2.2L TII pistons- stock-max hp??

[Turbofreak]

Hello all...

well....

I am of course having a change of plans about midstream here...

I am going to put a stone stock good running 2.2L TII engine in my omnilet and run a TU hybrid To4E50/stage III-.63 housing/ TU 3 inch swingvalve with the TU turbo header on it also....

Full 3 inch exhuast..

255lph HI po pump intank, TU cal with 3 bar map,cometic head gasket, head studs, stock pistons, etc... ported swirlie head with TII 2 piece intake and stock throttle body , +40 injectors, relentless fuel rail or modified stock rail, not sure yet....

2.5 inch intercooler plumbing, all mandrel bends, welded and powdercoated

dual saab core intercooler with both inlet and outlet on driver's side...

No ac....

What is the max horsepower possible while keeping the stock pistons alive in this engine??? I am also running a rebuilt, mildly tricked out a413...alto red clutches and koleen steels and a high pressure shift kit and adjusted governor system...

I have never had a 2.2L before in the car, always been 2.5L... I have heard that the 2.2L would hold much more power on the stock mahle pistons than the 2.5L mahles would hold....

With my combination of parts, it should be capable of around 320-350whp pushing it hard... around 22-26psi boost....

I have a wideband that I will monitor things with and keep it fat and happy....

what do you guys think??? will the little 2.2L turbo II hold the HP???

I think I am gonna risk it....

I am going to put my nasty shortblock together with a neon head and put it in a stripped out 1985 GLH that no one would buy from me...

I am going to try and get it to <2000lbs if I can....

I have a fully built shortblock with GRP rods, coated venoilas, coated bearings, fully balanced, dry sump oiling, total seal rings.... on and on... and I am going to be looking for 550-600whp out of it... Gonna run a VEMS computer on it also!!! TWO WIDEBAND o2's .....

I'm Rick James, BIOTCH!!!!

RYNO
OMNILET
part deux

[Turbofreak]

also, to add to this... I realize that I have heard of stock 2.2L's holding 22-25psi of boost and living....

was this with or without race gas, and also, was it using stock flowing high-psi garretts or ???

In other words, is it a boost limit, or BMEP pressure that breaks the pistons??

I would think it is more related to subtle detonation at very high HP, in other words, rattling one with a stock garrett at 22psi is not near as bad as rattlin one with a To4E 50 at 22psi of boost....

There should be about 75-100hp of true difference there I would think....

I dunno tho'...

RYNO
OMNILET
part deux

[SUPER60omni]

Its all about the detonation factor. any of the stock pistons are like a piece of glass and the SLIGHTEST amount of detonation WILL cause them to self destruct!

I have heard of people making about 300-350hp on all stock internals....just not for very long. If u could biuld a motor with like NO detonation it mike work but good luck because theres always that little bit that u dont hear, your computer dont compensate timing for, and u cant see on your plugs, thats the stuff that kills stock components @ high hp. BUT I SAY GO FOR IT, F*UCK IT U ALREADY GOT A NEW MOTOR

[glhsken]

Ryan, There's a 400whp tII car that's been alive for years running stock Mahles...

[Turbofreak]

cool....

[Turbofreak]

sounds like a go then!!!

awesome!!!

Cool, thanks guys...

RYNO
OMNILET

[Polygon]

I hear that the stock rods can handle up to around 500HP before they go and the sock pistons should be fine unless you run into detonations. However, forged pistons will only last a fraction of a second longer than the cast stockers under bad detonation. You'll be fine with the stock cast pistons.

[glhsken]

Forged are significantly better (not slightly).

[Turbofreak]

especially 2618 forged.... for boost and detonation loads...

much more flexible....

[Turbofreak]

dang... oh well.. I can't afford any more on it right now... I will have to ride out the stockers and keep it easy for awhile...

Thanks for the help guys!!
RYNO
OMNILET

[mo' parts]

i was running the stock mahles for a couple months at 22 psi, no problems(93 octane) then when we took the timing to about 14 in less than a week some of that in-audible detonation cracked #2 and#3. same situation(too much timing, not enough octane), with the forged venoilas, went through two head gaskets and destroyed the head, venoilas are fine, psheeew! keep an eye on the wideband! lol

[DakotaKid]

I am a moron and I ran a stock TII motor to 337 whp and 411 wtrq.

-Bryan

[shelbyplaya]

i'm running about 1million Hp and 3000psi and stock everything and my motors holdin gup fine... hahahahha



i've been running 25psi on mostley stock parts (on my TII cars) and the onley motor i was ever able to melt was a 2.5 TI motor and that was because my 5th injecter failed at 25psi.......

[Putter]

I'm running 14 psi down a TBI motor with no intercooler. Am i flirting with disaster? not really.

Detonation is your engine going boing. Like a symbol on a drumset BOING!