dasic1
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RE: DASIC1 SW20
2010/02/14 22:26:31
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2 and 3
2 is the closer one in the pic with only one small bit missing
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evl_132
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RE: DASIC1 SW20
2010/02/14 22:35:58
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Great to see you have been doing everything yourself, very cool indeed. Looking forward to this build!
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Mrskylighter
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RE: DASIC1 SW20
2010/02/14 22:38:25
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Exactly what happened to my stock gen2 bottom end. Except I had three dead pistons :( Good luck with the build! quote:
Originally posted by dasic1
Im surprised thats its a heavy duty clutch when I went to first look at it I couldnt take it for a test drive because it needed a new clutch and they said they wouldn't be putting a hd one in.
Finished stripping the engine today and found the no 2 piston is also cracked. Not sure why it didnt show up on the compression test.
Should be pickin up a 5s bottom end Monday or Tuesday.
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dasic1
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RE: DASIC1 SW20
2010/02/14 22:48:34
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evl_132 None of my friends are really into cars and cant understand why im always doing something to it but I enjoy working on it as much as driving it. And im a tight arse.
Mrskylighter must be the turbo haha
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-Totenkopf-
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RE: DASIC1 SW20
2010/02/14 23:10:03
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quote:
Originally posted by dasic1
2 and 3
2 is the closer one in the pic with only one small bit missing
Interesting... Gen 3 obviously. Leaning out of inner two cylinders causing detonation was a well know problem with the gen 2, think the gen 3 made some slight improvements, perhaps it is still an issue? Weren't running any individual cylinder trims? Obviously this sort of problem is hard to detect without being able to measure the AFR on each exhaust runner, or alternatively, exhaust gas temperature. To avoid the same happening again, perhaps have some exhaust temp sensor bungs fited to the manifold and make use of them when tuning to dial in some trims to individual cylinders if required. Your tuner is competent?
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just_ace
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RE: DASIC1 SW20
2010/02/15 02:03:03
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i thought the middle two cylinder lean out was due to the center feed manifold, hence the prob was still there in a way for gen3's but maybe because of the better ecu and perhaps stronger pistons/lower compression and rings it didn't destroy itself as easy as the gen2's?
so, how far you gonna go with the rebuild?
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dasic1
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RE: DASIC1 SW20
2010/02/15 09:18:33
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No not running any individual cylinder trims.
I thought it was more of a manifold problem as well.
At the moment im thinking of
Pauter rods (5s size)
cp pistons
264 hks cams, springs and gears
w2a intercooler
engine oil cooler
maybe a caldina intake manifold
unsure of what clutch
Any recommendations?
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MR2QIK
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RE: DASIC1 SW20
2010/02/15 10:07:04
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Gen3's have roughly the same problem as Gen2's in regards to the lean out, but maybe not as severe. Looks like the tuner went a bit too far looking at that. He probably should've stayed on the lower side of 11:1 C/R to compensate or made use of the Autronic's individual cylinder abilities.
A different intake manifold would be good in the future.
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purple5ive
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RE: DASIC1 SW20
2010/02/15 12:46:28
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Andy sorry to see all this mess man but i guess you can now get the bigger engine done
need a hand let me know iil come down and help even if its just handing over tools
cheers
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lmt
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RE: DASIC1 SW20
2010/02/15 14:04:01
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clutch. OS twin plate. Forget those single plate clutches.
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robk
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RE: DASIC1 SW20
2010/02/15 17:06:40
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Dasic1...what power/boost were you running when the stock internals failed? It's Gen 3 right?
I'm interested to know because my engine is coming out soon to make it easier to change the clutch, timing belt and cams, and I'm wondering whether to spend the extra $ to rebuild it while it's out, in anticipation of if breaking on stock internals when the power is increased to around 240kW atw.
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dasic1
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RE: DASIC1 SW20
2010/02/15 23:13:08
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Ive been doing some research and looks like a twin plate will be the way I go
What options is there for intake manifolds?
robk Yeah its a gen3. It made 187.8rwkw @20 psi.
I was also planning on removing the engine for clutch, cams and timing belt and was considering if I should go that step further as well. When stripping the motor I also noted that the timing belt was starting to brake up after 117km
Maybe someone else can recommend what sort of power a good condition gen3 could make. It wasn't from the power that damaged this engine
purple5ive Thanks. Most of the hard work is done till I put the motor back in.
Decided im going to weld up all the unused hols and remove all the nut on the firewall and respray the bay while the engine is out
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kameleon
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RE: DASIC1 SW20
2010/02/15 23:17:20
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caldina suits Melbourne:)
custom suits every other state imo.
so your going for a reasonably priced engine or full on priced engine? i think the pauters would be the expensive option.
if i were you id be doing eagles with cp off the shelf pistons for the 5sgte. means its all off the shelf and cheaper.
twin plate for sure too. singles are crap......
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dasic1
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RE: DASIC1 SW20
2010/02/15 23:28:55
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I just got a quote from WTF and its wow
The only reason I was thinking pauters was they come in the 5s size. but lots of people do run 3s rods without problems.
How much better would the caldina intake be than the gen3? Id be screwed anyway I think if they looked with or without a std manifold.
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robk
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RE: DASIC1 SW20
2010/02/15 23:55:12
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quote:
Originally posted by dasic1
robk Yeah its a gen3. It made 187.8rwkw @20 psi.
I was also planning on removing the engine for clutch, cams and timing belt and was considering if I should go that step further as well. When stripping the motor I also noted that the timing belt was starting to brake up after 117km
Maybe someone else can recommend what sort of power a good condition gen3 could make. It wasn't from the power that damaged this engine
Thanks for the info mate, mine's actually a Gen 2 though. When you say the power didn't do the damage, do you mean that the tuning was simply too careless and therefore too harmful to the engine?
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