I am really interested in this subject. Could someone comment on this? http://www.fiesta-si.com/forums/viewtopic.php?f=16&t=17588" onclick="window.open(this.href);return false;
Interesting idea; running ITB only as air modulators to the engine and retaining stock injection. With that plenum that is very similar to the BMW M engines which all (based on my experinece) are GREAT either at throttle response or power combined with low end punch.
My thinking was as follows: put ITB on standard engine, run it with FRP map and FRP cams and FRP exhaust. Would that be, in anyone's educated guess be on par with FRP intake plenum setup or perhaps better?
When I look at the prices of FRP it is just incredible steep to buy one; this setup would and should be 20-30 % of that max, plus it is nice project and you get to learn something new…
@lightning motorsport: The plenum of yours is bolted to the bottom half of intake. It's length is 22-23 cms. FRP intake is same in length as a regular puma coming at 42-43 cms. That gives resonance at 4100 rpm (give or take) in both cases. What is the story with your plenum? I am affraid the low end power would suffer? Do you have any printout of torque with your plenum on it? I understand that half the length could give similar results in using the second wave pulsation (2nd order harmonic) but don't think Ford would have done it the way it did unless it was necessary?
Long post, sorry and thanks in advance
Interesting idea; running ITB only as air modulators to the engine and retaining stock injection. With that plenum that is very similar to the BMW M engines which all (based on my experinece) are GREAT either at throttle response or power combined with low end punch.
My thinking was as follows: put ITB on standard engine, run it with FRP map and FRP cams and FRP exhaust. Would that be, in anyone's educated guess be on par with FRP intake plenum setup or perhaps better?
When I look at the prices of FRP it is just incredible steep to buy one; this setup would and should be 20-30 % of that max, plus it is nice project and you get to learn something new…
@lightning motorsport: The plenum of yours is bolted to the bottom half of intake. It's length is 22-23 cms. FRP intake is same in length as a regular puma coming at 42-43 cms. That gives resonance at 4100 rpm (give or take) in both cases. What is the story with your plenum? I am affraid the low end power would suffer? Do you have any printout of torque with your plenum on it? I understand that half the length could give similar results in using the second wave pulsation (2nd order harmonic) but don't think Ford would have done it the way it did unless it was necessary?
Long post, sorry and thanks in advance
