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Discussion Starter #1
:):confused:i wanna know how to make the 07 tach out and bounce revs like the 05 forenza swap ecu or what and i dont want noone to say why do that thats stupid well i dont care about the risk i just wanna know how to do it so any help is appritacted i hate how it cuts off at a certain rpm its stupid i can hold my moms forenza gas pedal down for long as time and rev it out like shit and dont do a dam to the motor and it sounds sweet so what can i do if it can be done thanks guys later yall
 

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not reallt sure what you mean. do you want to redline the car? you cant swap ecus there diferent systems. yours has dbw. also redlining is bad for the motor and pointless because your just going to loose power in the higher rpms
 

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Discussion Starter #3
ok i might of assumed id lose power but im going turbo so if i rev it out it will cut me down bog out cause of the rev limiter the 05 forenza can bounce the rev
 

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i know like i said before its a different system you have DBW. the o5 has a rev limiter also.
your also going to have to beef up the trans and clutch or youll blow it putting any kind of real boost through it
 

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Discussion Starter #5
i know that mcuh on the tranny issues wont hold shit worth of tourqe but i got that covered hoping to be boosting 7 psi easy on t/3 t/4 garret hybride with 40mm waste gate i already got the mani from bms awhile back and now working on messurment on the intercoolor and pipes and such i dunno ive been so busy doing alot of projects even with my sx4
 

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as a note, when you red line your increasing your you chances of dropping a valve. The engine's shafts (crank and camshafts) are rotating too fast, the valves begin to float(they don't fully close or open) and when you quickly drop the rpms, like when shifting, the valves smack the hell out of the head and can break. I know you don't care but I feel better having said it than to hear a few weeks/months from now that your engine is done.
 

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When you redline does that mean passing the 6.5 rpm or going to 6.5 rpm is redlining?

I passed someone a couple months ago and it 6.5rpm then the rpm fell to something ( I don't remember). Is that bad for the engine?
 

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when the needle goes into the red part on the gauge, hense, redlining. it fell because it changed gears. if you hold a gear to long, really only in a manual, it can go up into this area. bad for most cars, some can do it without problems but it needs some modification. cars have a rev limiter in them so basically power is cut when you reach this area to prevent damage. in an auto it will just shift gears at an apointed rpm
 

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when the needle goes into the red part on the gauge, hense, redlining. it fell because it changed gears. if you hold a gear to long, really only in a manual, it can go up into this area. bad for most cars, some can do it without problems but it needs some modification. cars have a rev limiter in them so basically power is cut when you reach this area to prevent damage. in an auto it will just shift gears at an apointed rpm
1+:thumbsup:
If you have a manual and hold it at the redline you can cause damage, if you hit redline every once and a while you should be ok. But I recommend that you not redline it if at all possible. I by no means am perfect and have redlined mine a few times. But the rev limiter on our cars is pretty good about keeping the engine from over revving.
Also like i said above, the valves float at redline, so they do not fully open or close causing incomplete combustion. And as about everyone knows with incomplete combustion comes power loss and lower fuel economy. and although you may get away with it for a long time it only takes one weak part in the engine and you can say goodbye to that engine.
So to sum it all up holding it in/at redline for a long time or continuously shifting after holding it in redline can cause a good amount of damage and does not give you more horsepower or torque.
 

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FYI guys depending on your mods and which gear your in you never need to shift past 6250RPM; That's assuming you have all the basic bolt ons available, some DYI polishing, and the next gear your going into is a bigger drop than most. Only time I go above 6200RPM is if I know the race isn't going to last another second or two, I want to hit the limiter for fun, or I just simply don't shift soon enough. If you’re shifting and you slam it into the next gear and it pulls you back into your seat hard than you shifted to late. It should be smooth into the next gear. If it slams you into the back of your seat going up to the next gear than that means at the last RPM point you were in in the last gear was hardly making any power.
 
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