My TSP 408 Ws6
Finally after trouble shooting here and there, I was able to find the little problems causing it to misfire and snap at higher rpm. 3 MSD wires were arching pretty bad on my ABS lines, so I replaced the set an new NGK TR55's and she runs way better. Are these normal numbers? Im looking into getting a better tune. It was running about 11.2-11.8 at WOT. They said I could get more out of her with a better tune, but it looked like a decent safe tune. LOL. The limiter is at 6200rpm. I have been looking up ms4 cam power peaks and it seems to be around 6400? Should I get a better tune? Thanks guys.
TSP Built 408
#243 Heads w/CNC Ported
LS7 Lifters
TSP Pushrods
MS4 Cam 111.5 lsa
MSD coilpacks
Fast fuel rails
42lbs green tops
Pacesetter Longtubes
Borla True duals
Fast 90 Mani
90mm TB/ SLP maf
stock box . and dirty k@n filter lol
built t-56
4.10 gears
dana tru trac rear
1000hp chromoly driveshaft
Was tuned on efi live before, and supposivly put 550rwhp without the msd coilpack and green top injectors, fuel pump. Are these numbers right?
510rwhp
471trq
88 degrees outside, humid day. crappy 92 octane lol.
Last edited by lazyboi808; May 25, 2010 at 03:59 PM.
Last edited by DVS99TRANS; Feb 13, 2010 at 01:04 AM.
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No, it a Dana 60 Tru Trac Rear end w/4.10 gear. DNS 1k Horsepower chromoly driveshaft
T-56 Borg Warner built w/Dual Strip Clutch
So the ms4 isnt really a great cam for the 408?
Thanks matt@tsp! I love the motor ..super strong...im just trying to iron out all the kinks. i just recently 10 min ago lol..took the msd coilpacks off, injectors and rails , and pcm.
Sending the pcm to steve at tunedbyfrost.com
Selling the msd coilpacks, goin with stock ls1 or ac delcos, not sure yet
Pressure testing and cleaning the rails and injectors.
Thanks again guys for all the help and knowledge! All is appreciated! aloha guys!
Look into something that had better mid power, as far as i know the MS4 is mostly topend power, you cam pull higher than 6400. Have someone spec out a custom cam with some better LSA and it might sound better. I had the MS4 in my 346 and i hated the idle.
Awesome numbers!







