No Redline?

fras · Postby **fras** » October 30th, 2007, 11:39 pm

What would cause a manual car to not reach its redline/rev limit... No matter the gear? About 700rpm less the redline!

Mileage about 60k... Original manual... Normal Intake & Exhaust Mods nothing more!

DJ Nexxus · Postby **DJ Nexxus** » October 31st, 2007, 7:34 am

why would you want to carry it to redline?

its redline/rev limit

you answered your own question, your brainbox has a rev limiter, presuming it's not a box lancer you are talkign about.

Postby **Dave** » October 31st, 2007, 7:55 am

What would cause a manual car to not reach its redline/rev limit

ECU

Dragsta · Postby **Dragsta** » October 31st, 2007, 9:51 am

What happens when u run the gears?

what is the max rpm it reaching?

SurGTR · Postby **SurGTR** » October 31st, 2007, 12:34 pm

Auto ECU with Gearbox?

Postby **Dave** » October 31st, 2007, 12:44 pm

ECU map is ECU map irrespective of what tranny is used

fras · Postby **fras** » October 31st, 2007, 2:37 pm

Original Manual!

Car use to run up to its rev limit which is 8,500rpm... Now it sticks at 7,800 no matter what gear ur in!

Only mods were done are CAI and Catback exhaust! Exhaust is a lil big but that shouldn't affect top end?

Dragsta · Postby **Dragsta** » October 31st, 2007, 11:05 pm

Car use to run up to its rev limit which is 8,500rpm

wha kinda car?

it probly lacking Fuel

fras · Postby **fras** » November 1st, 2007, 10:53 am

Lancer Mivec... And the Mivec is engaging as it should

Dragsta · Postby **Dragsta** » November 1st, 2007, 10:57 am

ok, u did u check ur Fuel Pressure?

what abt plugs?

fras · Postby **fras** » November 1st, 2007, 11:35 am

Yes on both counts... Also installed autometer oil pressure gauge!

An air filter (cone type) did brake and some pieces were sucked into the intake! Doh ask me how that happen!

Spoke to a mech yesterday... he said it sounded like an ECU prob!
ECU happeneds to be one the the things not checked as yet along with engine internals!

Dragsta · Postby **Dragsta** » November 1st, 2007, 10:06 pm

is it Rev Limiting when u free revv it?

X_Factor · Postby **X_Factor** » November 1st, 2007, 10:38 pm

hope something isnt wrong with ur ecu...cause i sure thats gonna be difficult to get a replacement

could something be wrong with the gearbox itself?

are u able to reach redline in neutral?

fras · Postby **fras** » November 1st, 2007, 11:33 pm

Dragsta No rev limit at free rev

X_Factor No redline in neutral

Langdon · Postby **Langdon** » November 2nd, 2007, 11:29 am

Hmmm very intersting thread in more ways than one

Dragsta · Postby **Dragsta** » November 2nd, 2007, 12:07 pm

Dragsta No rev limit at free rev

X_Factor No redline in neutral

is that a Modified ECU using?

so in Neutral, if it not limiting, How much RPM it reaching too?

fras · Postby **fras** » November 2nd, 2007, 2:35 pm

7,800rpm in neutral as in gear!

Stock ECU... ECU was also re-flashed (so i was told)

RoadWarrior · Postby **RoadWarrior** » November 2nd, 2007, 9:51 pm

Have you tried resetting the ECU ?

blackNshine · Postby **blackNshine** » November 2nd, 2007, 10:05 pm

hmm...................interesting,very interesting.check the brain .

fras · Postby **fras** » November 2nd, 2007, 11:01 pm

RoadWarrior wrote:Have you tried resetting the ECU ?

Disconnect battery for ah 15mins? Did that!

Dragsta · Postby **Dragsta** » November 2nd, 2007, 11:08 pm

Wha bout ur Fuel Pressure :?:

fras · Postby **fras** » November 2nd, 2007, 11:10 pm

The fuel pressure wasn't checked.

This is what have been done so far:-
Changed: fuel filter, spark plugs & coil packs.
Checked: oil pressure, mivec solenoid, re-set ecu, clean injectors & TB.

boogy · Postby **boogy** » November 5th, 2007, 8:36 am

Intriguing!!!!!!!!!! ECU woes it seems!!

Dragsta · Postby **Dragsta** » November 5th, 2007, 1:03 pm

when u get some time, check ur Fuel pressure, Maybe the pump not supplying sufficient fuel @ hi rpm....

i dunno what is the required psi it supposed to be...

fras · Postby **fras** » November 7th, 2007, 11:40 pm

Ok but I feel is the ECU/Engine

ninjaboost · Postby **ninjaboost** » November 8th, 2007, 4:34 pm

you should also check the timing and the TPS settings... hadf this same problem with a MIVEC sometime ago and that fixed it... some jokey mechanic had set the timing too high...

fras · Postby **fras** » December 13th, 2007, 8:29 pm

Changed ECU and fuel pump... Only getting 8,000rpm
Was previously getting 7,800rpm... Mind u redline starts 8,200 and rev limit 8,500!

shinaka · Postby **shinaka** » December 14th, 2007, 9:28 am

what exhaust mods were done?...this might be your problem....

fras · Postby **fras** » December 14th, 2007, 9:35 am

2.5" Exhaust from down pipe... Exhaust is 0.25" too big but that wun't cause that prob?

I really was looking at the ECU...
Now I really don't know! Maybe fuel?