 0 (0%) ![]() |
Ah yes, the infamous post by RickyB from 2004 where he essentially argues that the stock manifold is not a performance limitation.
Perhaps you missed this reply (which was left unanswered) from a high hp 3sgte builder in the same thread: QUOTE What I noticed was left out of this post for some reason is a description and explanation of which setup will yield the greater volumetric efficiency... or is performance defined as turbo response? Or how about some details and explaination into determining what kind of pressure differential you want between your intake/exhaust... factoring in camshaft profiles and cam timing. Maybe your leaving out some details?? No?? To say that a decent shorty manifold will spool a turbo faster.. well... i thought that was common knowledge. But for you to just go ahead and make a post saying that tubular style exhaust manifolds will yield "less performance" without far more supporting evidence here is pretty damn... well... ignorant. There is a lot more to consider in engine performance and turbocharger system efficiency other than "short = hot = spools faster = better" Based on what you say in your last paragraph... lets take it as vague as you say it.... do you think that if someone was trying to build a 1000hp 2.2L engine, they should use the stock exhaust manifold ported and coated? BTW I am not trying to argue with you, I am just trying to get your educated feedback for more detailed explanation. I am still in the middle of my hands on R&D of exhaust manifold design so I am not prepared for a dispute with someone I am assuming must have done some R&D on this. Or, perhaps you missed this post of of Ricky's from 2006: QUOTE I'm getting very close to my original goal of making a safe, daily-driving 350rwhp at 15-16psi on 91 octane. I have one more trick in mind that I think will get me there. I am going to ditch the stock exhaust manifold and have Hoover at Turbohoses build me a tubular exhaust manifold. (emphasis added)I have argued many times against poorly made tubular manifolds, but I am willing to try a well made one with good ceramic coating to see what it buys. check it I think Ricky's opinions have evolved some - perhaps yours should too. -------------------- QUOTE(lagos @ Jul 10, 2006 - 1:55 PM) [snapback]454118[/snapback] i know your trying to do the right thing for your motor, but this is one of those times where you should just trust the guys who have had their swaps for a while and have done a ton of research into this. |
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Lo-Fi Version | Time is now: February 21st, 2025 - 8:35 AM |