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Would u guys rebuild the engine or leave at alone when number are around 7.8kg

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Would u guys rebuild the engine or leave at alone when number are around 7.8kg

Old 08-19-16, 04:12 AM
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Would u guys rebuild the engine or leave at alone when number are around 7.8kg

Would u guys rebuild the engine or leave at alone when number are around 7.8kg-1471597104067.jpg

I know factory manual say ,if below 7kg u need for sure

My car start up fine, either cold or hot , no blow by from hour of race

My engine is stock with 99 turbo
Race hour about 16hr

The reason I am.ask opion is, recently I read one shop at japan , saying if ur. Stock FD3S compression number is below 7.5 u should consider rebuild

The theory behind is, the min compression is list way back in FC3S era~
At that time FC have much lower hp, so as for later model inorder to keep 90%of ur engine performance, the C/P number should be over 8KG

Personaly I think if it start up fine ,no blow by and ur CP number are even and above 7
I would not open it😀
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Old 08-19-16, 05:06 AM
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7.7, 7.8, 7.9... I'd keep beating on that engine! Rebuild it when it goes pop or below 6.
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Old 08-21-16, 05:55 AM
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I would probable be considering a rebuild when I start noticing something is fkd up
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Old 08-28-16, 03:44 PM
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Originally Posted by diyman25 View Post
Attachment 583772

I know factory manual say ,if below 7kg u need for sure

My car start up fine, either cold or hot , no blow by from hour of race

My engine is stock with 99 turbo
Race hour about 16hr

The reason I am.ask opion is, recently I read one shop at japan , saying if ur. Stock FD3S compression number is below 7.5 u should consider rebuild

The theory behind is, the min compression is list way back in FC3S era~
At that time FC have much lower hp, so as for later model inorder to keep 90%of ur engine performance, the C/P number should be over 8KG

Personaly I think if it start up fine ,no blow by and ur CP number are even and above 7
I would not open it😀
NO unless you are getting paid to race and people are beating you because of the engine

I've heard 5.8 as rebuild time. I drive mine until it won't hot start.
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