1.7 aftermarket heads, anything out there worth looking into, reasonable price/h.p. gain? |
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1.7 aftermarket heads, anything out there worth looking into, reasonable price/h.p. gain? |
orange914 |
Jun 16 2007, 09:31 PM
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#1
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http://5starmediaworks.com/index.html Group: Members Posts: 3,371 Joined: 26-March 05 From: Ceres, California Member No.: 3,818 Region Association: Northern California |
anything out there worth looking into that is reasonably priced that gives any horse power gain? (IMG:style_emoticons/default/confused24.gif)
mike |
Jake Raby |
Jun 21 2007, 10:12 AM
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#2
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
What induction???
These heads are good for 125HP with a 2056 with carbs, using stock FI limits the output to a "safe" 110HP or so.. |
orange914 |
Jun 21 2007, 01:03 PM
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#3
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http://5starmediaworks.com/index.html Group: Members Posts: 3,371 Joined: 26-March 05 From: Ceres, California Member No.: 3,818 Region Association: Northern California |
What induction??? These heads are good for 125HP with a 2056 with carbs, using stock FI limits the output to a "safe" 110HP or so.. it's stock 1.7 d-jet. i will go 96mm 8.0:1 either choice heads i deside, but not touching bottom end. by the way i need to check the cost of 96mm pistons/cyl's if i purchase these heads, do you sell these? what kind of $ do you want for cyl.'s & heads? thanks, mike |
toon1 |
Jun 21 2007, 01:21 PM
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#4
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Senior Member Group: Members Posts: 1,849 Joined: 29-October 05 From: tracy,ca Member No.: 5,022 |
What induction??? These heads are good for 125HP with a 2056 with carbs, using stock FI limits the output to a "safe" 110HP or so.. it's stock 1.7 d-jet. i will go 96mm 8.0:1 either choice heads i deside, but not touching bottom end. by the way i need to check the cost of 96mm pistons/cyl's if i purchase these heads, do you sell these? what kind of $ do you want for cyl.'s & heads? thanks, mike You might be in for a prob. with the stock 1.7 injection sys. |
orange914 |
Jun 21 2007, 02:08 PM
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#5
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http://5starmediaworks.com/index.html Group: Members Posts: 3,371 Joined: 26-March 05 From: Ceres, California Member No.: 3,818 Region Association: Northern California |
What induction??? These heads are good for 125HP with a 2056 with carbs, using stock FI limits the output to a "safe" 110HP or so.. it's stock 1.7 d-jet. i will go 96mm 8.0:1 either choice heads i deside, but not touching bottom end. by the way i need to check the cost of 96mm pistons/cyl's if i purchase these heads, do you sell these? what kind of $ do you want for cyl.'s & heads? thanks, mike You might be in for a prob. with the stock 1.7 injection sys. acording to auto atlanta the 1.8 heads/96mm is quite usable with stock d-jet. he suggested checking emmisions readings (lean/rich) and tweaking if needed. i.e. use cht sender resistor, increasing fuel pressure and one other thing i dont recall. i remember talking to you about the stock fuel injector flow rate high ability and thinking how the engine could be fattened up across the range with incressing the fuel pressure. if there is information out there that d-jet cant support 1911cc i'd really like to hear it before i melt $1500! any input is valued (IMG:style_emoticons/default/aktion035.gif) |
G e o r g e |
Jun 21 2007, 02:15 PM
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#6
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Dr Group: Members Posts: 1,905 Joined: 20-September 05 From: Southern Cal Member No.: 4,832 Region Association: None |
according to auto Atlanta the 1.8 heads/96mm is quite usable with stock d-jet. he suggested checking emissions readings (lean/rich) and tweaking if needed. i.e. use cht sender resistor, increasing fuel pressure and one other thing i dont recall. i remember talking to you about the stock fuel injector flow rate high ability and thinking how the engine could be fattened up across the range with increasing the fuel pressure. if there is information out there that d-jet cant support 1911cc I'd really like to hear it before i melt $1500! any input is valued (IMG:style_emoticons/default/aktion035.gif) Mike, your stock injection will work , it just can't be as finely tuned as carbs or aftermarket efi your already limiting the 1911 by not changing cams, so i would not worry about the slight loss of possible power by running your stock d jet. maybe try and get your hands on some 2 ltr intake manifolds, |
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