944TurboKid

Ok before I have somebody say the search the forums, I already did. I didn't find anything that was newer then 5 or 6 years ago. So I will arise the question. Is there any reliability issues with the 340 kit? My car is bone stock right now but I plan on changing the head gasket to a widefire gasket but besides that I don't know what else (if anything) that would need to be done.

944TurboKid

If any previous 340 owners are on here your insight would be greatly appreciated.

carlege

Do a search on the kit. Some owners complained of not getting 340

arthropraxis

I know the previous owner of my car did a kit like that. Now he has a signature line that recommends to replace your rod bearings.

DDP

Don't replace the headgasket unless it is bad. There is no reason to go through all that work for the a widefire. I wouldn't count on 340 whp from that kit.

sydneyman

Hmm that rings a bell for some reason... good advice, whoever that guy was!

arthropraxis

Since you are changing your signature line, you need to change the 951 to 951/LS1. Stop by the next time you are traveling through and take it for a drive.

kghaas

I don't have the 340 kit, but I do have all the bits which goes into the kit and some more, all from Lindsey. I have the Super 65 turbo and the old MAF2 and Mafterburner. It does produce. It was dynoed at 390RWHP.
All stuff works great, but I do have issues with the turbo blowing Oil. I will in the near future put in a restrictor to see if it helps.

If I should go for this today, I would go BB turbo!
If you like the price and spec, I say go for it.

Playing with the Mafterburner has also gotten me interested in EMS, so I will go for this in the summer. If you are interested in EMS, I would go that route in the beginning. Saves money in the long run...

sydneyman

you know i will!

944TurboKid

I heard that about the bearings. do you replace them with oem or aftermarket.

sydneyman

oem! always!

944TurboKid

How often should they be replaced?

944TurboKid

Also, what if I had the motor oil analyzed to see if the bearing are still good? Would I still need to replace them even if they are in good condition?

sydneyman

i would replace around 100,000 miles if its just a street car. i would do it by hours if track driven... regardless of oil analysis i would think of the rod bearings as preventative maintenance. would you use the same timing belt longer than 4-5 years based on rubber residue inside the cover? not truly the same thing but i wouldn't...

OUNATE

How many miles are on your engine? The 340 kit has been on my car for about the past 6 years with no issues, granted that's only about 12-15000 miles and it's currently sitting at 57 total. Unless you're nearing 100k miles I wouldn't worry about the rod bearings quite yet. Tuned on the dyno for 16 psi at about 305 rwhp I figure that's a reliable level of boost and it should give me many more years of fun. Good luck