Friend of mine's 11 had a 50 shot without tune, a 100 shot with tune (that he turned up to a 200 shot with Torco), he beat on it hard, sprayed it in 6th gear, back to back to back runs on the street/track, he killed the stock clutch and Ram clutch in short order though. Car went 1.48 60 ft's. Car was shifted at 7300+ on the bottle.

Then went to a McLeod Twin Disc and Novi 2200 w/ AIS Meth Kit, it made 627 and he beat on it a bit, switched Flowmasters for Dynomax Race Bullets and had it retuned more aggressively, it made 687, and then lets just say he had a "long long long long run in 6th gear", it tossed the belt, overheated until car shut off, and still ran after that. He did break the MT82 the following week after the belt tossing event, and went to an auto. It finally dropped a cylinder recently after some 6 second 1/8 passes.....over a year after the belt tossing overheating event.

Another friend's 2012 GT went to a Vortech T Trim w/ AIS Meth Kit, long tubes etc pretty early in it's life, it made 610, he sold it, that guy went to a boss manifold, pulled it for 2 more psi, had it remote tuned and it's still doing fine, but doesnt get beat on much, and NOTHING like the 2011 I mentioned above did.

They seem to do pretty well, but anything can go wrong, and there are NO "cheap" motor fixes for them, even stock motors are $$$$.

I will say both cars were pretty lazy with the blowers, and didnt run as well as they dynoed, although I havent been in the 12 since the intake & pulley swap. The 11 5.0 was way faster on the bottle than with the blower it seemed.

 

huh the comments above got me thinking now, I drove a 12 with the ford racing whipple supercharger on 5 psi and it ran probably like mine or maybe alittle better but nitrous would be alittle cheaper, and these motors seem pretty stout

 

This is a good question, something I've wondered myself. These engines are still relatively new, and people are still experimenting with them. What works best, what combos make the fastest cars, etc. A big thing seems to be the gearing... a lot of people are sticking with the old school practice of a bigger gear in the back end makes for a faster car, but with the way this new 5.0 puts out power, it appears it is actually the other way around.

I am going to wait a few more years until there are more tried and true power solutions, I will let other people do the learning for me. I would be happy with a little over 500 at the wheels I believe, and it seems so far that is a realistic number while still expecting good reliability and longevity. Time will tell.

 

600whp is considered by most to be the "safe" limit on pump gas, if you access to E85 then closer to 700whp as the GT has the same rods as a BOSS but none forged pistons. Detonation is what kills the none forged pistons(pump gas) so E85 is your best friend if you have access to it. The stock clutch will hold just fine a 600whp provided you dont take it to the track with sticky tires all the time, but for street duty, the stock clutch is fine for a good amount of time. If/when you go with an upgraded clutch just get a factory BOSS clutch and be done it it, they will hold 600+whp FOREVER even at the track on DR's/slicks.

Hope this helps.

 

On very high HP applications the cylinder walls can crack at the coolant ports but this is roughly at the 1000 HP level. It's really more a factor of how 'safe' your calibration is. Run any motor on the edge and it will not last long.

BTW the Boss engines do have different rods - slightly larger beams but still powdered metal. They also use tri-metal rod and main bearings instead of aluminum on the base Coyote engine.

 

Some talk on YB about how the old mod motors (teksids) were stronger than the new 5.0s. I was sad to hear Beefcakes sportsman block cracked.

 

Anything over 600rwhp is a crap shoot. Running the Coyote above 7000rpm at this power level, could allow for internals to come apart a little sooner.

 

All these years later and they still won't hold more than the old 5.0 pushrod.

 

Beefcake cracked the sportsman?

 

Terry cracked his sportsman block?! When did this happen?

 

He was at MIR this weekend

I saw him run a 12.45

 

Thought Terry's car was blue?

 

atlanta

I seem to remember he was running a lot faster at Atlanta a few weeks ago? The limit will always depend on the application and how you use it. No 2 people will get the same out a particular combination. In the end everything will be subject to rapid energetic dis-assembly at some point.

 

From what I read terry blew a head gasket. I never saw anything about a crack sportsman block. But maybe they had new info that I missed.

 

some good info here

 

so 600hp internals 1,000hp is the limit for the block

 

Ummmm, based on what?

I see the blocks splitting at much less than 1000.

 

Wasn't going to say anything until Terry did.. Yes, he split the block in the valley.. talked to him a few evenings ago. Sucks..

 

Like I said. And the 1000hp on these blocks being considered safe is a pipe dream.

Seems like anything over 600 is a "crap shoot"

Just like the old pushrod blocks, there were some that survived at 600 plus, and some that split with far less.

 

Well, that was supposed to be a beefed up version.. with thicker ribbing, cylinder wall support, etc. I'd say that it's definitely stronger than the stock block. The stock block.. I wouldn't trust past 6-700whp. The sportsman block is probably good for 850-900whp.

This platform is still relatively new.. give it some time.

 

Awesome discussion and information here. I have 2012 GT with a JTL cold air intake, boss intake manifold and custom tune from Evolution performance. I was thinking of buying a single turbo kit from Hellion and would want around 7 psi but I'm worried about the stock block and internals. Any thoughts?

 

me too im thinking of putting a novi or vertech in the future and mine is currently tuned by jon lund

 

I've installed/driven most of the different setups out there.. Honestly, the Roush kit is probably the nicest. It makes TONS of useable power, and gobs of low end TQ. It's the most practical for a street car, IMO.

Travis

 

couple guys in my area with roush blowers 750+ whp on stocks block/internals been running over a year...one guy i know sprayed a 200 shot for a year then bumped up to a 250 and it ran like that for a few months...say 10-15 passes..

 

for the roush kit do you need to grind the timing cover? i know you have too for the whipples

 

Yes.. you have to trim the cover a bit.. Nothing major.

 

How about the Paxton or Vortech superchargers? I called JPC yesterday and they offer a street fighter kit for around $5500 bucks. Seems like a good deal.

 

I have the beefcake speical paxton, with stock pulley, id1000 injectors bap, jlt, runs strong, never tracked, just a fun dd with 600whp. Never pulled it past 7k rpms, and don't plan to.

 

Love my roush tvs. Everything I wanted with a multipurpose agenda for my car. Im old school and love the feel of a "big block." Really hate to hear he cracked the sportsman...