will soon be getting my 996tt and im looking to make as much hp as possible on the stock internals. I am hoping 700+ is doable. The car now is an X50 with some mods. I think the guy said its making about 510hp now, but i will want much more.

Thanks!

 

Powell made 868. TTDude made 900+ on his 997 TT motor. Both of these guys now have built motors. But they didn't blow up before they began their builds.

MBailey, Paulie, Jitsu, AtomicZ and BMoores all make more than 700 on a stock block.

 

i also make over 700 whp on stock block and issue here either

 

There is no definitive answer to this question.

With a good tune/gas the stock block will probably survive a dyno pull of 1000whp. I would not wager on too much more after that. Really the question becomes more like, "How long do you want it to last?" There is some history on the board with 700-800whp on stock blocks having decent longevity. I suspect above 800 whp longevity drops precipitously...

 

We have one thats proto tuned making 800 plus for 3years now but it only runs c16

 

Question, how often do you replace plugs if you only run C16?

 

I would say 700whp and 700wTQ max- I like those numbers...

 

More often than we like . But if you go back n forth with the unleaded .plugs last a lot longer

 

Excellent post, agree 100%.

Each car will be different... while there is some precedent for 700-800+ whp 996/7TTs on the stock block - it doesn't correllate to every 996/7TT being able to do so. In fact, some have bent rods even with good tuning and fuel around the 700 whp level.

Bottomline, the risk goes up as the power/torque output levels go up... there's no magic threshold that goes from "safe" to "risky."

You pays your money and you takes your chances...

 

Is that your car ? Is the 4.43 also on C16 ? you can pm if you like ...

 

A better question would be how much for how long. Kevin at UMW posted some pics once of some bent rods that were in a motor that had lived its life on racegas, but wasn't making more than about 700BHP.

How much and for how long... When I had my 996TT, my goal wasn't HP as much as it was making the most efficient amount of safe power. Larger intercoolers, better intake ducting, better turbo hoses, and proper wastegate springs, along with more fuel. If I buy another 996TT or GT2, those will be my focal points.

Mike

 

The car that im speaking of is a 996. The 4.43 is a 997. That run was done on c16.And stock motor. My opinion is that once you get up around 27 28 psi .You run the risk of lifting the heads with stock studs

 

Its all in the TUNING. i have saw bent rods with 600 hp

 

I agree with you and have seen the same things. I think that the way the car is driven has a lot to do with it.

 

Happy new year tim hope all is well. I also feel that those small hard hitting turbos are responsible for alot of problems . whats your take on that ?