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ed_ma61
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May 2002
Curious :: 4age / 7mge intake ports Thu, 31 October 2002 12:49 Go to previous message
ok this is an interesting one!!

stripped an early (87) and also a late (91) model 7mge head today (and i believe the 4age head is remarkably similar -thats why its in the title) and i noticed an interesting difference in the intake ports b/w the two models....

see image below:

http://www4.tpgi.com.au/users/loats//toymods/7mgeintaketypes.jpg

this is basically an internal 3D view of the intake and valve ports of the two models of head (1987 and 1991). the red is the dividing wall, as seen inside the intake port, that separates the incomming airflow into (towards) the two valve ports.

now the earlier model has a longer divider that ends with its leading edge comming to a sharp finish. the later model's dividing wall is a LOT shorter, with its edge much closer to the valve ports, and it ends much more bluntly.

considering that in either case (ie whichever head i chose to build up) i will be doing some tungsten work on the intakes, and the leading edge of either wall will eventually be knifedged... "which intake port separator - the long or short - will give the better result" ???

cheers
ed
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SubjectPosterDate
Read Message   Curious :: 4age / 7mge intake ports  ed_ma61Thu, 31 October 2002 12:49
Read Message   Re: Curious :: 4age / 7mge intake ports justcallmefrankThu, 31 October 2002 13:00
Read Message   Re: Curious :: 4age / 7mge intake ports ed_ma61Thu, 31 October 2002 13:22
Read Message   Re: Curious :: 4age / 7mge intake ports AbaddonGZEFri, 01 November 2002 02:50
Read Message   Re: Curious :: 4age / 7mge intake ports BigWormFri, 01 November 2002 06:35
Read Message   Re: Curious :: 4age / 7mge intake ports ed_ma61Fri, 01 November 2002 07:07
Read Message   Re: Curious :: 4age / 7mge intake ports AbaddonGZEFri, 01 November 2002 07:22
Read Message   Re: Curious :: 4age / 7mge intake ports fergo308Fri, 01 November 2002 09:19
Read Message   Re: Curious :: 4age / 7mge intake ports ed_ma61Fri, 01 November 2002 13:56
Read Message   Re: Curious :: 4age / 7mge intake ports IRA11YSat, 02 November 2002 08:39
Read Message   Re: Curious :: 4age / 7mge intake ports ed_ma61Sat, 02 November 2002 14:11
Read Message   Re: Curious :: 4age / 7mge intake ports IRA11YSun, 03 November 2002 03:29
Read Message   Re: Curious :: 4age / 7mge intake ports ed_ma61Sun, 03 November 2002 12:32
Read Message   Re: Curious :: 4age / 7mge intake ports IRA11YMon, 11 November 2002 05:44
Read Message   Re: Curious :: 4age / 7mge intake ports ed_ma61Mon, 11 November 2002 06:57
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