R34 GTT - Bottom end build question

[LjB123]

49 minutes ago, No Crust Racing said:

If you are buying new, just get a spool kit, but better yet ask your engine builder what they like to use. I go with CP because my engine builder told me to. I also went Nitto I beams and CA625 rod bolts because my engine builder told me to. Research shows that's a strong rod/piston combo, but that's a 4 cyl trying to make more power than you air aiming for so the HP/L equation is worse.

Have a quick look on marketplace at least, you would be surprised what stuff comes up for dirt cheap. 

 

Cheers man will have a look

[silviaz]

On 2/20/2024 at 5:47 PM, LjB123 said:

Hey guys. Really would love some guidance here, im stuck between a rock and a hard place and makes me sick that ive just had one thing after another go wrong on a car I purchased a month ago.  
 

Initially showed an exhaust valve leak from a leak down test, got head off, serviced, machined, replaced a few valves that needed replacing and all the guides, upgraded springs and retainers, upgraded cams to Poncam Type B’s, put it all back together. Popped it on the dyno, made only 180kw at 20PSI of boost. Power dipped at peak torque, so not good. They found it had a slight knock on a cold startup, but went away after a couple seconds. Dropped the oil, and found little bits of metal in the oil and oil filter, great! So bottom end needs some attention now. They didnt want to just replace whats broken, they wanted to go all out forged internals (pistons, rods, rings, crankshaft), get it machined, new oil pump, gaskets, bearings, the lot. Reckon it would come to about $20,000 with a tune after all back together. Im not after a ridiculous build. Its a weekend car to enjoy driving and cruising, im not wanting to make 500kw at the wheels. Reason they wanted to do all new parts is so they could cover their workmanship under their warranty, if something old that wasnt replaced broke, it could become a big thing
 

Can i get some guidance on what I should do here? This is my first time getting into this stuff and the car has just been an absolute shit show from the get go, and makes me sick thinking how ive purchased this car and the engine needs to come out. There were no signs of this from the beginning that it had a bottom end issue, and i have not even driven it 400kms since buying it

Do you have a recording of what it sounded like at startup? Just curious to know what it sounds like.