Quick Question: Bigger TB or injectors needed for a head swap?
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Hell there was a guy who made 430rwhp on a stock cam with ported heads on his ls1 gto a couple years ago.
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10k budget---forget building one
https://ls1tech.com/forums/vehicle-c...ded-10-5k.html
https://ls1tech.com/forums/vehicle-c...ded-10-5k.html
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Any thoughts on rotating assembly? Given that I want to run on pump gas (93 octane is plentiful around here) and leaning more towards ported stock AI heads: RamAirTA95 or anyone know what the inlet valve closes ABDC is for the AI cam he mentions previously (237/242, .604"/.598")? Was trying to see what the DCR would be on an 11.8:1 CR rotating assembly.
Should I stick with the stock oil pump and use and get a white spring?
I am guessing I should also swap the oil pump driveshaft and gear as well.
Any other considerations I should make?
#25
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I like the way you think, but I already have everything built except the motor. ![Nod](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_nod.gif)
Any thoughts on rotating assembly? Given that I want to run on pump gas (93 octane is plentiful around here) and leaning more towards ported stock AI heads: RamAirTA95 or anyone know what the inlet valve closes ABDC is for the AI cam he mentions previously (237/242, .604"/.598")? Was trying to see what the DCR would be on an 11.8:1 CR rotating assembly.
Should I stick with the stock oil pump and use and get a white spring?
I am guessing I should also swap the oil pump driveshaft and gear as well.
Any other considerations I should make?
![Nod](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_nod.gif)
Any thoughts on rotating assembly? Given that I want to run on pump gas (93 octane is plentiful around here) and leaning more towards ported stock AI heads: RamAirTA95 or anyone know what the inlet valve closes ABDC is for the AI cam he mentions previously (237/242, .604"/.598")? Was trying to see what the DCR would be on an 11.8:1 CR rotating assembly.
Should I stick with the stock oil pump and use and get a white spring?
I am guessing I should also swap the oil pump driveshaft and gear as well.
Any other considerations I should make?
Can't find my cam card to find the ABDC, but whatever it is there's no problem with my combo with running 93 octane. It's all in the tune so no sweat there.
Stock oil pump with a white spring would be fine, but I'm a fan of the Melling 10554. It's a more robust casting, high pressure standard volume. Fortunately it comes with a new hardened oil pump driveshaft that eliminated the plastic coupler.
#26
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Ported heads and a stock cam work fine. I have no idea where the idea that there would be no gains came from. I guess chevy was stupid going from ls1 heads to ls6 heads and now LS3 heads.
Hell there was a guy who made 430rwhp on a stock cam with ported heads on his ls1 gto a couple years ago.
Hell there was a guy who made 430rwhp on a stock cam with ported heads on his ls1 gto a couple years ago.
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The rotating assembly is something most people can agree on. Just avoid anything cast - forge everything. I am personally using a forged Ohio crank, forged Scat 6" rods and forged JE pistons.
Can't find my cam card to find the ABDC, but whatever it is there's no problem with my combo with running 93 octane. It's all in the tune so no sweat there.
Stock oil pump with a white spring would be fine, but I'm a fan of the Melling 10554. It's a more robust casting, high pressure standard volume. Fortunately it comes with a new hardened oil pump driveshaft that eliminated the plastic coupler.
Can't find my cam card to find the ABDC, but whatever it is there's no problem with my combo with running 93 octane. It's all in the tune so no sweat there.
Stock oil pump with a white spring would be fine, but I'm a fan of the Melling 10554. It's a more robust casting, high pressure standard volume. Fortunately it comes with a new hardened oil pump driveshaft that eliminated the plastic coupler.
Do I need the composite gear and drive I guess is what I am asking. Here is an image I found on here:
http://i1110.photobucket.com/albums/...T1parts014.jpg
Did you go with a different oil pan and anything else like a crank scraper?
What is everyone's take on a fully balanced kit (Crank, rods, pistons, rings and bearings) or should I pick specific stuff and get it balanced? Probably has to be rebalanced anyway with the flywheel, but I thought I would ask.
What about an ATI or a Fluiddampr?
#28
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More questions I know:
Do I need the composite gear and drive I guess is what I am asking. Here is an image I found on here:
http://i1110.photobucket.com/albums/...T1parts014.jpg
Did you go with a different oil pan and anything else like a crank scraper?
What is everyone's take on a fully balanced kit (Crank, rods, pistons, rings and bearings) or should I pick specific stuff and get it balanced? Probably has to be rebalanced anyway with the flywheel, but I thought I would ask.
What about an ATI or a Fluiddampr?
Do I need the composite gear and drive I guess is what I am asking. Here is an image I found on here:
http://i1110.photobucket.com/albums/...T1parts014.jpg
Did you go with a different oil pan and anything else like a crank scraper?
What is everyone's take on a fully balanced kit (Crank, rods, pistons, rings and bearings) or should I pick specific stuff and get it balanced? Probably has to be rebalanced anyway with the flywheel, but I thought I would ask.
What about an ATI or a Fluiddampr?
AI provides each cam with an Everwear drive gear.
I used the Canton 242T oil pan. Nothing fancy.
I like to piece together a kit and have the machine shop do the balancing. That way all your eggs are in one basket.
I used an ATI balancer, but the Fluiddampr will work just fine as well.
I am still not totally convinced that porting stock heads on an otherwise stock engine will provide the same horsepower as a mild cam on a stock engine. You simply just don't see it happen.
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The link you provided is broken.
AI provides each cam with an Everwear drive gear.
I used the Canton 242T oil pan. Nothing fancy.
I like to piece together a kit and have the machine shop do the balancing. That way all your eggs are in one basket.
I used an ATI balancer, but the Fluiddampr will work just fine as well.
I am still not totally convinced that porting stock heads on an otherwise stock engine will provide the same horsepower as a mild cam on a stock engine. You simply just don't see it happen.
AI provides each cam with an Everwear drive gear.
I used the Canton 242T oil pan. Nothing fancy.
I like to piece together a kit and have the machine shop do the balancing. That way all your eggs are in one basket.
I used an ATI balancer, but the Fluiddampr will work just fine as well.
I am still not totally convinced that porting stock heads on an otherwise stock engine will provide the same horsepower as a mild cam on a stock engine. You simply just don't see it happen.
![Nod](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_nod.gif)