Need Held Rb25Det Lossing Power

[Rb25detvlt]

hi I have a vl with a rb25det running standered ecu turbo injectors it has yellow jacket coils 3 inch exhaust gutted cat a micks metal craft forward facing plenum self raising for brand new intercooler an pipping runs at 11 pound using a boost tap...

now the problem I'm having is once it has warmed up its sluggish an looses power here's a list of wot I have already changed...

fuel pump Bosch 040

-7 spark plugs gapped at 0.7

has no boost leaks wot so ever

brand new Nissan tps

new afm

tried another ecu also

I did have a coil arking on the engine not the plug but I wrapped it in electricall tape and is working fine now an is running on all cylinders

I really just need advice on wot it could be possibly knock sencors? ? I'm lost for idears it runs fine till it hits it's normal running temp an still drives normal but wan I wanna get into it it will hesitate than go but wan it gets to about 5500-6000 it's just shutters an losses power it does it threw all gears but wan driving normal it's not very noticeable I've owned the car for over a year now an this problem has only started happening in the last month at first it was barly noticeable but now it can't be driven hard at all

any help will be appreciated

[Rb25detvlt]

also I tested the cas an it is working correctly

[Rb25detvlt]

compression test was also dun it came as

1-170

2-160

3-165

4-175

5-160

6-165

test was dun cold an try with all spark plugs removed

[jjman]

that is text book coil-pack troubles. From the symptoms of power loss at those revs to also being occurring at normal operating temps.

Also if you've had trouble with the coils before then id say tape is a temporary fix. Yellow jackets don't have the best reputation.

Id also be inclined to check your earthing as if the coils were pretty new then you might not be earthing correctly forcing the spark to do weird things.

Beyond this, potentially AFM (clean the wire as well as check the internal solders for a dry solder). But id put good money on coil pack issue.

[Rb25detvlt]

thanks for the advice I will try get a new set asap as for the afm that was the first thing I checked an changed

[Josh080691]

As above guess is on coils. I siggest thought u gap ur plugs

[Josh080691]

Regap the plugs to minimum of 0.8 anything under isn't needed. P.s what plugs u using?

[Rb25detvlt]

hi I ran it for about a week with the spark gapped at 0.8 than a week a 0.7 an there was no noticeable differances between the 2 an spark plugs them self are only two weeks old an are nkgr dont remember all the part number on them but they end in -7...

does any one in Sydney have a cheaper set of rb25 series 1 coils for sale let me no cheers