Help!! detonating! (Searched)have fuel
#1
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Help!! detonating! (Searched)have fuel
This is really pissing me off, I recently got a new engine and thought I did everything to make it realiable?? I was driving it and boosting it to 10-11 psi And I heard the dreaded PIng! I backed off immediately and just sizzled in my seat. I have searched and all threads I found someone was missing one of these mods.
Here are my relevant mods:
Apexi S-afcII "Not tuned" set at %0
550cc bluprinted R/C pri.
680cc New secondarys "tested"
warlboro 255lph rewired
New fuel filter
rtek7 CPU upgrade with internal FCD
Boost gauge
TID & K&N cone
Full exhaust 2.5 inch
Ported WG , twin scroll removed
Now granted, I dont have a tuned Safc but I should have enough fuel to support 10-11 psi on stock turbo... Shouldnt I be running rich at %0 across the board?
Help please! I want this engine to last..
Thanks
~jesse
Here are my relevant mods:
Apexi S-afcII "Not tuned" set at %0
550cc bluprinted R/C pri.
680cc New secondarys "tested"
warlboro 255lph rewired
New fuel filter
rtek7 CPU upgrade with internal FCD
Boost gauge
TID & K&N cone
Full exhaust 2.5 inch
Ported WG , twin scroll removed
Now granted, I dont have a tuned Safc but I should have enough fuel to support 10-11 psi on stock turbo... Shouldnt I be running rich at %0 across the board?
Help please! I want this engine to last..
Thanks
~jesse
#3
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one ping, than another later in the night..... Single pings because I would react as soon as I heard... the engine has 2900 miles so Im still very sensitive to it..
the first was a pretty strong ping, but I believe the engine is OK,
the first was a pretty strong ping, but I believe the engine is OK,
Last edited by imflammable9; 02-05-04 at 02:47 AM.
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I agree, But Im suspecting something bigger.. these are the same type of pings and same conditions/boost.. that the first motor poped from.... I had no fuel mods other than a non rewired warlboro before?
#7
I wish I was driving!
Originally posted by imflammable9
I agree, But Im suspecting something bigger.. these are the same type of pings and same conditions/boost.. that the first motor poped from.... I had no fuel mods other than a non rewired warlboro before?
I agree, But Im suspecting something bigger.. these are the same type of pings and same conditions/boost.. that the first motor poped from.... I had no fuel mods other than a non rewired warlboro before?
You know that's the answer to you prob and the best solution... post us the data when you get it.
Try and get and AFR and an EGT reading if possible, as well.
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#12
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Originally posted by SpeedFreak03
What octane gas are you running? My buddy ran 93 Wawa gas and had detonation but switched to sunoco ultra 94 and the problem went away...
What octane gas are you running? My buddy ran 93 Wawa gas and had detonation but switched to sunoco ultra 94 and the problem went away...
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I always use 93 octane, I will try the 94 ( i didnt know they had it) ....
Im moving to cali In a few weeks..91 octane will suck
Im gona convert to a s5 turbo/manifold before I tune so I can controll boost creep.........Oh yea, Im getting a to4e compressor for it too ... anyone want a great shape 80Kmi S4 turbo & manifold with a fully ported WG?
Im moving to cali In a few weeks..91 octane will suck
Im gona convert to a s5 turbo/manifold before I tune so I can controll boost creep.........Oh yea, Im getting a to4e compressor for it too ... anyone want a great shape 80Kmi S4 turbo & manifold with a fully ported WG?
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my spark plug wires are good... just cleaned the plugs too..........
by crossed to you mean in the wrong place? or crossing eachother?
by crossed to you mean in the wrong place? or crossing eachother?
Originally posted by RETed
Spark plugs wires crossed?
-Ted
Spark plugs wires crossed?
-Ted
#17
I wish I was driving!
by crossed meaning that the trailing T1 plug leads from the T2 coil, and the trailing T2 plug leads from the T1 coil.
The leading leads don't matter if they are crossed.
The leading leads don't matter if they are crossed.
#18
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What RPM are you hearing this at? I think you need more fuel. I am running 12 PSi on my second stage, and I have a WB, and I KNOW 0% with those injectors is not enough fuel above 5.5k for 10-11 PSI. With my mods anyways. But I do have a Hybrid Turbo ...
-Robert
-Robert
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Is it possible to ping due to too much fuel?
when the First ping happend I was at %2-3+ from 5.0k-7.5k
it was a hard shift form 4th to 5th dropping rpms to 4600ish....I might have lifted the throttle and reapplied it before ping..
when the First ping happend I was at %2-3+ from 5.0k-7.5k
it was a hard shift form 4th to 5th dropping rpms to 4600ish....I might have lifted the throttle and reapplied it before ping..
#23
Rotary Enthusiast
Ok, What the hell are you doing getting deep into the throttle without having the car tuned??? Are you nuts? You've changed the fuel pump, the injectors, and you're boosting to an unstock PSI. You have no clue what your AFR's are at right now. You are assuming that you have enough fuel but you don't know. That "tick tick tick" you hear is your timebomb. Enjoy.
#24
Originally posted by wozzoom
Ok, What the hell are you doing getting deep into the throttle without having the car tuned??? Are you nuts? You've changed the fuel pump, the injectors, and you're boosting to an unstock PSI. You have no clue what your AFR's are at right now. You are assuming that you have enough fuel but you don't know. That "tick tick tick" you hear is your timebomb. Enjoy.
Ok, What the hell are you doing getting deep into the throttle without having the car tuned??? Are you nuts? You've changed the fuel pump, the injectors, and you're boosting to an unstock PSI. You have no clue what your AFR's are at right now. You are assuming that you have enough fuel but you don't know. That "tick tick tick" you hear is your timebomb. Enjoy.
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I do not think he is running rich. Okay 3 options here. Timming, running lean, or a mental breakdown.
Timing= very easy to check, so I sure hope this is not the issue.
Mental= he says he is sure it's detonation.
Running lean= Maybe a bad injectors, bad wiring, or what i think .. he is just plain running lean for that boost. Or maybe his boost gauge is inacurate and he is really running 14 PSI and running lean. what kind of boost gauge you got?
I mean those are the only real causes, unless you have a crazy amount of exsesive heat somewhere. Tune your AFR! Not only will it prevent this, but it will give piece of mind, and more power.
-Robert
Timing= very easy to check, so I sure hope this is not the issue.
Mental= he says he is sure it's detonation.
Running lean= Maybe a bad injectors, bad wiring, or what i think .. he is just plain running lean for that boost. Or maybe his boost gauge is inacurate and he is really running 14 PSI and running lean. what kind of boost gauge you got?
I mean those are the only real causes, unless you have a crazy amount of exsesive heat somewhere. Tune your AFR! Not only will it prevent this, but it will give piece of mind, and more power.
-Robert