[03snakeminated]

who would beat who?...nah j/k
well sort of..... A friend of mine has a 05 goat with the ls2 of course, and recently he turbo'd that thing (he piece together a turbo kit) he's making bout 550 to the wheels and said that's about the most he can run before going inside the stock motor,(which i don't know much about ls2 goats, but sort of agree with that) but said (this is where i busted out laughing in disagreement)if i decide to turbo or upgrade to twin screw that the termi motor should be in the same ball park, because the pistons are junk,( this been going back and forth), i tell him 700rwhp with fuel and good tune and he swears there's no way on stock pistons, he's prob going to ck this thread later, so guys school this knuckle head on the subject

[Mach Boy]

The pistons are forged on the Termi and the stock Termi blocks have seen well over 700rwhp. Doing that on the Eaton might be a hard thing to do without N2O, but with an upgrade it isn't hard to imagine at all.

[Smoothgrandmama]

900 Hp has been seen on stock cobra internals

[03snakeminated]

before i bought my 03 cobra i was going to buy a silver 05 gto, i am glad i didn't termi ftmfw

[yojoe600]

cobra can handle 900 its been done

[BoostFiend]

Your friend is smokin the crack. Tell him to put down the pipe and do some research. There are a TON of people running around 700rwhp on stock internals. As the other guys here have said even some at 900+. Of course thats running on borrowed time but they can handle it.

[03snakeminated]

good thats what i thought, if need to push the envelope further, what's needed upgraded pistons and rods for the engine to handle more power?

[BoostFiend]

The problem with the stock pistons is they have tight piston to wall clearance and when they heat up they tend to expand and thats where you start having problems. The rods are pretty damn strong as is the crank. I don't know exactly what you would need but there are a ton of different builds for whatever you desire. You can buy some awesome shortblocks from some very reputable builders. Here is an example of a built motor that the guy that tuned my car builds.

AED 'Signature Series' 800HP Shortblock - $3850

Includes:
Seasoned Iron Modular Block
8-bolt 4340 forged stock stroke crankshaft
4340 'H' or 'I' beam rods with ARP cap-screw bolts
Diamond piston upgrade with valve reliefs for 2 or 4V heads
File-fit 'Moly' rings
Taperwall tool steel wrist pins (necessary when pushing over 800HP)
'Race series' main & rod bearings
ARP 2000 Main Studs
Fully built, machined, balanced, & blueprinted

Other options:
3.75" Stroker rotating assembly: Add $1050
ARP 2000 Headstuds: $325
'Race prep' Crankshaft: $250
'Nascar' anti-oil crankshaft coating: $450
MultiLayerSteel headgaskets: $295
SHM 'Big bore' Aluminum block with billet main caps & ARP Main Studs: $5195
Custom pistons (any dish or dome, etc): Add $300
Supertech high-flow & undercut Nitride Coated 4V valves: $495 (stock size)
Supertech high-flow & undercut Nitride Coated 4V valves: $595 (2MM larger intake)
Custom 2V camshafts: $650
Custom 4V camshafts: $1300
Compcams 4V valvespring & steel retainer pkg: $595
Compcams 4V Titanium Retainers: $575
Oliver Billet rods: $1200

[03snakeminated]

thanks for the info, i'm at 488hp but will be happy with 650-700rwhp, but have a long way to go and deepen my pockets, would be nice to outrun my friends 550hp goat, but i guess am far from doing so

[WilltheThrill]

Originally Posted by 03snakeminated before i bought my 03 cobra i was going to buy a silver 05 gto, i am glad i didn't termi ftmfw

the gto are nice as hell but the cobras are more built for performance and serious modifications off the showroom floor!

SVT knew what it was all about! who cares about really nice interior? i just wanna go fast!

(but dont get me wrong, as with any car......GTO's can be made fast as fuck too......just not as easy as with the termi's)

[futureMACH1racer]

That block sounds alright, but I think that the shortblock that I'm building trumps that one. For the record Boosted LS2 = Booset termi if not greater. LS2's are not to be underestimated by any means.

Here is what my current buildup entails.

Teksid block bored .20 over,
Diamond coated pistons, with 4v reliefs cut, (IF I STAY ON NITROUS!!! flat tops)
Oliver billet rods,
4340 Coated and Balanced Crank,
Federal Mogul HP series bearings,
ARP 2000 main and head studs,
Stainless rings filed to fit,
MMR Hurricane billet oil pump
Canton pan w/windage tray and pick up,
Fox Lake Stage 3 ported heads,
Titanium valvetrain parts,
Fel Pro MLS head gaskets,
Some custom intake work that can't be disclosed,
Either custom ACmillr N/A Cams or Custom MPH Blower Cams

It will be topped of with either a Pro Charger D-1SC and 3 row intercooler or a 2 stage Nitrous system.

[white_fang]

i seen a cobra running 1000 hp on stock block he had it built totally with a hugh cold intercooler.

[acmillr]

Originally Posted by white_fang i seen a cobra running 1000 hp on stock block he had it built totally with a hugh cold intercooler.

MISINFORMATION^^^


The Cobra blocks are generally good for around 800HP. Past that, the pistons start to go bye-bye and the heads begin to lift.

[averagejoe]

Originally Posted by Mach Boy The pistons are forged on the Termi and the stock Termi blocks have seen well over 1000 rwhp. Doing that on the Eaton might be a hard thing to do without N2O, but with an upgrade it isn't hard to imagine at all.

Fixed.

[acmillr]

Originally Posted by averagejoe Fixed.

1000RWHP? Are you serious? the pistons in the Cobra will not take that kind of load.

[futureMACH1racer]

Originally Posted by white_fang i seen a cobra running 1000 hp on stock block he had it built totally with a hugh cold intercooler.

I have seen several cases where around 700-800rwhp the pistons crack. They're forged, but they aren't the strongest.

[AnimalCrackers]

Originally Posted by white_fang i seen a cobra running 1000 hp on stock block he had it built totally with a hugh cold intercooler.

well thank God he got the cold intercooler! those hot intercoolers are tricky! I can't imagine a Cobra wanting to push over 800 unless they're really trying to go the extreme on that engine. But at 700 you should be safe, those engines are tanks.

[WilltheThrill]

Originally Posted by acmillr 1000RWHP? Are you serious? the pistons in the Cobra will not take that kind of load.

ive heard that a couple times too- stock cobra engine w/twin turbo system putting down 1003-1010 rwhp. if its true, it may only make one pass down the track lol......or halfway down the track!

[futureMACH1racer]

Those are the dyno queens that may have pushed 1000rwhp once or twice for a total of 30min.

[03snakeminated]

true about boosted ls2=boosted termis, but after upgrading the internals, today i talked to the gto owner and his motor went bye-bye, the spring on the wastegate actuator was rated 10lbs and some shit happened and the boost creeped up, he said the car ran strong for a little bit and then boooooom, now he has to deepen his pockets to upgrade