 1.7 aftermarket heads, anything out there worth looking into, reasonable price/h.p. gain? |
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| 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 |
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Replies(1 - 19)
| G e o r g e |
Jun 17 2007, 12:24 AM
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#2
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Dr Group: Members Posts: 1,905 Joined: 20-September 05 From: Southern Cal Member No.: 4,832 Region Association: None 
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QUOTE(orange914 @ Jun 16 2007, 08:31 PM)  reasonably priced 1st what reasonably priced to you? QUOTE power gain send your heads to HAM let him fill the spark plug holes, re-tap in 2 ltr location and do a polish job on them that should net you a few HP's they say you pick up 10 from the plug relocation |
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| mills914/s |
Jun 17 2007, 10:19 AM
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#3
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Member Group: Members Posts: 253 Joined: 23-December 06 From: Coeur D'Alene... IDAHO Member No.: 7,363 Region Association: Northern California |
Where do they put the plug on the other heads...Does anyone have a pic? Im interested in doing this to my 1.8 but not sure.
Seth |
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| Mueller |
Jun 17 2007, 12:24 PM
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#4
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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I think only 1.8/2.0 replacment heads are available right now, I believe these are the base heads HAM uses that he supplies to Jake.
aircooled.net cylinder heads (don't mind the picture) $399 each, and the stock valves, guides and all that related stuff sucks from the factory and should be replaced before use. without looking at HAMs site, I want to say about $1500 would get you a set of new bolt-on heads |
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| orange914 |
Jun 17 2007, 06:29 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 |
QUOTE(George H. @ Jun 16 2007, 11:24 PM) QUOTE(orange914 @ Jun 16 2007, 08:31 PM) reasonably priced 1st what reasonably priced to you? QUOTE power gain send your heads to HAM let him fill the spark plug holes, re-tap in 2 ltr location and do a polish job on them that should net you a few HP's they say you pick up 10 from the plug relocation i guess what i mean is it's money well spent in return for reliability, longevity and horse power verses possible engine swap/upgrade. i'm reluctant to: 1 get into any bigger projects than needed unless it's really benifitial 2 keeping in mind i'd prefer stockish w/ added h.p. (never know which way ca. smog will go) i've been thinking along the lines of quality (oversized?), bumped compression pistons/cylenders. also you've interested me with the improved heads. with this set up i would think (IMG:style_emoticons/default/idea.gif) i maybe pull 20? more reliable h.p.? i've always wondered why sorry, type IV's had such low compression and required such high octain. i have to assume its just design. smog wise they do produce alot of h.c. or is it also that the studs pull out? questions, questions, mike |
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| orange914 |
Jun 17 2007, 06:42 PM
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#6
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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 |
QUOTE(Mueller @ Jun 17 2007, 11:24 AM) I think only 1.8/2.0 replacment heads are available right now, I believe these are the base heads HAM uses that he supplies to Jake. aircooled.net cylinder heads (don't mind the picture) $399 each, and the stock valves, guides and all that related stuff sucks from the factory and should be replaced before use. without looking at HAMs site, I want to say about $1500 would get you a set of new bolt-on heads looked at the link. how would this work out w/ 1.7? makes me wonder if 1.8/2.0 has larger cylendar seats (what ever that machined area is called) in them. would it match up with oversize 96mm cylenders? thats the direction i'm leaning on this repair. if not raced or abused would it be to unreasonable to expect thier stock valves and seats ect... to last? sounds like the only mod. to installing the heads would be to cut hole for plug relocation/ fill old...no? |
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| brer |
Jun 17 2007, 09:15 PM
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#7
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Advanced Member Group: Members Posts: 2,555 Joined: 10-March 05 From: san diego Member No.: 3,736 Region Association: None |
Do you have a set of 1.7's right now?
if you'd like I can send you pics of my 1.7 heads post machine work. There are a couple other things I can send pics of that you might find interesting as well, like 2L plug and chamber shape modifications. |
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| Bleyseng |
Jun 18 2007, 09:18 AM
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#8
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Aircooled Baby! Group: Members Posts: 13,035 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
QUOTE(George H. @ Jun 16 2007, 11:24 PM) QUOTE(orange914 @ Jun 16 2007, 08:31 PM) reasonably priced 1st what reasonably priced to you? QUOTE power gain send your heads to HAM let him fill the spark plug holes, re-tap in 2 ltr location and do a polish job on them that should net you a few HP's they say you pick up 10 from the plug relocation you pick up some from the plug relocation but the 2.0L has improved larger ports. its possible to have some cylinder rings made so you can run 2.0l heads with 90mm cylinders. Have Len rebuild your 1.7 heads with new larger valves 42x36 and improve the ports. Ray Greenwood gets 100+hp outta his 1.7L Djet car. |
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| Tobra |
Jun 18 2007, 09:26 AM
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#9
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Senior Member Group: Members Posts: 1,453 Joined: 22-August 05 From: Sacramento, CA Member No.: 4,634 |
lotta power to be had in a nice set of heads
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| Jake Raby |
Jun 18 2007, 12:42 PM
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#10
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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 |
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| Bleyseng |
Jun 18 2007, 12:50 PM
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#11
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Aircooled Baby! Group: Members Posts: 13,035 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
ah, I see the LE160 can be ordered in 1700 size. (IMG:style_emoticons/default/beer.gif)
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| brer |
Jun 18 2007, 01:06 PM
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#12
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Advanced Member Group: Members Posts: 2,555 Joined: 10-March 05 From: san diego Member No.: 3,736 Region Association: None |
On a budget, if your 1.7 heads are original 914 1.7's just rebuild those.
1.7 heads in 914's are great platforms for simple porting and valve size increases on a budget. Cores are cheap and can be in good shape unlike 2L heads. The 914 1.7 is much more likely to be rebuildable than the others, mine were like new and were original to my car. You CAN get a better performing head done for under 700 bucks. Even if you go to Len, I think it was 800 he qouted me for a rebuild with modified ports and upped valve sizes. That was six months ago or so. And while the relocated spark plug is worth the money, if budget does not allow I wouldn't be upset. Port them, valves guides, seats and go. IMHO |
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| anthony |
Jun 18 2007, 01:57 PM
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#13
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2270 club Group: Benefactors Posts: 3,107 Joined: 1-February 03 From: SF Bay Area, CA Member No.: 218  |
IMHO, there are pretty much no easy/cheap/simple upgrades for the motor that produce significant hp. The best bang for the buck is probably exhaust - 1.7L SSI heat exchangers can still be found relatively cheaply. You can add a Bursch exhaust to that.
The best bang for the buck is to build a 2056 with a decent cam and exhaust. You'll get a solid 115hp and will be able to scratch the tires in 2nd gear. From a stock 1.7 it's a huge hp, and more importantly torque boost. It's even a big torque boost over a stock 2L. You can build a 2056 of those for around $2500. If you go with EFI you can use a different cam and probably squeeze another 10hp out of it. But unless you can roll your own megasquirt, that will cost $$$. Beyond the 2056, incremental boosts in HP cost a small fortune IMO. |
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| orange914 |
Jun 18 2007, 11:52 PM
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#14
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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 |
QUOTE(brer @ Jun 17 2007, 08:15 PM) Do you have a set of 1.7's right now? if you'd like I can send you pics of my 1.7 heads post machine work. There are a couple other things I can send pics of that you might find interesting as well, like 2L plug and chamber shape modifications. sure, pictures and info is what i need right now. looks like i might need a quality set of pistons/cylenders also. what size are stock, what size can i incress it to with out overheating or other problems? (IMG:style_emoticons/default/thumb3d.gif) |
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| orange914 |
Jun 18 2007, 11:53 PM
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#15
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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 |
QUOTE(Bleyseng @ Jun 18 2007, 08:18 AM) QUOTE(George H. @ Jun 16 2007, 11:24 PM) QUOTE(orange914 @ Jun 16 2007, 08:31 PM) reasonably priced 1st what reasonably priced to you? QUOTE power gain send your heads to HAM let him fill the spark plug holes, re-tap in 2 ltr location and do a polish job on them that should net you a few HP's they say you pick up 10 from the plug relocation you pick up some from the plug relocation but the 2.0L has improved larger ports. its possible to have some cylinder rings made so you can run 2.0l heads with 90mm cylinders. Have Len rebuild your 1.7 heads with new larger valves 42x36 and improve the ports. Ray Greenwood gets 100+hp outta his 1.7L Djet car. who's len? i'm interested (IMG:style_emoticons/default/drooley.gif) |
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| brer |
Jun 19 2007, 12:48 AM
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#16
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Advanced Member Group: Members Posts: 2,555 Joined: 10-March 05 From: san diego Member No.: 3,736 Region Association: None |
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| Bleyseng |
Jun 19 2007, 12:53 AM
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#17
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Aircooled Baby! Group: Members Posts: 13,035 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
with the 66mm stroke you can go to 96mm and have a 1911 motor. Nice little engine if you change the valve sizes to 42x36. likes to rev and has pep, but its not a 2056.
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| orange914 |
Jun 19 2007, 11:13 AM
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#18
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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 |
QUOTE(Bleyseng @ Jun 18 2007, 11:53 PM) with the 66mm stroke you can go to 96mm and have a 1911 motor. Nice little engine if you change the valve sizes to 42x36. likes to rev and has pep, but its not a 2056. i've heard when you go that big the cylendar walls are thin causing heating issues? is this different with quality aftermarket/o.e.m.? at what point do i need to machine case/heads? will this increase, run my d-jet lean? should i adjust my regulator (pressure) up a few pounds to in essense fatten/compensate? (IMG:style_emoticons/default/drooley.gif) i'm ready to start looking for the right stuff |
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| orange914 |
Jun 19 2007, 10:43 PM
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#19
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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 |
QUOTE(Jake Raby @ Jun 18 2007, 11:42 AM) wow very impressive heads, i'm sure worth every penny, just out of my range. (IMG:style_emoticons/default/confused24.gif) guess i'm looking for a set of good 2.0's and tin?? any up for sell out there? |
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| orange914 |
Jun 19 2007, 10:46 PM
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#20
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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 |
QUOTE(Bleyseng @ Jun 18 2007, 11:53 PM) with the 66mm stroke you can go to 96mm and have a 1911 motor. Nice little engine if you change the valve sizes to 42x36. likes to rev and has pep, but its not a 2056. are 1.7's able to take 42x36? does anyone build these in 1.7 or 2.0's? |
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