car wont let me rev over 3500 rpm

[slyder32]

hi people wve just droped my fresh rb 20 with t4/t3 turbo in and its all wired up and we just put a new walbro pump in and i took her fro a test drive up the street all going well reving fine but at aout 3500 to 4000 rpm it wont go any higher and feels like its hitting some kind of limiter and that happens all the way through each gear and wont go any higher if some one or any one has an idea or knows wat the problem is please tell me coz im stuffed as to wat it may be any sollution or tips will be greatly appretiated

thanks

David

Driftline racing

[mr_rbman]

had a similair problem, think it may be a boost leak, was on mine anyway and fixed the problem straight away!

[slyder32]

sweet so it may be a boost leak just out of curiosety were was ur leak and another Q theres to metal lines comming offthe ceramic intake pipe windering were they go do they go into the charcoal canister or were else lol soz im new to these rb20s

[ylwgtr2]

check the air flow meter signal wires

[slyder32]

so check the plug that comes off the airflow meter or wat?

[RB30-POWER]

The Air Flow Meter/Stock Management would be maxing out is my guess, from the extra air flow?

Or is it aftermarket setup?

Can you rev it over 4000, if you aren't on boost?

[Zahos]

I had the same symptims once, and it turned out to be a coil pack.

One of the little springs between the coil an the spark plug was missing and the coil pack oxidized in the shaft.

I took out the plug and cleaned it with WD40, replaced little spring and all was good!

[blind_elk]

sweet so it may be a boost leak just out of curiosety were was ur leak and another Q theres to metal lines comming offthe ceramic intake pipe windering were they go do they go into the charcoal canister or were else lol soz im new to these rb20s

They probably go to a charcoal canister. And they probably are what is causing your boost leak (if they're not connected to anything)!

[mr_rbman]

mine was on the intercooler piping just after the tb, the little bit that comes off, not sure what its called!

[R31Nismoid]

does it throw heaps of fuel cloud out the rear?

if so its a coil pack (just what i have now)

if not, something is leaking, or the AFM isnt happy.

Oh, get rid of the walbro too... they are rubbish

[slyder32]

thanks people for all the helpefull hints im gonna be getting it tuned at protek tommoz so hopefully itll be fixed and about the walbro i had a 040 pump in it and it shat its self

[R31Nismoid]

you were unlucky.

ive got the walbro... ripping it out this week for the bosch

[cameron]

you were unlucky.

ive got the walbro... ripping it out this week for the bosch

Walbro's are good enough to fill serge tanks

Sounds like home limp mode, an earth is not connected usally happens if the earth on the afm has not got a decent connection.