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Old 10-13-2004, 03:54   #1 (permalink)
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1.7 rollers and idle

i'm eagerly awaiting my crane 1.7's, hopefully fit em this weekend...

Will they make any difference to the idle of the car??? or change the note of the exhaust again?
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Old 10-13-2004, 05:09   #2 (permalink)
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Re: 1.7 rollers and idle

Some exhaust note change. Idle shouldn't change much if at all. Reset ECU (battery off/on) to help ECU adapt. Don't expect a big difference esp with E7 heads. Lift increase is only of benefit when the heads can flow more at higher lift. The exhaust and extractors will be the big difference offers in your planned setup. 1.7's are good for future possibilities though. Porting??? GT40-p's???
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Old 10-13-2004, 07:22   #3 (permalink)
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Re: 1.7 rollers and idle

I reckon the idle is a bit more lumpy than standard with my st2027s installed. Exhaust note is different as well - it's definitely louder than before, and a little bit of a drone at around 80km/h.
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Old 10-13-2004, 08:08   #4 (permalink)
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Re: 1.7 rollers and idle

As already said, there may be a little difference to exhaust note but there isn't that much difference. Idle will not change as the stock cam is small even with the 1.7 ratio.
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Old 10-13-2004, 16:59   #5 (permalink)
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Re: 1.7 rollers and idle

I didnt notice an idle change with mine, except for the st 2027's are a hell of a lot quieter than the factory 1.6 rollers...
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Old 10-13-2004, 19:48   #6 (permalink)
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Re: 1.7 rollers and idle

thanks guys...

after i put the gt40 manifold on i noticed a completely different exhaust note....much deeper...

anyone got a rough idling injected windsor??? i've never heard one that has a hot carbied motor idle sound/quality.... i could always pull a vacuum line off to get the desired effect :)
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Old 10-13-2004, 19:50   #7 (permalink)
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Re: 1.7 rollers and idle

if anyone is interested, i can put you iun touch with a guy that'll supply crane 1.7 rollers new @ $350, and other stuff fairly cheap too....
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Old 10-13-2004, 20:43   #8 (permalink)
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Re: 1.7 rollers and idle

I make observations on note after roller rocker installation here

...my car just got faster...***lotsa pics***

and after manifold installation here

Goodbye HO(e)
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Old 10-13-2004, 20:47   #9 (permalink)
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Re: 1.7 rollers and idle

mine used to idle lumpy, then i got a computer installed and its smooth as now....

The only reason it ran lumpy was because it was running really rich at idle
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