Eli_gsx
Probationary Member
- 7
- 0
- Sep 9, 2014
-
San Antonio,
Texas
Ok guys bare with me as I am new to the whole online forums etc..
I have a 97 gsx built 6 bolt block
Aries Pistons Eagles rods eagle crank etc, stock 7bolt head with crower 272s
650cc injectors 190walbro rewired
Punishment fmic
Fp3052 with tail external waste gate (38mm vband)
Full 3" exhaust tuning on ecmlink V2
I'm sure I'm forgetting more mods but that's the main stuff.
I've been trying to tune this fp3052 for about a week now. But anything over 17psi I'm dealing with some knock.
Even on 17psi I'm seeing 1.7knock retard in 3rd and about 2.5knock retard in 4th gear.
Air fuel ratio is 10.7-11.1 through out the whole rpm. Idc is at 60-75%
I've heard of ppl running 20-25psi on pump gas with the fp3052 so I'm kinda at a lost right now.
I've done boost leak tests I've checked for vacuum leaks, checked base timing ect and set it to 5* advance, bought new plugs br7es and gapped at 25
Everything checks out great but I just can't get rid of that knock.
Any input would be great, tia
I have a 97 gsx built 6 bolt block
Aries Pistons Eagles rods eagle crank etc, stock 7bolt head with crower 272s
650cc injectors 190walbro rewired
Punishment fmic
Fp3052 with tail external waste gate (38mm vband)
Full 3" exhaust tuning on ecmlink V2
I'm sure I'm forgetting more mods but that's the main stuff.
I've been trying to tune this fp3052 for about a week now. But anything over 17psi I'm dealing with some knock.
Even on 17psi I'm seeing 1.7knock retard in 3rd and about 2.5knock retard in 4th gear.
Air fuel ratio is 10.7-11.1 through out the whole rpm. Idc is at 60-75%
I've heard of ppl running 20-25psi on pump gas with the fp3052 so I'm kinda at a lost right now.
I've done boost leak tests I've checked for vacuum leaks, checked base timing ect and set it to 5* advance, bought new plugs br7es and gapped at 25
Everything checks out great but I just can't get rid of that knock.
Any input would be great, tia