986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Engine Out - 996 Intake or Any Performance Mods I Should Consider Now?

ike84 · 04-12-2023, 06:53 PM

Lari, I think your question about the longevity repairs is a very good question. If mine were out, there's a list of stuff I'd do just because. This is just my list but here goes

Replace the crankcase breather valve. It's a cheap part and may be responsible for most aos failures. 5 min with the engine out, 90 min with it still in.

Replace the cam wear pads. Not easy with the motor out, but damn near impossible with the motor in (and probably responsible for as much if not more heartache than the ims has ever caused)

Ims replacement... Im not going there

Replace spark plug tubes. Just do it. Again a 5 min job with engine out, royal pain with it in.

Get rid of all the **************** thermal padding in the engine bay and replace it with something respectable.

Some might suggest (depending on mileage) to dig into the top end and replace lifter springs. I forget the guy who detailed these issues (someone help me here - not raby or l&n, but a big Indy who does a lot of M96 work and has an awesome web page on this topic. I wanna say he's in Atlanta?). Not super common but I recall a thread detailing that issue.

Remove intake runners and paint them candy red....

I'll stop there.

Btw, I didn't say the intake mods weren't worthwhile. I have not dynoed mine but my LTFT run -17% on a stock 996 mk1 3.4 tune. If power is linear to fuel consumption (and my afrs are spot on), thats 250ish hp. THATS A VERY REAL POWER BUMP (and it does drive like it). If anyone has a stock 3.2 in SW Minnesota and wants to try a 0-100 sprint to test that out I'm certainly game

.

Sent from my SM-N975U using Tapatalk

04-12-2023, 06:53 PM	#20
ike84 Registered User Join Date: Oct 2020 Location: KY Posts: 1,216	Lari, I think your question about the longevity repairs is a very good question. If mine were out, there's a list of stuff I'd do just because. This is just my list but here goes Replace the crankcase breather valve. It's a cheap part and may be responsible for most aos failures. 5 min with the engine out, 90 min with it still in. Replace the cam wear pads. Not easy with the motor out, but damn near impossible with the motor in (and probably responsible for as much if not more heartache than the ims has ever caused) Ims replacement... Im not going there Replace spark plug tubes. Just do it. Again a 5 min job with engine out, royal pain with it in. Get rid of all the **************** thermal padding in the engine bay and replace it with something respectable. Some might suggest (depending on mileage) to dig into the top end and replace lifter springs. I forget the guy who detailed these issues (someone help me here - not raby or l&n, but a big Indy who does a lot of M96 work and has an awesome web page on this topic. I wanna say he's in Atlanta?). Not super common but I recall a thread detailing that issue. Remove intake runners and paint them candy red.... I'll stop there. Btw, I didn't say the intake mods weren't worthwhile. I have not dynoed mine but my LTFT run -17% on a stock 996 mk1 3.4 tune. If power is linear to fuel consumption (and my afrs are spot on), thats 250ish hp. THATS A VERY REAL POWER BUMP (and it does drive like it). If anyone has a stock 3.2 in SW Minnesota and wants to try a 0-100 sprint to test that out I'm certainly game . Sent from my SM-N975U using Tapatalk __________________ 2000 Box Base, Renegade Stage 1 performance mods complete, more to come When the owners manual says that the laws of physics can't be broken by this car, I took it as a challenge...