Trottle body

[ramafingers1]

where can i get a trottle body from a SIR B16A engine bored from the stock 60mm up to 64mm and then get the appropriate butterfly to fit .

[Jimbo]

ummm thats machine shop work.... its best you just buy an aftmkt THROTTLE body

[drop ho]

^^^ aye yuh still have tha aluminum piping yuh was sellin for the intake?

[Jimbo]

yeah ah still selling the entire assembly, uwant it? or better yet I have an Arospeed setup if you want that

[drop ho]

pm with some details nah, price setup etc.

[Dirty Face]

ummm thats machine shop work.... its best you just buy an aftmkt THROTTLE body

this is good advice.

Also remember that the bigger throttle may decrease air velocity in a N/A engine and that, coupled with the fact that your probably not altering the Computer also to make up for more air MASS may in the end lead to less HP...I wonder if the sensor can adjust for a larger TB on the stock ECU..never did it on a stock ecu car before..

[ramafingers1]

anybody know how much extra HP (approx) you will get when you bore out a B16A trottlebody from the original 60mm up to 62mm??????????
want to know if its worth the $$$$$

[Dirty Face]

like yuh didnt see my post or wha...??!!

[ramafingers1]

i saw an understand your post, but one of the upgrades you can do with still having the stock ECU is either change to a type-r trottlebody (62mm)
or bore out your original from 60-62. Its not much, but ..................?????

[W2J]

I running a RPW 67mm Throttlebody with ported RPW Manifold and a Evo 5 Airflow meter . Big power boost ontop a higher rpms. Loss on lowdown power under 4k. you will need some sort of fuel inrichment.

[Dirty Face]

i saw an understand your post, but one of the upgrades you can do with still having the stock ECU is either change to a type-r trottlebody (62mm)
or bore out your original from 60-62. Its not much, but ..................?????

I hear you killer, so then you're prepared to deal with the loss of velocity which would result in losing power in the LOW RPM range.. a place where, for sure, your HONDA NEEDS IT..?... I guess the 62 aint bad though...

[crazybalhead]

Honda does not operate on air MASS, but rather manifold absolute pressure, so as long as yuh not boosting, the MAP sensor should compensate to a point.

[W2J]

I dont think that the map will compensate for that major gain in airflow there must be a limit that it could go to.

[crazybalhead]

That wouldn't be a major gain. I don't think so. And like I said as long as he not above 0 PSI the map will compensate "to a point", the point of course being the maximum advance and fuel that the stock computer can set.

[Dirty Face]

Honda does not operate on air MASS, but rather manifold absolute pressure, so as long as yuh not boosting, the MAP sensor should compensate to a point.

I didnt say it works on air MASS.. I said not altering the computer FOR MORE AIR MASS may lead to blah blah blah read the post again..

.... even though we know that the Honda Ecu uses a pressure sensor it doesnt change the fact that more air means more air MASS...

[crazybalhead]

Not necessarily. Hotter air with a greater volume can have the same mass as colder air with smaller volume. So more air is not necessarily more mass. This is why I think Honda measures pressure, that way the volume over temperature ratio is measured. So a calculation using Air intake temp vs Mass is not necessary. It can be useful but not necessary.

I making sense?? A level chem and physics was a long time ago.

[Dirty Face]

^^ yes yuh making sense

but the ambient engine temp is usually stagnant so that a bigger throttle body wouls ALWAYS result in more air MASS than the smaller one because the conditions like temperature of the engine would have been the same with either...

[ramafingers1]

how will it work on a Frank engine

[W2J]

you need to ask a Frank

[Dirty Face]

itll work better on a frank engine as that engine has more torque to start with, and figure that if your franking your putting better cams in there or something!