300lb-ft on standard rods is the 'limit'? think again.

[Dan1720v]

Pulled these out of a mates S3 this morning. stage 1 revo on oem exhaust, TIP, SMIC's etc etc. 265bhp and 262lb-ft.

The 2 either side are for perspective.

 

[psjunkie]

Caught it just in time??

 

[Dan1720v]

No other real damage, so yes very lucky, just slightly down on compression and a very slight dink in the oil squirter and piston. Piston was sitting about 1mm lower on cyl 3.

 

[psjunkie]

V lucky. And tapping noises etc??

 

[Dannyh]

No way, luck of the draw i guess some people are fine others are not, caught it in time though how did he know there was an issue???

 

[Dan1720v]

Nothing you could hear over the injectors lol. Pulled the sump off and you could see the mark on the skirt from the squirter.

 

[Dan1720v]

It had a minor misfire on boost, new plugs, new coil packs still didnt cure it, compression test revealed that they were all within 3/4psi of each other, then cyl 3 was 15psi down.

 

[psjunkie]

What you changed then

Forged rods?
Cups?

Anything else whilst apart?

 

[Dan1720v]

New pistons and rods, Oil pump, and i'm trying to convince him to go for a new downpipe/mani lol.

 

[Dannyh]

so is the bast way to check with a compression tester, if i check mine at weekend and one compression is massively different to the rest its a bent rod?

 

[ChrisGTL]

EEK! Quite worrying indeed.

Maybe I should check my compression on a regular basis.

 

[Dan1720v]

It can be a bit of a tell tale if they're all pretty much the same. dont take it as gospel, the tapping was very light as you can imagine. thats why I Pulled the sump off to look for a squirter but noticed the small mark on no.3 that wasnt there on any others.

 

[ReDBull]

How many miles has it done?

 

[8bit]

Scary stuff, I guess some folk are just unlucky. I'll be getting compression tests done regularly from now on.

 

[t0m]

Any idea on how smooth the car drove? Was it spiking at all through boost?

 

[Dan1720v]

Hes had it about a month, when i went in it a few weeks ago it felt 'alright' nothing really spikey tbh. he didnt have a boost guage or anything so cant tell you what it was running, but i wouldnt have thought it was that much.

As for mileage. 81,000.

 

[Raks]

What would of happened if you didn't catch the problem??

Iam a total newbie

 

[Dan1720v]

Completly bent, throwing the piston and rod out the side of the block.

 

[csd_19]

Any idea of the map on the car?

From those figures it seems similar to the "old" LCR remaps from APR, Revo, Jabba etc.

Lucky to have caught that in time

 

[Dan1720v]

its a 2007 Revo stage 1. Unfortunatly, I dont know who by.