what compression should a Gts-t R33 have

[scottman]

i got mine checked it come out with all in the 120's but there all around them same

broke that checked it said it was all good but that seems low to me is it ok

[fluent]

afaik

Factory specs are 135-185 psi per cylinder and each cylinder being around 120 with an ~<5psi variance is decent for a >100,000km car.

Just means your car isn't in top condition, someone's had fun in it but it should be alright for a while (That's assuming my factory spec figures are correct)

[scottman]

yea thanks man its done 120000k but i think it on more nice car but

I won't b boosting it will last me i will care for it

[fluent]

yeh but it doesn't mean you can't have some fun in it!

just service it regularly and treat it right and it'll last you several years

[DivHunter]

Or get it rebuilt with forgies and hi-flo turbo

[knore]

i thought they were sposed to be around 155psi per cylinder for a healthy engine

do those el cheapo compression testers even work alright?

[siksII]

i got mine checked it come out with all in the 120's but there all around them same  

broke that checked it said it was all good but that seems low to me is it ok

ingnore the other comments, outirght compression figures are not very relevant, as things such as how warm the engine is and battery voltage affect the outright figure.

what is important is that all figures are even, as it is unlikely that all cylinders have the same damage (if any).

usually a bad result would be say 5 cylinders having similar compression (within 3 or 4psi) and one cylinder (usually cylinder 6) having compression which is 25psi different.

as long as the figures are within about 3% from max to minimum its fine. so basically from what u explained the motor should be fine. if u really want to be sure do a leakdown test but that is usually only done if compression test turns out bad.

Knore's comment is sort of correct as most cars show compression around 155psi

[scottman]

they all got ok they got

1 124

2 125

3 125

4 123

5 124

6 125

is there a way to higher then compression

also i hear low compress means more lag

the tune is ****ed on the car so they r retuning the link computer the day i buy it they said thats y it is laggy and shit

[Al]

Personally i would just get the link retuned, you gain so much mid-range power and torque with an aftermarket ecu.

[siksII]

they all got ok they got  

1  124

2 125

3 125

4 123

5 124

6 125

is there a way to higher then compression  

also i hear low compress means more lag  

the tune is ****ed on the car so they r retuning the link computer the day i buy it they said thats y it is laggy and shit

those compression figures are fine.

also the compression u are reffering to when u say it means more lag is something u cannot change. what u are reffering to is the compression ratio, ie. the relationship between the volume of air in the cylinder when the piston is at the bottom of its stroke compared to when its at the top.

u can make it less laggy with good tuning, although with a stock turbo it shouldnt be laggy either way.

[scottman]

yea its getting retuned in a few days