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I was wondering if I would be able to put in a toda engine kit and then a JRSC later down the line when I acquire more money... Thanks.
 

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I think your best bet would be to sell your Toda cams when you decide to go FI b/c I don't think they'll give you much power over stock cams on an FI application. Plus you could put some of that money towards things you will need, like a clutch or lsd.
 

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BlindOne said:
I was wondering if I would be able to put in a toda engine kit and then a JRSC later down the line when I acquire more money... Thanks.
I am sure you will see someone trying out that combination in the next few months.
 

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the key to this will be the hondata k pro with a baseline map as a starting point

quite a challlenge to mix these 2 almost diametrically opposed approaches


but then sometimes u gotta leave all that theory behind :) to push the envelope
 

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It'd be a really nice setup. Toda said that it was possible with the Spec A's, but definately not with the N+'s since their timing is advanced to much for F/I. With a hondata programmable you should be able to manage that setup quite well.
 

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rsxmachine said:
according to Toda it has already been done with their Spec-A cams.
It has, in a limited way. The problem, and it was a nice problem, was that it flowed so much air, the boost level dropped from 5 to 3.8 pounds. Lots of additional fuel was needed and the 440s were not big enough. Much more testing was needed, but there was potential.

At the time the test was done, bigger injectors and smaller pulleys for more boost were not available. Nor did we have a boost mapped ECU, so the testing went no further. Next week I expect there to be all of these available.

Doug
 

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looking forward to that r and d!

whilst the nitrous on top of the jrsc produced super power -i would prefer to buld in the power across the board with a s/c

theoretically this will produce more power than a stand alone jrsc one would expect and maybe the best upgrade path for toda spec a users


keep up the good work doug-thers always a new challenge!
 

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Hondata said:
It has, in a limited way. The problem, and it was a nice problem, was that it flowed so much air, the boost level dropped from 5 to 3.8 pounds. Lots of additional fuel was needed and the 440s were not big enough. Much more testing was needed, but there was potential.

At the time the test was done, bigger injectors and smaller pulleys for more boost were not available. Nor did we have a boost mapped ECU, so the testing went no further. Next week I expect there to be all of these available.

Doug

any update on this?
 

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JRSC and Toda would just be the meanest combo ever
 

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Naturally aspirated cams are horrible for superchargers. You really need application specific cams.

NA cams, specifically high RPM NA cams, are all about exhaust scavenging. As a result, the intake and exhaust cams are open at the same time during part of the intake stroke.

On a supercharger, this would mean wasting precious boost - and therefore horsepower - by simply blowing the compressed intake charge down the exhaust. This would in turn result in increase compressor speed, sapping more power from the engine, as well as increased heat.

With a turbocharger, this isn't that bad except with truly extreme NA cams. Any air that's blown past the engine simply spins the turbocharger faster. You don't lose any boost, but your turbo does have to work a tad harder, and thus your intake charge may be hotter.
 
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