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| Project 3400 Roller Cam Block (Page 67/82) |
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lou_dias
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MAY 13, 08:16 AM
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Yet another delay: the difference between the RCC coil-over and Aurrat Motorsports...
I had no pressure in the right rear strut last year so I am replacing them both. Forgot Archie installed RCC coil-overs in the back...thought I could just swap out everything but the springs... Epic fail...
@Will, the back right strut with no pressure it what made me spinout on turn 3 last year after replacing the bad bearing...if it was the back left, I wouldn't be as concerned...
If it's not one thing it's another...
On a brighter note, my mechanic is actually impressed with the power of the motor now that I'm running on ALL 6 cylinders again. Apparently, I've had a bad ICM for a few years... Well that explains my power loss...[This message has been edited by lou_dias (edited 05-13-2014).]
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Will
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MAY 13, 12:24 PM
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Like I said, having one depressurized and one not would be weird, as that creates an asymmetric roll stiffness.
However, the struts don't need the gas charging to function. The gas charging just makes them less prone to foaming and cavitation when subjected to extended hard use. Your races are too short for that to matter.
In assigning blame for your spinout, are you sure the nut behind the wheel is tight enough? 
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lou_dias
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MAY 13, 01:35 PM
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| quote | Originally posted by Will:
Like I said, having one depressurized and one not would be weird, as that creates an asymmetric roll stiffness.
However, the struts don't need the gas charging to function. The gas charging just makes them less prone to foaming and cavitation when subjected to extended hard use. Your races are too short for that to matter.
In assigning blame for your spinout, are you sure the nut behind the wheel is tight enough? |
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especially when the depressurized one is the one taking the brunt of the abuse on a circle track...
as for the nut behind the wheel, I try to over-engineer the handling because I will never claim to be the best driver...
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lou_dias
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JUN 09, 01:02 PM
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Car's running much better with 2 degrees of advance added back.
In round 3 I easily pulled off a 19 second lap while babying turns 3 and 4.
Faced some completion in round 4 and rather than allowing the car to drift wide, I kept the wheel too tight to left and just spun out when I punched it. Clearly my driving hasn't improved...
Last year, I would have to try hard to get a 19 second lap. If I didn't spin out in turn 2 and beat that Camaro, I was guaranteed a 3rd place finish. Ended up 5th.
Car is having maintenance done and new alignment. Broken engine or transmission mount.
Hope to get it on the dyno and play some more with timing.
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lou_dias
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JUL 24, 10:53 AM
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This is from 7/5/2014
Played with timing, got a few more hp.
I’m at 2:56 and 29:50 …
Ran an 18ish second lap in the 2nd race…which is amazing! Still lost though. The Camaro that beat me should have won the whole event but he lost control in the semi-finals coming out of turn 4 and took 3rd. The turbo AWD Eagle Summit that he lost to should have took 1st after beating him but he blew something in the finals and lost boost and lost to the BOSS Mustang which wasn't even as fast as my 2nd round race. Oh well, that's how it goes in these tournament-style matchups...
Here's the rest of the event in case anyone is interested...
[This message has been edited by lou_dias (edited 07-24-2014).]
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lou_dias
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AUG 18, 05:01 PM
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Well I didn't stick around because it would be a while longer for #'s 4 & 6 but
#1: 100
#3: 110
#5: 120
#2: 95
Well, that answers every question about why my engine has been under-performing...
Now is not a good time to have to do a rebuild. Was hoping to wait until the spring. Also sprung a leak on the internal slave cylinder of the F40...
Just got the call on #4 & 6: 95 & 110...[This message has been edited by lou_dias (edited 08-18-2014).]
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raysr11
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AUG 18, 11:41 PM
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Boy Lou I gotta hand it to you, you can take a licking and come out kicking!!!!! This iron head vs aluminium is wild!
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lou_dias
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AUG 19, 08:13 AM
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| quote | Originally posted by raysr11:
Boy Lou I gotta hand it to you, you can take a licking and come out kicking!!!!! This iron head vs aluminium is wild! |
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Well, it made no sense that this motor used to make so much more power but after the Trueleo intake swap and 7730 conversion, I had a short on my injector harness and they were running 100% of the time to the point where I had a fire start from fumes coming out my valve cover breathers. So my rings probably went to hell at that point so any tuning I did from then on was just never gonna be enough. In a way it feels good to know this once and for all rather than speculate. This motor was built in 2006 so it's served me 8 years but only about 20k miles due to these issues. I'm surprised I don't have bearing issues.
Money is tight right now...I'd like to splurge on a .480/.480 cam but I don't know if the timing will work out...
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lou_dias
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AUG 21, 04:19 PM
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Argh! Mechanic says it will be 2 weeks before he can pull the motor. With the 3 week turnaround time quoted by the machine shop, looks like I'll miss the last race of the season on Oct 7 as well... :/
The + side is I have time to get a cam... .480/.480
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lou_dias
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NOV 29, 04:55 PM
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Since I'm doing another rebuild, I decided to open up the ports to 1 3/8". Also painting them with some ceramic paint...but I'm still going to wrap them.
[This message has been edited by lou_dias (edited 11-29-2014).]
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