8 sec. LS turbo engine buildup
#1
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I thought it would be cool to build a LS1tech motor with help and insite from it's 7, 8 and 9 second members. I tried a search and didn't find anything like this... SO...
I just got back from PRI and I'm amazed at all the cool stuff that's coming out for the LS series motors. I have decided to take out the 427CI BBC in my 70 Chevelle and build up a turboed LS motor. I would like to build a "best bang for the buck" motor that uses as much factory stuff available, as long as it will support 1000+/- hp. This is a street car with 3.73's, T400 and full weight that will have fuel injection and A/C. I would like to avoid the LSX stuff for price reasons and I'm thinking gen 4 stuff. I have most of this figured out on paper but was looking for validation. If I'm way off on my theories then let me know why. I will try and ask only a few questions at a time until it's all down on paper.
Now for the questions:
What block would be best? (iron or alum)
What stroke and rod combo will be best for a 4" bore, keeping the piston compression height in mind? What brand?
What heads would be best? (LS3, L92, other or aftermarket)
I just got back from PRI and I'm amazed at all the cool stuff that's coming out for the LS series motors. I have decided to take out the 427CI BBC in my 70 Chevelle and build up a turboed LS motor. I would like to build a "best bang for the buck" motor that uses as much factory stuff available, as long as it will support 1000+/- hp. This is a street car with 3.73's, T400 and full weight that will have fuel injection and A/C. I would like to avoid the LSX stuff for price reasons and I'm thinking gen 4 stuff. I have most of this figured out on paper but was looking for validation. If I'm way off on my theories then let me know why. I will try and ask only a few questions at a time until it's all down on paper.
Now for the questions:
What block would be best? (iron or alum)
What stroke and rod combo will be best for a 4" bore, keeping the piston compression height in mind? What brand?
What heads would be best? (LS3, L92, other or aftermarket)
Last edited by tt69camaro; 12-16-2008 at 07:54 PM.
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i would go with a lq9. you can get a forged short block for about 3500bucks. and i think if you are shooting for 1000hp i would go with an iron block (an lq9 is iron)
good luck with your build.
good luck with your build.
#5
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I thought it would be cool to build a LS1tech motor with help and insite from it's 7, 8 and 9 second members. I tried a search and didn't find anything like this... SO...
I just got back from PRI and I'm amazed at all the cool stuff that's coming out for the LS series motors. I have decided to take out the 427CI BBC in my 70 Chevelle and build up a turboed LS motor. I would like to build a "best bang for the buck" motor that uses as much factory stuff available, as long as it will support 1000+/- hp. This is a street car with 3.73's, T400 and full weight that will have fuel injection and A/C. I would like to avoid the LSX stuff for price reasons and I'm thinking gen 4 stuff. I have most of this figured out on paper but was looking for validation. If I'm way off on my theories then let me know why. I will try and ask only a few questions at a time until it's all down on paper.
Now for the questions:
What block would be best? (iron or alum)
What stroke and rod combo will be best for a 4" bore, keeping the piston compression height in mind? What brand?
What heads would be best? (LS3, L92, other or aftermarket)
I just got back from PRI and I'm amazed at all the cool stuff that's coming out for the LS series motors. I have decided to take out the 427CI BBC in my 70 Chevelle and build up a turboed LS motor. I would like to build a "best bang for the buck" motor that uses as much factory stuff available, as long as it will support 1000+/- hp. This is a street car with 3.73's, T400 and full weight that will have fuel injection and A/C. I would like to avoid the LSX stuff for price reasons and I'm thinking gen 4 stuff. I have most of this figured out on paper but was looking for validation. If I'm way off on my theories then let me know why. I will try and ask only a few questions at a time until it's all down on paper.
Now for the questions:
What block would be best? (iron or alum)
What stroke and rod combo will be best for a 4" bore, keeping the piston compression height in mind? What brand?
What heads would be best? (LS3, L92, other or aftermarket)
#7
Staging Lane
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I have a 509ci w/twin 4788's that will make over 2000hp. That is my limited mileage Pro Street car.
This is my unlimited mileage street car, I won't have a problem making 1000hp. It's not hard to do when you pick the right parts.
I haven't found the LQ9 short block in the GM book. Is that similar to the LS9? It sounds like something I want to look into.
This is my unlimited mileage street car, I won't have a problem making 1000hp. It's not hard to do when you pick the right parts.
I haven't found the LQ9 short block in the GM book. Is that similar to the LS9? It sounds like something I want to look into.
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I have a 509ci w/twin 4788's that will make over 2000hp. That is my limited mileage Pro Street car.
This is my unlimited mileage street car, I won't have a problem making 1000hp. It's not hard to do when you pick the right parts.
I haven't found the LQ9 short block in the GM book. Is that similar to the LS9? It sounds like something I want to look into.
This is my unlimited mileage street car, I won't have a problem making 1000hp. It's not hard to do when you pick the right parts.
I haven't found the LQ9 short block in the GM book. Is that similar to the LS9? It sounds like something I want to look into.
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I have a 509ci w/twin 4788's that will make over 2000hp. That is my limited mileage Pro Street car.
This is my unlimited mileage street car, I won't have a problem making 1000hp. It's not hard to do when you pick the right parts.
I haven't found the LQ9 short block in the GM book. Is that similar to the LS9? It sounds like something I want to look into.
This is my unlimited mileage street car, I won't have a problem making 1000hp. It's not hard to do when you pick the right parts.
I haven't found the LQ9 short block in the GM book. Is that similar to the LS9? It sounds like something I want to look into.
http://www.speedinc.com/enginepackages.cfm
i think they are a sponsor, if not i apologize for posting links
#14
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we did 8's with a simple 6L iron block, 408ci, hand ported 241 heads, 1/2 head studs... made around 1200 flywheel HP with 2x 66mm turbos..
will be aiming for 7's with the same setup
will be aiming for 7's with the same setup
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So if an iron block is superior to factory aluminum in my application then, is there any prep work that needs to be done to it besides the usual machining?