 1.7l big bore kit? 1972? |
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| jdlmodelt |
 Dec 26 2012, 06:42 PM
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James D. Lane  Group: Members Posts: 345 Joined: 30-November 12 From: Colorado Member No.: 15,210 Region Association: Southwest Region  |
what is the biggest bore I can take my 1.7l to without major remods to the crankcase? recommendations?
thanks, j |
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| Cap'n Krusty |
Dec 26 2012, 07:41 PM
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
I'm thinking 96mm slip-ins. Gonna make a ton of heat though, and it's unlikely to run very well with D-jet EFI, even if you fiddle with it. You'll have to calculate the compression ratio and shim the barrels to compensate for the big increase, and open up the cylinder heads to accept the new diameter. You DO NOT want to run over 8.2:1. 93s make for a hundred more CCs and your FI will be fine.
The Cap'n |
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Posts in this topic
jdlmodelt 1.7l big bore kit? 1972? Dec 26 2012, 06:42 PM
euro911 How about 94mm slip-ins, John? ... 1911cc? Dec 26 2012, 09:43 PM
ThePaintedMan
How about 94mm slip-ins, John? ... 1911cc?
Do t... Dec 27 2012, 12:22 AM euro911 My goof. 94mm would be 1832cc with the stock 66mm ... Dec 27 2012, 01:52 AM ThePaintedMan
My goof. 94mm would be 1832cc with the stock 66mm... Dec 27 2012, 08:54 AM Cap'n Krusty If you use 94 mm pistons, you CANNOT use the OE sp... Dec 27 2012, 10:54 AM Al Meredith I have a set of NPR (Nippon Piston Ring) 96MM pist... Dec 27 2012, 11:44 AM Cupomeat If it were me, I'd bite the bullet and go for ... Dec 27 2012, 11:54 AM jdlmodelt OK. So what can I do to the stock 1.7l to improve ... Dec 27 2012, 11:43 PM brant
OK. So what can I do to the stock 1.7l to improve... Dec 27 2012, 11:59 PM jdlmodelt
OK. So what can I do to the stock 1.7l to improv... Dec 28 2012, 08:31 AM brant we have a local colorado yahoo group too
you ought... Dec 28 2012, 08:52 AM sean_v8_914 have had success with the 1911 at no more than 8.5... Dec 28 2012, 09:10 AM thelogo [quote name='sean_v8_914' date='Dec 28... Dec 28 2012, 10:06 PM Dave_Darling There have been 96mm P&C sets made for the 1.7... Dec 29 2012, 12:55 AM |
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