Hello,
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The plan for next year is to megasquirt my Rev 2 and run a
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(Lag assist only
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) direct port, wet Nitrous kit.
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.
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.
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.
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My question is, before I go ahead investing time in machining the rev 2 plenum for the Nitrous and boring out the fuel rail making it twin feed etc.
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Is there any fundamental advantage in using a Rev 3 head instead
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(I want to find out now as manifold/fuel rail is not interchangeable)?
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When my stock Rev 2
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(but only 17k miles of use)
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head gasket eventually goes
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(I predict at some point next summer)
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I'll consider doing some headwork when the car comes off the road.
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aswell as swapping the rebuilt CT26 to a CT20B
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-
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So by fundamental advantage I mean one that a rev 2 head could not achieve with retrofitted Rev 3 parts.
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I heard the Rev 3 cams are
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'better',
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can anyone tell me what is different about the profile?
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And can they be retrofitted to a Rev 2 head?
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I know Rev 3 loses T-VIS and this may help peak power figures, but as the car is used for Sprinting I am quite keen to keep TVIS to attempt to maintain low RPM drive-ability
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(being able to stay in gear can save time).
In Summary:
If I bore out the Rev 2 fuel rail and use rev 3 injectors,
would prefer to keep TVIS
(may go for a larger plenum in the future like the ATS manifold),
will be using the Megasquirt map sensor and rev 3 headgasket anyway and will have all winter to port inlets etc.
of my rev 2 head and convert to Rev 3 Shim-Under-Bucket or 1ZZ shimless buckets
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Is there any advantage at all that a rev 3 head would
have over this
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other than the cam profiles IF the cams are not interchangeable?
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Sorry for the long winded question,
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another consideration is that I already have the rev 2 head and all mating parts AND have a spare rev 2 head/engine,
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so if there is no significant real world advantage,
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then it won't be worth me considering.
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Thanks in advance
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Dan