300ci torque?
Elder User
Joined: Jul 2004
Posts: 911
Likes: 2
From: Northern Virginia, USA
About 260ft-lbs peak, and well above 200ft-lbs from just off idle to around three grand or so. About 150HP in stock trim. With a cam and some mild work, torque goes well above 300, HP above 200 and the RPM range extends out a lot further (stock cam signs off at 3500).
Postmaster
Joined: Oct 2006
Posts: 4,056
Likes: 0
From: Waterford, CT
Originally Posted by BigBlue88
About 260ft-lbs peak, and well above 200ft-lbs from just off idle to around three grand or so. About 150HP in stock trim. With a cam and some mild work, torque goes well above 300, HP above 200 and the RPM range extends out a lot further (stock cam signs off at 3500).
where did u find this data? is there some kind of calculator that can tell power (Torque and HP) increases?
Elder User
Joined: Jul 2004
Posts: 911
Likes: 2
From: Northern Virginia, USA
Been trolling the inline six forums for three years or so, since I got my first 300ci (88 EFI). Just search the forum and read the posts. Some people go to real dyno shops and you can find their dyno plots in their galleries. Silver Streak comes to mind.
Postmaster
Joined: Mar 2005
Posts: 2,949
Likes: 6
From: Earth
ebay - got the Desktop Dyno software for ~$15 to my door. The only drag is that the rpm range starts at 2,000 so you can't see the off idle numbers.
Oh, and there's not a 300 I6 option. I used an inline four, changed the boreXstroke and number of cylinders to get the right displacement.
FWIW, the "built" 300 I suimulated using the dyno software worked out like this: Comp cams 252, 4barrel, headers, etc. - torque peak was 342 @2,000, HP peak was 217 @4,000.
Oh, and there's not a 300 I6 option. I used an inline four, changed the boreXstroke and number of cylinders to get the right displacement.
FWIW, the "built" 300 I suimulated using the dyno software worked out like this: Comp cams 252, 4barrel, headers, etc. - torque peak was 342 @2,000, HP peak was 217 @4,000.
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Post Fiend
Joined: Jan 2000
Posts: 5,860
Likes: 4
From: Metro Detroit (Redford)
Considerably more torque and hp stock with EFI than the older carburated models. I think something like 120 hp carb version vs around 150 hp EFI.
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