SFI 25.2 Mustang/LSx build "The Renegade"
09-24-2008, 05:16 PM
#1189
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Before this last deal we were just over 30k. Shawn has the motor now and he'll be cordinating the parts and stuff so I can get working on my next house. We broke ground this week and the concrete guys are coming in next week. I'll be going between both projects for awhile but we're at a standstill with the motor until we get the new crank
How the hell did you keep it down that low?????
Last edited by OutlawZ; 09-24-2008 at 05:46 PM.
09-24-2008, 07:33 PM
#1192
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We talked to some people today and they said they had not seen any issues with the bottom end of the LSX block. LME said Worm Boy's crank/rods/bearings looked brand new every time they tore it down for inspection. TUFF who is running 8.30s said he had not even heard about the problems..
09-24-2008, 07:37 PM
#1193
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This is old news here. Just a re hash of previous stories that were going around months ago. We have seen these problems with other builds and have posted what we found to be the best soloutin to the problems.
I as well as others have shared what we found during the past year. The information is there if you really want it. It appears to me that you don't.
Robin
I as well as others have shared what we found during the past year. The information is there if you really want it. It appears to me that you don't.
Robin
The thing I want to know is this.. We are planning to go 427 inches with All Pro or ETP LS7 style heads with a carb, solid roller setup, the whole nine yards with 2 SpeedTech kits.. Probably gonna spin it to around 7500 rpms and make somewhere around 1200 flywheel hp..
CAN THE LSX BLOCK HANDLE IT?????????????????
09-24-2008, 08:36 PM
#1194
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09-24-2008, 08:41 PM
#1195
We talked to some people today and they said they had not seen any issues with the bottom end of the LSX block. LME said Worm Boy's crank/rods/bearings looked brand new every time they tore it down for inspection. TUFF who is running 8.30s said he had not even heard about the problems..
Trust me there have been failures that have not been made public. I tune the chassis on alot of the cars out there with LSX blocks. I get the feedback.
Phil is on futile mission in my opinion though.
09-24-2008, 08:54 PM
#1196
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We talked to some people today and they said they had not seen any issues with the bottom end of the LSX block. LME said Worm Boy's crank/rods/bearings looked brand new every time they tore it down for inspection. TUFF who is running 8.30s said he had not even heard about the problems..
09-24-2008, 09:07 PM
#1197
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Well Phil,this is exactly why i dont disclose info i find out-you always got 50 experts telling you that you are wrong.I say the block is perfect-let everybody figure out there own problems-or pay somebody to do it for them.
09-24-2008, 09:14 PM
#1198
Like Madman said Ill keep my BBC.
Ill never evey go back to any kind of SBC......
and yeah last I checked a lot of people use aluminum rods and other light parts with not problems as long as you replace them when need be.
If something seems to good to be true then......
Did they advertise 2500hp plus at 9,000RPM? Holding power is one thing, holding power and RPM is another.
There are guys with 540's and larger that are on the street that constantly worry about parts but when you have a sick .750 ish cam with a killer lobe profile stuff breaks but one of these runs on the street and is close to 8's all motor with a carb.
Honestly you are pushing something to the limit that has not been out for very long compared to other things.
Just because a company says this will last does not mean it will or will with all applications.
I can build a 1,000hp BBC and make it live for a long time at say 7,500 rpm (throwing out numbers) but at 9,000 rpm have all sorts of problems.
R&D gets expensive, its why I stick with proven parts that have been around forever.
Not falming you but like Madman said in other words I think you are fighting a battle that you can't win.... its racing.
Ill never evey go back to any kind of SBC......
and yeah last I checked a lot of people use aluminum rods and other light parts with not problems as long as you replace them when need be.
If something seems to good to be true then......
Well this week did not have a good ending. We along with a few others are starting to find the limitations of the LSx block. Shawn and I tore the block down and found some issues that may or may not be able to be fixed in an effort to be reliable @ 2500hp. We have talked to Andy Jensen and he seems to think that we're going to need to do a few custom parts to get the block to live @ 2500+hp and 9000rpm.
At this point we're trying to decide if we keep going with the LSx or switch to a 550+ CID Big Block. Honestly I really am questioning GM's advertising of 2500hp capable block, everyone that I have had look at it said no way no how.
At this point we're trying to decide if we keep going with the LSx or switch to a 550+ CID Big Block. Honestly I really am questioning GM's advertising of 2500hp capable block, everyone that I have had look at it said no way no how.
There are guys with 540's and larger that are on the street that constantly worry about parts but when you have a sick .750 ish cam with a killer lobe profile stuff breaks but one of these runs on the street and is close to 8's all motor with a carb.
Honestly you are pushing something to the limit that has not been out for very long compared to other things.
Just because a company says this will last does not mean it will or will with all applications.
I can build a 1,000hp BBC and make it live for a long time at say 7,500 rpm (throwing out numbers) but at 9,000 rpm have all sorts of problems.
R&D gets expensive, its why I stick with proven parts that have been around forever.
Not falming you but like Madman said in other words I think you are fighting a battle that you can't win.... its racing.
Last edited by JUICED96Z; 09-24-2008 at 09:27 PM.
09-25-2008, 06:58 AM
#1199
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I agree. I'm following this thread trying to learn something. I'm on the fence about LSX vs. BBC for my car, but all these "experts" come out of the woodwork. They are not contributing anything constructive, they are only questioning your abilities. I appreciate you guys trying to get to the bottom of a potential problem and share the info, but I don't blame you if you just keep it to yourselves.
09-25-2008, 09:14 AM
#1200
Shawn or myself will not debate any of these points here or anywhere else. At this point there has only been 1 or 2 people that have shared information like this in any public forum so I guess that makes our problem singled out. I can tell you this, I have talked to handful of people that have more LSx/LS2/LSwhatever experience than EVERYONE in this ******* thread combined.
If you "self-proclaimed-experts" think you have more experience than someone like Urban, Biggs, or Jensen, your in for a rude awakening. Actually thinking about it, you "self-proclaimed-experts" will never build a car of this caliber so its a moot point. Do your keyboard racing elsewhere.
If you "self-proclaimed-experts" think you have more experience than someone like Urban, Biggs, or Jensen, your in for a rude awakening. Actually thinking about it, you "self-proclaimed-experts" will never build a car of this caliber so its a moot point. Do your keyboard racing elsewhere.