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#21
07-05-2018, 06:03 PM
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I'm running an 8-71 with a 400 based motor +60 over.
9lbs of boost, Haven't been to track yet but the car pulls hard. 3.42-gear. GT. |
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#22
07-05-2018, 06:08 PM
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#23
07-23-2018, 04:14 PM
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Back to this thread...my engine builder is wanting to use a 4” stroke because of the boost aspect. Right now looking at 4.28 bore...anyone running a combo like this? Goal is around 1800 hp on methanol...
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#24
07-23-2018, 04:26 PM
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GTO George |
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#25
07-23-2018, 06:05 PM
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Mine has a 4" stroke and 4.35" bore. Running around 12# of boost at one-to-one on the blower, IIRC. My heads flow 400+ cfm, however. Jim
__________________
****'63 Tempest, 475" IAII, Wenzler Super Chief heads, converted to blown alcohol, Birdcatcher, Littlefield 10-71 high helix. Best pass to date: 7.67 @ 181.59 (1/4 mi.), 4.95 @ 143.67 (1/8 mi.), 1.18 (60 ft) 7.75 @ 178 pass: https://www.youtube.com/watch?v=Iez3...ature=youtu.be First seven second pass(7.98): https://wwwoutube.com/watch?v=DK17...ature=youtu.be Thanks to Paul Carter @ Koerner Racing Engines 
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#26
07-23-2018, 06:51 PM
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GTO George |
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#27
07-23-2018, 07:21 PM
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Sadly, what we want in life and what we get often don't correspond very well.  I agree, 1800HP is unlikely.Jim
__________________
****'63 Tempest, 475" IAII, Wenzler Super Chief heads, converted to blown alcohol, Birdcatcher, Littlefield 10-71 high helix. Best pass to date: 7.67 @ 181.59 (1/4 mi.), 4.95 @ 143.67 (1/8 mi.), 1.18 (60 ft) 7.75 @ 178 pass: https://www.youtube.com/watch?v=Iez3...ature=youtu.be First seven second pass(7.98): https://wwwoutube.com/watch?v=DK17...ature=youtu.be Thanks to Paul Carter @ Koerner Racing Engines
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#28
07-23-2018, 07:42 PM
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#29
07-23-2018, 07:44 PM
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#30
07-23-2018, 08:05 PM
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But for how long?  Jim
__________________
****'63 Tempest, 475" IAII, Wenzler Super Chief heads, converted to blown alcohol, Birdcatcher, Littlefield 10-71 high helix. Best pass to date: 7.67 @ 181.59 (1/4 mi.), 4.95 @ 143.67 (1/8 mi.), 1.18 (60 ft) 7.75 @ 178 pass: https://www.youtube.com/watch?v=Iez3...ature=youtu.be First seven second pass(7.98): https://wwwoutube.com/watch?v=DK17...ature=youtu.be Thanks to Paul Carter @ Koerner Racing Engines
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#31
07-23-2018, 09:16 PM
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If the heads are good material and he keeps an eye on the tune i.e exhaust temps and bearing spread.... it can last...but yes, higher maintenance...ta/FC cars are running 60psi of boost... granted, that is a solid head...but he can get 1800hp and live.. 69Goat... dont let anyone tell you you can't! KRE told me I couldn't do what I did with the DirtyBird.... so I proceeded to stomp their asses for 3 years until I sold the car... |
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#32
07-23-2018, 09:26 PM
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#33
07-23-2018, 09:27 PM
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 GTO George |
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#34
07-23-2018, 09:33 PM
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I know you like to go to the track, drink your diet soda, grill out and sit on your ass between rounds but that is what you like.... others want to push it and challenge theirselves.... I wouldn't run that kind of boost on carbs like you have but mechanical injection....all day long. |
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#35
07-23-2018, 10:49 PM
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When I go racing it’s normally a 3 day race.......double digit passes that’s with a 1,200-1,300 hp every pass......who else does that? It’s like what Mr. Goodwrench sezs......”you either pay me now or pay me later (at the track)”, I’d rather pay now (before I get to the strip) then pay later (at the strip)! When I get back from a race I unload my car and put it on the hoist. Then before I go to my next 3 day race I take my engines diaper off, drain my oil, remove my oil pan (two piece pan) clean the pan and look see at the rids and whatever else I can see, put it back together put the good oil back in. Then I take my carbs apart and clean them, pull the spark plugs out and then re-lash the valves. That’s so when I get to the track I’m able to drink my diet pop, sit by the fire and tip a few beers and only put fuel in my car and check the air pressure on my tires......I like it that way!
1,800 hp........lots of luck......just saying! GTO George Last edited by GTOGEORGE; 07-23-2018 at 10:56 PM. |
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#36
07-23-2018, 11:13 PM
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Do you tell KRE "good luck with that" when they are trying to go fast? My point is , dont discourage someone that has a goal that is doable even if it isn't for you... |
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#37
07-23-2018, 11:22 PM
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4.00" stroke, 4.250" bore for a centrifugal. It all depends on what you want and when you want it. Let the blower do the work not the engine.
A turbo is different and is not a simple answer. Need to do more math...lol |
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#38
07-23-2018, 11:22 PM
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Easy....seriously I’m the only one that works on my car! Ask 69goat what parts he is using blower, header size, camshaft, etc.) then get back with me. I’m not discouraging him but is a bit of a reach for a street car! GTO GEORGE |
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#39
07-23-2018, 11:33 PM
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Someone might want to tell Brand X that you cant run 50-60 lbs. he might want to back his down Lol
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#40
07-23-2018, 11:37 PM
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GTO George |
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