Project: Smogie...RacinNdrummins IDI build
#1006
06-19-2013, 09:34 PM
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#1007
06-19-2013, 09:37 PM
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#1008
06-19-2013, 09:43 PM
As far as the IDI making more HP per cc than the CTD, its kind of a moot "argument". The CTD has no issues getting the fuel it needs to make the power you want, and it gets better mileage doing it.
The issue with doing a p-pump conversion in my eyes is the return on investment. You now have a pump that can fuel a 2500hp motor, but a motor that can only handle about 500hp, maybe a little more on a big single. Kind of pointless.
However, if you're a crazy bastage like Racin is, and I once was... maybe its just worth doing it for you
#1009
06-20-2013, 12:25 AM
Like I said, 180-190cc's at peak, but that is going to be determined by leakdown past the plungers... Fotunately, the plunger area is the same as the DB4, but the leakdown potential is less because the total circumfrence of the plungers is less... This might mean more flow... I wont know until I get a working model completed and on the stand... I have 2 sets of plungers cut right now, I just need to get the parts to EDM, have them fitted, and have the pumps built.
#1010
06-20-2013, 03:57 AM
7.3L at 3,300 rpm displaces 424 cfm
6.9L at 3,300 rpm displaces 401 cfm
A3000 flows 6.5 lbs/min = 941 cfm
My assumption is that the exhaust side must flow at least as much as the compressor side so... where would there be a restriction?
#1011
06-20-2013, 11:04 PM
Thanks man... I dont think its going to have a DB4 on the dyno... My focus has turned torwards the big bore DB2 stuff... Its the only thing that makes sense in my opinion. It liberates me from the whims of Stanadyne, and with a million+ pumps out there, and the benefit of having competent EDM and grinding shops nearby, It just leaves me with having a competent shop to calibrate the pumps... My focus is having a pump stand here in the near future, that way the quality control is up to me, and Im not relying on somebody else to hold the same standards I do... Couple that with eliminating the middle-man and you have a win-win for all of us IDI guys... It will take a little work, but sense when has a little work hurt anybody ...
...
#1012
06-20-2013, 11:18 PM
#1013
06-21-2013, 06:27 AM
#1015
06-21-2013, 09:08 AM
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#1017
06-21-2013, 10:52 AM
#1019
06-21-2013, 02:29 PM
#1020
06-21-2013, 03:02 PM