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| Don Kraus's 427 LSX Update (Page 24/28) |
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darkhorizon
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MAR 07, 11:01 AM
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You are not the first one to break that 4340 input shaft.
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Mr Ferrari
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APR 21, 11:36 AM
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Don Kraus
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MAY 04, 04:27 PM
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Just got it back on the road again.Running 3:29 gears now and needed a little help from PCS and Dan was great as always in programing the transaxle.Its just in time for the summer shows.
Don------------------
Too Far
60' - 1.491 sec
1/4 mi - 11.323 sec
mph - 116.40
 
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ClayTonto
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MAY 05, 08:00 PM
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Don, did you get the 1" GMR chain? [This message has been edited by ClayTonto (edited 05-05-2010).]
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Will-Martin
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MAY 06, 09:58 PM
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| quote | Originally posted by Don Kraus:
Yes,I was using the LS4 flexplate and it still looks good but with the carrier braking and the flexpate holding the converter alone with all the trama going on there I don't want to risk it.And this way I have a drag race approved flexplate for more safety.
Don
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Hey Don,
Why did your original setup fail?
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Don Kraus
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MAY 07, 03:52 PM
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I do have the 1" chain in it now,I had the 7/8's before and I also have the 300m input shaft.
The alainment of the transaxle and engine was off 40 thousands,so that broke the input shaft and then it tore up the converter and transaxle shaft.
Thats the only thing I didn't check because when the transaxles you don't have a good way to measure it.I had to learn the hard way.
Don------------------
Too Far
60' - 1.491 sec
1/4 mi - 11.323 sec
mph - 116.40
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fieroguru
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MAY 07, 05:19 PM
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| quote | Originally posted by Don Kraus:
The alainment of the transaxle and engine was off 40 thousands,so that broke the input shaft and then it tore up the converter and transaxle shaft.
Don
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So was it an issue with the adapter plate, or just something odd with the LSx block or tranny?
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Archie
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MAY 07, 08:35 PM
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| quote | Originally posted by Don Kraus:
The alainment of the transaxle and engine was off 40 thousands,.
Don
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Ouch!!!! , That's a lot.
Archie
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Don Kraus
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MAY 08, 10:56 AM
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Fieroguru,I think I was the victom of all three.Castings and hole borings are always a little different from one to another and then throw an adapter plate in there and if they all are a little off the same way you can get this.Thats why Lakewood makes offset guide pins to correct that.I'm within one thousands now just using their offset guide pins.I would warn anybody doing a swap like this that has a lot of horsepower and runs higher RPM's to be sure to take the time and check it.I didn't and it cost me.
Don------------------
Too Far
60' - 1.491 sec
1/4 mi - 11.323 sec
mph - 116.40
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AkursedX
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MAY 09, 10:44 PM
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I'm glad to hear it's back on the road. I'll be looking forward to some new 1/4 mile times! ------------------
'88 GT- 3800 Turbo 11.367@121.03mph
gmtuners.com -Build info
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