Blacktop detonating...

[1I1]

Doesn't look like it would have a air temp sensor like the blacktop

[Mr. Mainstream]

coool black top FX i'll also say try change in intake around, i had problems when i put a pod on my BZ-R under full load, replaced with k&n panel and was fine

[alamo]

Ok, I just found a two wire plug below the pod filter that the air temp sensor probably goes into. I'll go on the hunt for an air box and sensor. If any one has one please PM me.

[Voyeur]

A couple of very basic points, what fuel are you running, and what is your base timing set at. It sounds like you need to knock a couple of degrees off the timing. Changing the air intake, and fitting a catch can instead of the PCV will help, but to me it sounds like it's right on the edge of too much advance.

[alamo]

A couple of very basic points, what fuel are you running, and what is your base timing set at. It sounds like you need to knock a couple of degrees off the timing. Changing the air intake, and fitting a catch can instead of the PCV will help, but to me it sounds like it's right on the edge of too much advance.

It was running 95 fuel the day I went through the desert road. The mechanic who put the engine back together set the base timing so I'm not sure. What should it be at? I'll get it checked.

[Voyeur]

I currently have mine set at 12 degrees with BP "96" if i use gull biofuel i can ramp it up to 14 degrees, but i have a factory air box, and a catch can. I would suggest maybe 10 degrees, and see how it goes. You can always up the timing later

[alamo]

fitting a catch can instead of the PCV will help

I realise it will stop oil residue build up in the inlet tract but how will this help avoid detonation? Is it becasue the air being redirected into the inlet is hot?

[Voyeur]

No it's beacause the oil vapour effectively reduces the octane rating of the fuel/ air mix.

[alamo]

No it's beacause the oil vapour effectively reduces the octane rating of the fuel/ air mix.

Ok, so what type of catch can do you recomend for this application?

[1I1]

One that you can mount nicely somewhere in a corner etc. With a breather filter and a drain (that bit is up to you tho). PM slightly_looney - his old man makes them (really nice build quality)

[alamo]

One that you can mount nicely somewhere in a corner etc. With a breather filter and a drain (that bit is up to you tho). PM slightly_looney - his old man makes them (really nice build quality)

Do I need to plumb it back into the inlet manifold from the catch can or just block the inlet manifold pipe off?

[Voyeur]

Ican vouch for loony's ones, they are very nice (if i wasn't so tight i'd buy one) I havent plumbed mine back into the inlet, just blocked it off, again thats up to you.

[Bling]

If you just want a cheap option, grab a factory intake off someone and plumb the line back into the intake. How its done factory. A catch can does look shiney etc, but its not needed for the engine to run fine.

Also if you can run it on 98. I'm not sure where my timing sits, but on anything lower than 98, like 95 for example (only if i'm near empty and need fuel do I touch it) it runs like a bag of crap and detonates.

So 98 will help.
Factory intake will help.
Temp sensor will help.

Find someone thats parting out and ae111 and grab the intake piping / box / sensor with plug etc. Then put it all together and see how you go.

That pod filter setup is horrible

[AceSniper]

temp is a 2 wire plug, on a silvertop air temp is inside the afm

[blackmk3]

Defiantly run it on 98 fuel, My Girlfriends silver top Levin drives noticeably poorer on anything less than BP 98. And a friend of mine has a AE111 Trueno with a blacktop and it totally runs like a sack of shit on anything less. Just to much compression

If you get a hold of a timing light i can help you check the timing

[Crampy]

I used to run my BZ-G on 98, then went to 95 and didn't really notice any diference or problems. Maybe I could have advanced the timinga bit when using the 98, who knows. It still went well on the 95, good economy.

[sergei]

The problem with fuels that "98" is not really "98", it could be 96 or 99 depending on batch. I can notice that in my GT4 some batch will cause pinking more than another even if I fill up at same station.

[Crampy]

The problem with fuels that "98" is not really "98", it could be 96 or 99 depending on batch. I can notice that in my GT4 some batch will cause pinking more than another even if I fill up at same station.

Isn't the advertised octane rating a minimum though?

[sergei]

The problem with fuels that "98" is not really "98", it could be 96 or 99 depending on batch. I can notice that in my GT4 some batch will cause pinking more than another even if I fill up at same station.

Isn't the advertised octane rating a minimum though?

No not really, they even have a small print stating that 98 is average on pamphlets that BP used to give out when they introduced 98.

[Boosted_162]

The problem with fuels that "98" is not really "98", it could be 96 or 99 depending on batch. I can notice that in my GT4 some batch will cause pinking more than another even if I fill up at same station.

Isn't the advertised octane rating a minimum though?

No not really, they even have a small print stating that 98 is average on pamphlets that BP used to give out when they introduced 98.

Mobil states on the pump that synergy 8000 has a minimum rating of 97.5...