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State Of This Engine.

Andyn

By Andyn,
in R Series (R30, R31, R32, R33, R34)

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Andyn Community Regular

Andyn

Posted
Posted

Hey,

Just curious what you guys think of this compression test for a rb20, thats done 144,000 ks (140,125,125,120,125,130). Stock engine with normal bolt ons. 3"exhaust, AVCR boost controller, BOV, Turb timer.

The timing was overadvanced from the previous owner-not sure for how long, and there was a bit of knocking when under load. Planning to reset the timing and regularly keep this engine in shape.

Trivial question - is it possible to improve the comp test after timing is reset, or will the readings not really change? What are your thoughts/guesses about the engine, just from the info I gave above?

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smurf80 Experienced

smurf80

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Posted (edited)

I dont think so To fix the compression on a motor a rebuild is in order.

Readings are a little low with an engine with relatively low kays. Sounds like its had a hard life.

Edited by alphanumeric
Andyn Community Regular

Andyn

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Posted

I know for sure it's a dry test, and when you say Hot or cold, I'm guessing Hot is just after the car has been running.

In which case yes it is a hot test - We drove the car to the mechs and he did the test straight away. This car has been freshly imported and has been sitting in the garage for about 5 months (Not sure how long it has been left in Japan). So I'm hoping as I use it more and give it another comp test down the track it should go up slightly.

Any comments?

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