Project 3400 Roller Cam Block (Page 82/82)
82-T/A [At Work] AUG 31, 10:01 AM

quote
Originally posted by lou_dias:

Also, I want to give a huge shout out to Rei aka La Fiera for providing me the parts I needed for this build. He designed my cam profile and sources the internal components I needed for the short block as well as my bigger valves and springs.

Incase no-one recognized it - I am running his old intake from several years ago as well. I have been sitting on it for like 3 years waiting for this build.




La Fiera also sent me a spec'ed high-volume oil pump too for my 3.4 V6/60 rebuild. He's been awesome, and the two of you have both been a huge asset to the forum (along with others) in the way you've both really pushed the limits of these engines and the V6/60 motors!
lou_dias AUG 31, 01:51 PM
...and now for some disappointing news...
Code 41 will not go away. I've swapped the ECM and the ICM. Next step is to probe the wiring to check continuity. No racing will happen today. I may be skipping the race on Sept 14th as well due to a reunion.

So that will leave me with 1 race left for the season. I guess I will try to make the most of it...
lou_dias SEP 11, 11:32 PM


Here's the promised dyno of the extra ~21 ft*lbs of torque I picked up just by leaning the mixture closer to 13.5:1 below 4000 rpm.
The red line is with the cutout closed. The green line is with the cutout open. Same tune. Only difference is the open cutout...
You truly don't see some gains from it until past 6000 rpm.

Increases start to come on at about 4800rpm but not worth it yet.

Looking forward to fixing that Code 41 and pulling some timing and fuel out. The pre-detonation is killing my peak power.

[This message has been edited by lou_dias (edited 09-11-2024).]

La fiera SEP 16, 10:21 PM
Dang!! You are making some P'wer now boay and more later!!
lou_dias SEP 17, 09:02 PM
It's not quite where it should be. I compare the original N1A$T code to my code and I was running a lot of extra timing. I believe the guy I co-tune with did that without me noticing how much he added. I'd like to hit closer to 230 rwhp once I stop pre-detonating up top.

I've dialed it back... However the Code 41 is preventing me from doing anything.

I'm waiting for a new MEMCAL carrier and adapter as looking at the code, it seems code 41 has to do with the fuel setting vs what it reads from the resistors on the MEMCAL. Hopefully I have it running nice again at the end of the week.


Well, it beats running simulations for 15 years!

[This message has been edited by lou_dias (edited 09-17-2024).]

lou_dias MAR 26, 04:07 PM
Update.

Took a while to find new front coil-overs. Found QA1 8Q53's. My 8" springs were down to 6". Old coil-overs were completely shot.

I purchased new connectors to create a new ICM / Crank Sensor cable adapter. Hoping that fixes code 41 as moving the engine ground didn't fix the issue.

Racing season starts mid-May and this code 41 is a deal-breaker. :/
lou_dias APR 28, 04:41 PM

Apparently my problem was f@cking dust!

[This message has been edited by lou_dias (edited 04-28-2025).]

lou_dias MAY 11, 11:51 AM
Track felt slick rolling onto it so I lowered my drop-clutch rpm and semi-stalled at the launch :/

Another problem between the steering wheel and the seat.



Positives is the car is fast. I was able to over-take him by turn 2. I totally shifted too soon though as I should have pulled farther ahead in the back-straight-away.
I, as usual, stayed too far out in 4 and gave him over a length lead. Probably should have put it back in 2nd, but still only lost by about a nose.

[This message has been edited by lou_dias (edited 05-11-2025).]

lou_dias MAY 12, 10:12 AM
A different angle.
It really shows how wide I let it get in turn 4. Looks like by doing so I handed the other from being 1 length back to being 2 in-front, then I only had time to make up 1 of those by the time we crossed the finish line.
You can also see the double nose bob on the launch where I almost stalled it.
La fiera MAY 12, 07:55 PM
Glad you are finally racing!