difference between frpp single blade TB and accufab?
I sure would like to see this throttle body that out flows all the rest. You can carve or cast whatever shape you would wish into the throttle bore but the control is the actual aperture, which the throttle blade shuts against. If you go much larger then the aperture on the Lightning inlet adapter it won’t fit. Where most seat of the pants Hot Rodders make a mistake is in the thinking that Bigger is Better. It does not work with throttle bodies and what most Throttle body Copier’s fail to realize and take into account is the ratio of the cam (Cam & lever assy. On the end of the throttle shaft) to the large bore. What you end up seeing is a lousy transient driving response. I know that once I post this I will have some so called Know-it-alls trying to torch my drawers so go ahead I’m ready there made of asbestos. Just so that you know I spent 10 year in fuel metering, throttle body and air induction design for the very people that make your Lightning. Behind the scenes I just may have provided engineering assistance to your throttle body copier / maker too.
Hi Mike. Great to see you post again. I ALWAYS learn something when I read your post. I have an 03 on order. Can I get another set of exhaust tips from you like I did for my 99? I hope so! Send me a e-mail at JJordan@picofab.com
Thanks,
Jerry
Thanks,
Jerry
Here is a little teaser photo and it is a real teaser in that you cannot have it. The design is patent pending and may never go to market. In extensive testing it produced air flow numbers equal too the large bore FRPP model. Additionally, in back to back drag race testing results were near identical.
Originally posted by BABolt
Here is a little teaser photo and it is a real teaser in that you cannot have it. The design is patent pending and may never go to market. In extensive testing it produced air flow numbers equal too the large bore FRPP model. Additionally, in back to back drag race testing results were near identical.
Here is a little teaser photo and it is a real teaser in that you cannot have it. The design is patent pending and may never go to market. In extensive testing it produced air flow numbers equal too the large bore FRPP model. Additionally, in back to back drag race testing results were near identical.
Originally posted by BABolt
Here is a little teaser photo and it is a real teaser in that you cannot have it. The design is patent pending and may never go to market. In extensive testing it produced air flow numbers equal too the large bore FRPP model. Additionally, in back to back drag race testing results were near identical.
Here is a little teaser photo and it is a real teaser in that you cannot have it. The design is patent pending and may never go to market. In extensive testing it produced air flow numbers equal too the large bore FRPP model. Additionally, in back to back drag race testing results were near identical.
Thanks, Darin
Last edited by wheelspeed; Dec 10, 2002 at 10:30 PM.
Darin,
I don't take your inquires as criticism. You're just asking questions and looking for some answers. I'll give you a few, in fact maybe even more then you asked for. Over two years ago I started modifying the FRPP unit and making it Lightning specific. I wanted to build my own billet oval bore design and it took my over 6 months to get my designs machined. I then offered the first and only billet oval bore throttle body starting two years ago. The issues of whistling can be solved with good port matching as it is not in the body. Sticking can be cause by several different issues but I will not cite them here. I will say this much I have had discussions on this topic with other manufactures and that is as far as it will go. As far as bore size goes if you are willing to do some basic calculations on air demands you can arrive at the correct throttle body size. Some very basic things is one size does not fit all and bigger in not always better. The only other thing that I will say and I avoided to do this in the past is that I have worked with quite a few vendors / manufacturers in providing design help and materials on a range of different items. Some have been very reciprocal and helped me in turn. A few others played the games of take the money and run. Case in point I provided design information and hardware for an Aftermarket supercharger design that used a relocated air inlet without receiving compensation. I also provided throttle body design information to the same individual as their skills in this area were lacking. My whole point in committing this to text is that sometimes when something sounds to good to be true (exaggerated claims as in their help or the claims of their product) it just is. One last thing when you flow these large throttle bodies it cannot be done on a regular flow bench they just will not generate the required airflow.
I don't take your inquires as criticism. You're just asking questions and looking for some answers. I'll give you a few, in fact maybe even more then you asked for. Over two years ago I started modifying the FRPP unit and making it Lightning specific. I wanted to build my own billet oval bore design and it took my over 6 months to get my designs machined. I then offered the first and only billet oval bore throttle body starting two years ago. The issues of whistling can be solved with good port matching as it is not in the body. Sticking can be cause by several different issues but I will not cite them here. I will say this much I have had discussions on this topic with other manufactures and that is as far as it will go. As far as bore size goes if you are willing to do some basic calculations on air demands you can arrive at the correct throttle body size. Some very basic things is one size does not fit all and bigger in not always better. The only other thing that I will say and I avoided to do this in the past is that I have worked with quite a few vendors / manufacturers in providing design help and materials on a range of different items. Some have been very reciprocal and helped me in turn. A few others played the games of take the money and run. Case in point I provided design information and hardware for an Aftermarket supercharger design that used a relocated air inlet without receiving compensation. I also provided throttle body design information to the same individual as their skills in this area were lacking. My whole point in committing this to text is that sometimes when something sounds to good to be true (exaggerated claims as in their help or the claims of their product) it just is. One last thing when you flow these large throttle bodies it cannot be done on a regular flow bench they just will not generate the required airflow.
Last edited by BABolt; Dec 10, 2002 at 11:41 PM.



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