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11-26-2008, 02:11 AM | #55 |
Drives: 2008 Yaris hatch Join Date: Oct 2008
Location: Las vegas, NV
Posts: 183
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We are doing testignon the ball/socket joint to see if there is enough flex for motor rotation, but if not there will have to be a flex joint. It looks like stainless constructionis important to some so we will investigate pricing for stainless.
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11-26-2008, 02:19 AM | #56 | |
Drives: 2008 Yaris hatch Join Date: Oct 2008
Location: Las vegas, NV
Posts: 183
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Multiport fuel injection means there is one fuel injector per cylinder usually located in the head or intake port aimed directly at the back of the intake valve. The sequential or batch fire refers to whether the individual injector is fired or the enitire bank is fire for each cylinder. Sequential is prefered and is usually the choice at lower engine speeds where emissions are lowered, but many sequential systems revert to bacth at higher engine speeds. Regardelss, if you lose an injector in a multiport injection system, the individual cylinder will suffer-which will be registered by the oxygen sensor (usually located in the joined collector of exhaust manifold). Losing an injector can literally ruin a cylinder from detonation. The yaris has individual injectors for each cylinder-they do not spray in any other cylinder. Hope this clears things up.
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11-26-2008, 02:29 AM | #57 |
Thanks a lot for looking into the stainless option for us Richard.
Also, ...about that split header flange..... How are you bolting this thing onto the cylinder head? Are you not using the center bolt (i.e. only using 4 header bolts)? |
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11-26-2008, 03:04 AM | #58 |
Drives: Silver 2007 3Dr - Gryph Join Date: Jul 2007
Location: Kansas City, MO, USA
Posts: 310
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What the other guy said, thanks for looking into the stainless pricing, Richard! If it turns out overly prohibitive, mild will do, but thanks again for checking on the stainless for us.
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11-26-2008, 01:44 PM | #59 |
Drives: 2008 Yaris hatch Join Date: Oct 2008
Location: Las vegas, NV
Posts: 183
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The prototype header employed a split flange to facilitate installation, but production pieces will have a single flange like the stock ex man. The header will be two piece, but the connection will come down on the primary tubing. The header has to be a 2-piece design to allow for installation. On the prototype, we did use the center bolt but with a washer to secure both halves-it worked great.
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11-26-2008, 05:27 PM | #60 | |
Drives: Yaris 4dr 2008 Join Date: Nov 2008
Location: victoriaville,Qc,Canada
Posts: 28
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Maybe 304 would work fine on non turbo application, someone's got to try |
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