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I know the FAST102 Feels like it has more snap than the PORTED 92
which we all know is overported. I sold the stock heads so I cant show this unless I pull the 102 off which is no big deal 10 MIN and its off, Fuel
rails and everything.
I have some ideas on the 92 which we know has bigger runners. If the
problem area was corrected It may very well run as good or better than
the 102. Im working out A deal with the tuner to do A A/B test and in retrospect at the time of the dyno the swapouts would have been more time consuming and getting everybody nervous. I would like to do this
before moving on to phase of the build.
I probably wont have any Dyno updated for A month or so. I currently have some problems with the FUEL RAIL on the 102. Although its A direct bolt on the tabs were bent from using the washers to hold down the 92.
When I straightened it out the injectors don't go down deep enough into
the pockets of the 102 lower base. I may need A new fuel rail. I know the
102 is not leaking gas but the fact that the injectors don't go down far enough is troubling. Could use some advice on this.
The 92 has bigger runners and with that in mind and the mod Spin and I were working on may still have possibilities of outperforming the 102. Was going to sell the 92 but I need to do this test and know. After all that 92 made 500 with problems on the dynojet.
Have you tried to bend the tabs to fit? When I installed my FAST 92 I didn't use washers. I bent/reshaped the tabs to fit without using washers. I know that once the FRC are installed you can't see the wahers. But I knew they were there and wanted it to look as factory as possible. It was time consuming with the fuel line attached but possible. It would have been much easier with the fuel rails and intake sitting on a bench.
Have you tried to bend the tabs to fit? When I installed my FAST 92 I didn't use washers. I bent/reshaped the tabs to fit without using washers. I know that once the FRC are installed you can't see the wahers. But I knew they were there and wanted it to look as factory as possible. It was time consuming with the fuel line attached but possible. It would have been much easier with the fuel rails and intake sitting on a bench.
You are probably the only one on the Planet that did such A nice install.
I seen your Pics. My problem is not just bending but straightening I have
another Idea about putting a "O" ring in the cup. Then when I tighten it
down the tabs will be straight and the injectors will sit deeper as they should spray as close to the opening as possible. The injectors sit too far back up in the 102 base. OH I forgot about the Clips, so much for that idea. Tomorrow I will pull it off and check everything out. I dont know what it will look like. Im also looking to see why that one bolt i mentioned about earlier made such A loud crack ?
I promise I will not get frustrated. I am a experimenter by nature. Love tinkering with things and learning. I currently have some issues with the 102. I got CEL's the second time and in checking the LTFT's Im seeing 14
to 20 suggestoing I got A leak there somewhere. I pull it today and do A look see and I still have the problem of the injector depth i mentioned before. I get PO171 & PO174 ( Lean banks) each side.
I promise I will not get frustrated. I am a experimenter by nature. Love tinkering with things and learning. I currently have some issues with the 102. I got CEL's the second time and in checking the LTFT's Im seeing 14
to 20 suggestoing I got A leak there somewhere. I pull it today and do A look see and I still have the problem of the injector depth i mentioned before. I get PO171 & PO174 ( Lean banks) each side.
Thought I found it. 102 Manifold bolts were loose. like 20" LBS. I tightened
it down and thought I had A winner. Still had the same CEL. Its comming off tonight. dont like driving around with A lean condition. I hope I didn't
crack that baby.
Thought I found it. 102 Manifold bolts were loose. like 20" LBS. I tightened
it down and thought I had A winner. Still had the same CEL. Its comming off tonight. dont like driving around with A lean condition. I hope I didn't
crack that baby.
Well, I found out what the cause of the lean condition was. When I torqued down the FAST 102 the Manifold was snagging on to the ARP head bolt washers. I have pics of the FAST 102 plastic botton with gouges
at every head bolt washer. The washer should have been A tad bit smaller. When I post the pics later today it will illustrate why the 92 had no problems and the 102 did. Im glad I did not sell the 92 right away. Joe , thanks to you for pointing out about the LTFT's being above 20 and the scans I did confirmed PO171 & 174. A Lean condition from a leak. I'm glad I did not crack the manifold it just could not seat when I started the torquing. Easy fix Just grind a little off the ribs to clear the washers and good to go. The pics will be most interesting to those who want to run TF,s, ARP's & FAST 102. Dont know anybody reporting in any thing with the TF,ARP FAST 102 COMBO.
Thought I found it. 102 Manifold bolts were loose. like 20" LBS. I tightened
it down and thought I had A winner. Still had the same CEL. Its comming off tonight. dont like driving around with A lean condition. I hope I didn't
crack that baby.
Hang in there Leon...You will get that thing straightened out, I'm sure!!!
Well, I found out what the cause of the lean condition was. When I torqued down the FAST 102 the Manifold was snagging on to the ARP head bolt washers. I have pics of the FAST 102 plastic botton with gouges
at every head bolt washer. The washer should have been A tad bit smaller. When I post the pics later today it will illustrate why the 92 had no problems and the 102 did. Im glad I did not sell the 92 right away. Joe , thanks to you for pointing out about the LTFT's being above 20 and the scans I did confirmed PO171 & 174. A Lean condition from a leak. I'm glad I did not crack the manifold it just could not seat when I started the torquing. Easy fix Just grind a little off the ribs to clear the washers and good to go. The pics will be most interesting to those who want to run TF,s, ARP's & FAST 102. Dont know anybody reporting in any thing with the TF,ARP FAST 102 COMBO.
Interesting? Aren't the ARP headbolts smaller than the stock ones. Must be the TF heads
I promise I will not get frustrated. I am a experimenter by nature. Love tinkering with things and learning. I currently have some issues with the 102. I got CEL's the second time and in checking the LTFT's Im seeing 14
to 20 suggestoing I got A leak there somewhere. I pull it today and do A look see and I still have the problem of the injector depth i mentioned before. I get PO171 & PO174 ( Lean banks) each side.
If you had even the slightest leak it would be +50.
The tune is off on the MAF scaling if its +14 to +20. You likely have +24 somewhere at cruise such as at 55mph on the hiway in 5th gear or so.
If you had even the slightest leak it would be +50.
The tune is off on the MAF scaling if its +14 to +20. You likely have +24 somewhere at cruise such as at 55mph on the hiway in 5th gear or so.
The MAF scaling is off as A consequence of the LEAK. Maf at idle is
like 18 and should be 2-6 G/S. LTFT's are around 14 to 24. The Car runs
well in spite of these problems although the idle seems kind of different.
Here are the pics
#1 Shows the gouging from the ARP washers
#2 Shows the clearance on the 92 bottom shell compared to the 102 shell.
If that needs A tune the 02 sensors will be my hand.
The MAF scaling is off as A consequence of the LEAK. Maf at idle is
like 18 and should be 2-6 G/S. LTFT's are around 14 to 24. The Car runs
well in spite of these problems although the idle seems kind of different.
Here are the pics
#1 Shows the gouging from the ARP washers
#2 Shows the clearance on the 92 bottom shell compared to the 102 shell.
If that needs A tune the 02 sensors will be my hand.
I had a hole in a tiny guage air line that was about 1/32". My fuel trims were +50. thats about the size of a pencil tip.
What you are describing wouldnt even allow a steady idle if it was leaking.
Spin, I hope your right my good friend. It will indicate there is that much more to be had. Put a Electric water pump on and we are talking north
with that big Cam, I have in there.
Spin, I hope your right my good friend. It will indicate there is that much more to be had. Put a Electric water pump on and we are talking north
with that big Cam, I have in there.
Finally got the 102 RE-INSTALLED. Everything looks good. No cel's. Will
give it a performance check in the morning. This thing really put me through the mill.
Finally got the 102 RE-INSTALLED. Everything looks good. No cel's. Will
give it a performance check in the morning. This thing really put me through the mill.
The moment of truth is SPIN is correct as usual. I did however get the Manifold to seal and it went nicely after making some clearance for the Head Washers. I still get the same cel's from 14 to 20 and the MAF is
around 8. Having said that I'm convinced I do not have a leak and the
fact of the matter is I changed the air flow dynamics by simply going
from the 92 to the 102 and they are considerably different internally not
just the 10mm larger opening. In short I need A tune and was looking at
Spins threads concerning MAF TABLE and to get it calibrated correctly
to get those LTFT's around zero. I need to learn a little more about HP TUNERS other than installing tunes and adding patches. I could appreciate some advice on that MAF TABLE for starters as I will be going to A 100MM MAF and 100 MM Throttle body. The ported 90 mm TB got some thick internals and at these power levels represents a restriction.