At that power level the Sachs 2.5 seems to be a popular choice.

 

That's what I have now, wondering if it'll hold the 650ish torque at the wheels.

 

They are rated to 800 I think.

You would be fine.

 

I have a Sachs 2.5 in mine and it works fine. If you think you will ever do bigger turbos than stock I would recommend you skip the Sachs and just get an ERP triple carbon.

Dan

 

Meh you don't need a triple. I have the 2.5 w/ 67mm turbos where we stopped adding power to keep the stock rods happy. Even there the 2.5 holds just fine. I'd only go to the triple if/when you need rods due to power. Like 750wtq or above.

 

The cost difference between a ERP triple and a Sachs 2.5 w/ a flywheel is negligible. You know both of us are going to end up with built motors in the next year or two. There is something to be said for incremental upgrades, but there is also something to be said for doing things once.

 

Speak for yourself man... my wife has allocated my car funds to building our new house. Well.. really when I told her about the new media room and garage and automation system that was part of her house, she informed me that my car money didn't exist any longer :-)

 

Don't worry, we will be paying 8-10k not 25 .

 

? PM me what you're talking about. No way we get engines done for 10k....

 

PM me too for 8-10k for built engine!

 

It's an odd market because you can get a GTR block from T1 Race Development for $6-$7k and make 1000+ hp on it all day long. $25k for a very basic shortblock build makes no sense.

 

Rix I agree completely.

 

yeah by the time you add the flywheel you are almost there. i can hook u up on ERP too. i did a lot of testing on my car when they first came out. i did some research into the sachs and it sounds very attractive from the driveability standpoint. ive only driven a 2.5 sachs once and it was to make one 1/4 mile pass in my friends 996..... 10.36@136 with 1.68 60ft RWD and lifting the front tire. ive had the ERP for 2 years now and it can take some abuse.

that sounds more like a 996 price than a 997.

quick rundown of a barebones build looks like this ( roughly and from memory) :

-Carrillo Rods with CARR bolts 1500$
-Raceware headstuds 700$
-GT3 RS Oil Pump with dual pick ups 1400$
-997TT intake lifters if you want to refresh 1200$
-Lightly ported heads 1000$ +
-Engine Rebuild kit ( gaskets, bearings, seals, o-rings, piston rings etc) this is what made 996 cheap at only1200$. I just got a quote on same parts for 997 and its 3600$ +

So if you DO NOT do the lifters or the heads you are now at 7200$ with no labor, shipping or fluids which are another 300-400$ since you have oil, coolant, AC, PS and clutch. But why not have the heads ported if everything is apart. Good gains to be had and increase efficiency of he motor.

Reason being is that rod and main bearing sets are only available in dealer boxes costing 1.4k alone and same goes for piston rings costing 1.5k. 996 mains can not be used eiher.

Than you got the labor to pull the motor, tear it down, clean it, weld coolant fittings, rebuild it, o-ring the heads for high boost, time it and reinstall in the car.

I dont think any good tech in their right mind will touch a 997TT build for 8 or 10k. 12-15k is probably more realistic.

 

Great information, thanks for sharing. I wish there were more discussions like this on here. Maybe I need to start reading the 996 section . I was completely guessing on the cost of parts - guess I wasn't that far off. I could stomach 12k, it's the quotes for 25-40k that I've been getting that I can't handle.

 

I have been told the rods and head studs are DIY......I have done them in other cars. Porsches aren't unicorns!