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My TSP 408 Ws6

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Old Feb 12, 2010 | 11:47 PM
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Arrow My TSP 408 Ws6

Video inside!

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.
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Old Feb 13, 2010 | 12:58 AM
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Sounds about right. My car peaked at 6600, but I have a ported FAST92, MS3(114LSA) and PRC 2.5 5.3 heads and FAST 36# injectors completely maxed out with the stock fuel pump. You'll make a little more when the motor finally is fully broken in also. Good #'s bro, you'll be in the same boat as me needing heads lol. Your peak rpm does seem a little low. Horsepower/Torque crossover for me was around 5500ish. We have extremely close setups.

Last edited by DVS99TRANS; Feb 13, 2010 at 01:04 AM.
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Old Feb 13, 2010 | 02:15 AM
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nice power i think the ms4 is wrong for a 408 but you made some nice power
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Old Feb 13, 2010 | 11:22 AM
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I'd be very pleased with those numbers considering your setup. If you had some 1 7/8 headers, a lid, and a retune to get that AFR up closer to 12.9:1, you'd probably be right at that 550 number. Even that is outstanding for an MS4 cam.
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Old Feb 13, 2010 | 02:09 PM
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So better headers, and a tune? Im happy right now, Im actually debating FI or juice. Not really sure. Thanks guys!
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Old Feb 14, 2010 | 12:00 AM
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150 shot cheap easy power
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Old Feb 14, 2010 | 08:20 AM
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Look like solid numbers to me for the setup. I'd get it broken in more like they said and try for a retune like you mentioned.
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Old Feb 14, 2010 | 12:25 PM
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Im looking into getting a better tune. It was running about 11.2-11.8 at WOT. The limiter is at 6200rpm
You should. That A/F is retarded rich and the limiter is stock. That motor should have been spun to no less than 6700.

Fire your tuner and find another one.
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Old Feb 14, 2010 | 02:27 PM
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Yeah, my a/f is in that range when I'm on the spray. You'll pick up once you get it leaned out.
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Old Feb 14, 2010 | 03:03 PM
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Originally Posted by Damian
You should. That A/F is retarded rich and the limiter is stock. That motor should have been spun to no less than 6700.

Fire your tuner and find another one.
This.
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Old Feb 14, 2010 | 03:22 PM
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Those are good numbers without your a/f being out of whack...........congrats!!!
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Old Feb 15, 2010 | 09:20 AM
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Not bad, you're well on your way and the MS4 isn't considered a "huge" cam by most for a 408, so you should be able to get some decent street manners out of her with a good tune! Keep it up!
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Old Feb 15, 2010 | 03:47 PM
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Is this with the stock 10 bolt?
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Old Feb 15, 2010 | 08:22 PM
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Thanks guys!...

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!
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Old Feb 15, 2010 | 09:17 PM
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Ya that's pig rich.. once you lean it out it should smarten up...I'd spin the engine at least 500 rpm more too.
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Old Feb 15, 2010 | 10:42 PM
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Is it me or its outstanding results for a 243s headed, ms4 cam and 1 3/4 408!!?? Strong results, even with a bad tune!!
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Old Feb 16, 2010 | 02:43 AM
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^^^ Really? What heads and cam would you guys go with? Should I change the headers? Im getting steve for tunedbyfrost.com to give me a mail order, im shipping it prolly tomarrow overnight. And getting dual qtp electric cutouts. I just sold my msd coilpacks and putting stock 40k mile ls1 coilpacks on and new fuel filter, plugs, and wires. Any info would be great guys. Aloha!
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Old Feb 16, 2010 | 05:49 AM
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Originally Posted by lazyboi808
^^^ Really? What heads and cam would you guys go with? Should I change the headers? Im getting steve for tunedbyfrost.com to give me a mail order, im shipping it prolly tomarrow overnight. And getting dual qtp electric cutouts. I just sold my msd coilpacks and putting stock 40k mile ls1 coilpacks on and new fuel filter, plugs, and wires. Any info would be great guys. Aloha!
I don't know much about how much cars should make with specific setups, but it seems like with those headers, aftermarket rear and AFR's those numbers seem very, very strong.
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Old Feb 16, 2010 | 05:58 AM
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I do not know much about cams, but the MS4 is a mild cam for a 408.
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!
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Old Feb 17, 2010 | 02:48 AM
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Not sure what opions u have where you are but I would not do a mailorder tune. And the ms4 is not a bad cam but it would like to be spun higher I would set the limiter to 7k.
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