The 421 is alive!!!
04-03-2011, 09:15 PM
#1
Race Director
Thread Starter
The 421 is alive!!!
The stock L-98 was taken out in July 2009, and the 421 was dropped in its place. I still cant believe it was that long ago, but such is life.
Most of you know how busy I have been the last several years hence why the car has not been top priority. I am even suprised that it has come this far.
Fast forward to April 2011, and the car has finally been started, and I absolutely love the sound of it. It idles at around 750 rpm which is a tad bit low I think. The tune is not bang on, but I believe its somewhat close. My engine builder Jim Barth who is a respected forum member of the CF will be flying in near the end of May to assist me in tuning this monster.
Originally when the 421 was first started the amount of blue smoke due to the start up lube, and the timing being off was certainly a stressful moment being the first high performance motor that I have had built for me. But after I got someone who was experienced in the FAST system, and the way I had it setup, the blue smoke went away at idle, and the idle its self calmed down, and my mind was eased a wee bit. If the motor was damaged in any way because of how much fuel was being dumped down on initial start up, I certainly would not be building another one. I doubt washing the rings wouldnt be a good thing.
The roads are still a little dusty so I wont be driving the car just yet, and it might still snow yet. The airfuel on the FAST on idle is in the safe range, but like I said it will need to be fine tuned, and I will be throwing it on the dyno in May for chits and giggles when Jim flys north to Canuckville.
Anyways here is a little video of the 421. I am sure I will have my issues, but if it goes like it sounds then I will be a happy camper and the wait will be worth it!
It sounds better in person, but I figured a video is better then nothing!
More vids to come down the road. Take care guys!
-4 Bolt Bowtie block
-AFR 195cc Eliminator Comp Ports
-11.6 CR.
-Callies Crank
-JE Pistons solid dome
-Crower Rods
-TPIS Miniram ported
-Comp Cam XE Hyd Roller 236/242 .62x/.58x
-1 3/4 Hookers to 3 inch Billy Boat SS exhaust with reasonators and mufflers
http://www.youtube.com/watch?v=NPLT_VmK-sg
Most of you know how busy I have been the last several years hence why the car has not been top priority. I am even suprised that it has come this far.
Fast forward to April 2011, and the car has finally been started, and I absolutely love the sound of it. It idles at around 750 rpm which is a tad bit low I think. The tune is not bang on, but I believe its somewhat close. My engine builder Jim Barth who is a respected forum member of the CF will be flying in near the end of May to assist me in tuning this monster.
Originally when the 421 was first started the amount of blue smoke due to the start up lube, and the timing being off was certainly a stressful moment being the first high performance motor that I have had built for me. But after I got someone who was experienced in the FAST system, and the way I had it setup, the blue smoke went away at idle, and the idle its self calmed down, and my mind was eased a wee bit. If the motor was damaged in any way because of how much fuel was being dumped down on initial start up, I certainly would not be building another one. I doubt washing the rings wouldnt be a good thing.
The roads are still a little dusty so I wont be driving the car just yet, and it might still snow yet. The airfuel on the FAST on idle is in the safe range, but like I said it will need to be fine tuned, and I will be throwing it on the dyno in May for chits and giggles when Jim flys north to Canuckville.
Anyways here is a little video of the 421. I am sure I will have my issues, but if it goes like it sounds then I will be a happy camper and the wait will be worth it!
It sounds better in person, but I figured a video is better then nothing!
More vids to come down the road. Take care guys!
-4 Bolt Bowtie block
-AFR 195cc Eliminator Comp Ports
-11.6 CR.
-Callies Crank
-JE Pistons solid dome
-Crower Rods
-TPIS Miniram ported
-Comp Cam XE Hyd Roller 236/242 .62x/.58x
-1 3/4 Hookers to 3 inch Billy Boat SS exhaust with reasonators and mufflers
http://www.youtube.com/watch?v=NPLT_VmK-sg
04-03-2011, 09:23 PM
#3
Burning Brakes
Member Since: Nov 2010
Location: Spartanburg South Carolina
Posts: 995
Likes: 0
Received 0 Likes
on
0 Posts
That sounds freakin AMAZING!!! Jim told me to look out for when you posted up this vid cause i have the same exact cam in my 396. Sounds great, any shots of the engine bay? You must be psyched to get it all tuned
04-03-2011, 10:00 PM
#4
Race Director
Thread Starter
Thanks bud. I think the full 3 inch exhaust gives it a nice exhaust note. Not too mention the cam, cubes, and compression.
It will all come together in time hopefully.
04-03-2011, 10:11 PM
#8
Race Director
Thread Starter
I havent even had time to drive it yet. The tune wont be complete until I have a few days with Jim, and we datalog it.
This FAST stuff is all new to me, so Jim will be teaching me how it works.
I couldnt even rev it up because my daughter was sleeping, and its very loud anything past 2500 rpm's and up.
BTW thanks for the compliment Larry. Means alot coming from a guru like you.......
On the numbers comment. I think it will be making north of 400.
04-03-2011, 10:20 PM
#9
Safety Car
Member Since: Sep 2003
Location: Orange County NY
Posts: 3,571
Received 0 Likes
on
0 Posts
St. Jude Donor '10-'11-'12-'13
Freakin' awesome, man - congrats!!!!! 
Sounds bad ***!!!
My cam idled best at 950 rpm; 750 does seem low, but you'll get that all squared away as you fine tune it.
Sounds bad ***!!!
My cam idled best at 950 rpm; 750 does seem low, but you'll get that all squared away as you fine tune it.
04-03-2011, 10:21 PM
#10
Race Director
Thread Starter
04-03-2011, 10:25 PM
#11
Le Mans Master
Member Since: Apr 2005
Location: Scarborough ONTARIO
Posts: 8,077
Likes: 0
Received 3 Likes
on
3 Posts
Sounds phucking bad azz, when you be driving on street/hwy ? i cant wait to drive side by side, dude mine was tuned as well yesterday and i had no problem beating GTR.
Sounds great!
04-03-2011, 11:53 PM
#18
Race Director
Way to go. We're happy for you. The best thing would be to go out and drive the thing and load up the rings so they will seat. A lot of idling won't be good. You may have to wait for Jim to come around and tune the thing. Smoke on startup is normal for a new motor because of all the oil in the cylinders and rings. Congratulations. Willie
04-04-2011, 01:22 AM
#20
Instructor
Member Since: Feb 2009
Posts: 142
Likes: 0
Received 0 Likes
on
0 Posts
Sounds like you took the restrictor plate off the black dragon. Is she street legal? Don't worry, I'll keep it on the down-low. Congrats! She will howl up the back straight at Mosport.