 Soliciting Opinions, Thinking of building a motor like this.... |
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| ClayPerrine |
 Oct 25 2006, 09:09 AM
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Life's been good to me so far.....  Group: Admin Posts: 16,374 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille 
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I am thinking of building a motor like this for my 914...
Short Stroke 2.8L Six I already have the 76 turbo engine to use as a core. I can buy JE pistions for the cylinders I have, and get the cams reground to the correct profile. The heads on the motor I have would work fine by adding additional spark plug holes and the insert for the MFI injector. I can buy these to use for intakes instead of the pricey S MFI stacks. I should be able to get 280HP out of it. Anyone have any comments, opinions or just want to tell me I am full of (IMG:style_emoticons/default/stromberg.gif) ? |
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| Eric_Shea |
Oct 25 2006, 09:03 PM
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PMB Performance Group: Admin Posts: 19,304 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains  |
QUOTE Eric - what rpm do you run out of room (the engine noses over) coming on at 3500? Comes on HARD at 3500 exactly but I still have the old rev limiter in there... A friend is bringing over some 7300 rotors. |
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| byndbad914 |
Oct 26 2006, 03:40 PM
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shoehorn and some butter - it fits Group: Members Posts: 1,547 Joined: 23-January 06 From: Broomfield, CO Member No.: 5,463 Region Association: None |
QUOTE(Eric_Shea @ Oct 25 2006, 08:03 PM)  QUOTE Eric - what rpm do you run out of room (the engine noses over) coming on at 3500? Comes on HARD at 3500 exactly but I still have the old rev limiter in there... A friend is bringing over some 7300 rotors. Thanks Eric. Clay, I dunno the cam specs on those GE80s but I bet they are done at the 7300rpm range to, or very close to done. Not 9K. I couldn't find specs on google, just this ...GE40 and GE80 cams, which are aggressive non-turbo cams with lots of overlap. Lots of overlap implies tight lobe center, so that will be a peaky cam. My cam has 106deg l/c with 99deg intake (very rough/peaky) and has TONS of overlap. Makes higher peak power but my range is only 2200rpm between max torque and max HP. I don't think the GE80 will get you to 9K and be making power. Just a little more fuel to support Brad's comment to think about the cams a bit more if 9K is your goal. My WAG is that you will need something in the 275deg @ .050" range and up to get there. That is a MONDO cam profile. If you build it tho' I want to witness it around 9K for sure. I haven't heard a 6 up there yet - many a V8 and it is a whole new experience... |
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Posts in this topic
ClayPerrine Soliciting Opinions Oct 25 2006, 09:09 AM
Jeroen those throttle bodies have a fuelrail, so why make... Oct 25 2006, 09:21 AM J P Stein Step #1
Gather up a whole pee pot fulla money........ Oct 25 2006, 09:53 AM ClayPerrine The parts are not that hard to find. You use a 2.2... Oct 25 2006, 10:27 AM
J P Stein QUOTE
byndbad914 |
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