Rebuild after 20,000K on Turbo cars?!!
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From: Where the Wild things Are
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Rebuild after 20,000K on Turbo cars?!! My mechanic told me that I will probably blow my engine after 20,000 miles (or less) and I will have to rebuild my motor, what a pain in the ***. Well, he didn't say blow, he said that the piston rings will wear down that fast and cause compression loss. This makes me wanna run out and pull the thing off the car!! hehehehe, not really. But this still concerns me.
Thoughts?
Thoughts?
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From: Woostah
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I've been mentioning rings for months now but not many people are listening....
Ring blowby is a very common (and big) problem on aftermarket FI vehicles.... I know of people running maybe at most 20K on the SF kit with no probs (forgot who), but it's still too early to tell....
You can minimize blowby mainly by keeping the oil clean. This means changing often, only hammering on the car when it's up to temp, and making sure you don't blow the HG so water gets into the oil system...
This is a big issue that will only become more prevalant (sp?) the longer kits like the SF one are around....
Edit: I sure hope you have to rebuild after 20 million miles (20,000K in title)
Ring blowby is a very common (and big) problem on aftermarket FI vehicles.... I know of people running maybe at most 20K on the SF kit with no probs (forgot who), but it's still too early to tell....
You can minimize blowby mainly by keeping the oil clean. This means changing often, only hammering on the car when it's up to temp, and making sure you don't blow the HG so water gets into the oil system...
This is a big issue that will only become more prevalant (sp?) the longer kits like the SF one are around....
Edit: I sure hope you have to rebuild after 20 million miles (20,000K in title)
Last edited by Havok2k1; Apr 15, 2004 at 11:56 PM.
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I have 30,000 miles on my custom kit and over a year and a half with zero problems, and compression is still 195 across the board, just like stock spec should be.
Stock rings will last just as long with FI as with N/A, as long as you keep the maintenance up and don't overboost.
Stock rings will last just as long with FI as with N/A, as long as you keep the maintenance up and don't overboost.
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Rep Power: 343 The stock piston rings are only meant for a certain amount of compression, the compression is basically raised under boost, putting alot of stress on the internals (connecting rods, pistons, rings, bearings. If a stock d17 will go for 200,000 miles, a turbo will probably go for 100,000-120,000. Now as we know, most people won't make it to 200,000, probably somewhere along the lines of 120-150. So do the math.
If your really looking for longevity, replacing some of the lower end is really a good idea.
But hell no one seems to agree with me so hell....do what you want.
If your really looking for longevity, replacing some of the lower end is really a good idea.
But hell no one seems to agree with me so hell....do what you want.
Last edited by Hawk; Apr 16, 2004 at 07:53 AM.
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Rep Power: 0 I don't think you'd have any issue running FI on a stock D17.
I think the mechanic you were talking to was probably "jaded" by all the idiots who take a "more is better" approach to boosting. Honda engines are tougher than the run-of-the-mill 4 banger...
If you want to be safer, though, do like hawk says and build your bottom end up a bit, I'd think that would be a higher priority over rings, as you can still get home with a cracked ring; You're toast if a piston decides it's not going to stay attached.
Personally, I'd check your compression every 10k or so just to be on the safe side... especially if you're driving it hard. Along those lines, aftermarket rings might not be a bad idea either if you've got the engine apart at any point.
I think the mechanic you were talking to was probably "jaded" by all the idiots who take a "more is better" approach to boosting. Honda engines are tougher than the run-of-the-mill 4 banger...
If you want to be safer, though, do like hawk says and build your bottom end up a bit, I'd think that would be a higher priority over rings, as you can still get home with a cracked ring; You're toast if a piston decides it's not going to stay attached.
Personally, I'd check your compression every 10k or so just to be on the safe side... especially if you're driving it hard. Along those lines, aftermarket rings might not be a bad idea either if you've got the engine apart at any point.
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From: Boise, Idaho
Rep Power: 327 Any tech that would tell you that it will need a rebuild in 20,000 miles i want him to tell me the winning lottery numbers. Do you have his phone number? .....................sheeeez
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From: Boise, Idaho
Rep Power: 327 Originally posted by Fletchman04
how does one build up their bottom end? do you mean do engine work like port, new cam, etc...?
how does one build up their bottom end? do you mean do engine work like port, new cam, etc...?
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From: NJ
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Originally posted by RiceBurnrEX
I have 30,000 miles on my custom kit and over a year and a half with zero problems, and compression is still 195 across the board, just like stock spec should be.
Stock rings will last just as long with FI as with N/A, as long as you keep the maintenance up and don't overboost.
I have 30,000 miles on my custom kit and over a year and a half with zero problems, and compression is still 195 across the board, just like stock spec should be.
Stock rings will last just as long with FI as with N/A, as long as you keep the maintenance up and don't overboost.
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From: OKC, Oklahoma, US
Rep Power: 0 I drive it from OKC to Dallas and Tulsa a lot, and have driven it to Austin and Houston a few times, never had a single problem.
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From: Woostah
Rep Power: 413 I seem to doubt that stock pistons are forged..... They are either cast or hyperuetetic (sp?).... I forget which....
Last edited by Havok2k1; Apr 23, 2004 at 05:13 PM.
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