opinions on setting rev limiter!


Changing the VTEC crossover on it's own won't gain you that much or you might even lose. Better is to buy the mods you want for the engine (intake, exhaust, manifolds etc) and then have a remap. What is often done is lowering the VTEC point when a remap is done cause the optimal transitionpoint is often seen lower in the rev range when a remap combined with parts is done. On it's own though, lowering the crossover will gain you almost nothing or maybe even make you lose power.
 
_JT said:
Changing the VTEC crossover on it's own won't gain you that much or you might even lose. Better is to buy the mods you want for the engine (intake, exhaust, manifolds etc) and then have a remap. What is often done is lowering the VTEC point when a remap is done cause the optimal transitionpoint is often seen lower in the rev range when a remap combined with parts is done. On it's own though, lowering the crossover will gain you almost nothing or maybe even make you lose power.
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ok mate cool, just really getting an idea what is actually worth changing.gonna just keep it std till i can map it then we will see.

Cheers for the help guys
 
I'll give you an example. The plans for my car were/are:
- 98 spec mani
- high flow cat
- open exhaust
- good intake, probably mugen copy with better tubing from filter to tb
- and then finally ecu which I want remapped for my car
 
_JT said:
I'll give you an example. The plans for my car were/are:
- 98 spec mani
- high flow cat
- open exhaust
- good intake, probably mugen copy with better tubing from filter to tb
- and then finally ecu which I want remapped for my car
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well i have all of that apart from the mani and intake mani. I have a set of throttle bodies i made that i want to fit once i get the correct basemap for it
 
KEVTI said:
well i have all of that apart from the mani and intake mani. I have a set of throttle bodies i made that i want to fit once i get the correct basemap for it
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exhaust manifold and intake manifold are key...very.
After that would be head work. Which is not cheep.
The bottle neck is: TB - Intake manifold - Head - Exhaust manifold - Exhaust
they all work together. Getting them to work more efficiently is very key.
 
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KEVTI said:
well i have all of that apart from the mani and intake mani. I have a set of throttle bodies i made that i want to fit once i get the correct basemap for it
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If your engine is stock I'd stick with a intake manifold because throttle bodies will be about as much use as a chocolate teapot.
 
Kozy thanks for you´re information :)

I dont know B18c is 8400rpm oem rev limitter, i have idea that is 8600rpm. Thanks :nice:

Until now i have in my B16A2 with ITR camshaft 8600rpm rev limiter, as soon i go to dynodinamics i will see where is the peak power and adjust rev limiter
 
Ye tamma i plan on getting an exhaust mani asap, looking at the tegiwa one ?

joe said:
If your engine is stock I'd stick with a intake manifold because throttle bodies will be about as much use as a chocolate teapot.
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Ye i know people say that its the last thing you should do to an engine but if i can make them work, seeing as i alrady have them. Also i wont loose anything from fitting them i will just gain induction sound, so in my personal opinion i woukd rather make use of them. Chwers
 
_JT said:
AFAIK JDM is 8600rpm and all the rest 8400rpm.


Chances are real you will lose.
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what will i loose from fitting them ? I thought my std rev limiter was at 8900? I have a jdm 96 spec b18c.
 
KEVTI said:
what will i loose from fitting them ? I thought my std rev limiter was at 8900? I have a jdm 96 spec b18c.
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you need to understand the basic rules of thumb for ITB's :

Compression
Good head work
Big Cams

You have NONE of the above, heck in most circumstances ITB's will make less power than a intake manifold.
 
joe said:
you need to understand the basic rules of thumb for ITB's :

Compression
Good head work
Big Cams

You have NONE of the above, heck in most circumstances ITB's will make less power than a intake manifold.
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ok, so how would they make less power ? I cant understand how. The toyota levin bzr has itbs std. Thats a 1.6l 20v and doesnt even have vvtli and that produces 160ish i think. I doubt that has higher compression than my b18c and head work ect ? Im only asking because i dont know, if some one says something i like to be able to understand why. :)
 
KEVTI said:
ok, so its not like its not a good upgrade, and that i will loose poer from it, there is no question about it that they sound bloody mental!
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With that thinking, its not a bad idea to swap in a corvette engine either! Its only money right? There is a point when it becomes ridiculous, for me.
 
tama666 said:
With that thinking, its not a bad idea to swap in a corvette engine either! Its only money right? There is a point when it becomes ridiculous, for me.
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when your lufe revolves around your car, you generally do spend alot of money on it, i will always be spending on my car so its something i wanna do.
 
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