Which FAST Intake/TB for Heads/Cam LS1?
Thread Starter
Launching!
Joined: Jul 2013
Posts: 280
Likes: 1
From: Las Cruces, NM
Which FAST Intake/TB for Heads/Cam LS1? I'm trying to go all out on my LS1. Just rebuilt it with a 227/235 cam. Got some 241 heads I'm going to send to AI to get worked on. Just ordered a SLP underdrive pulley,1 7/8 coated Longtube Headers, Seimans 80lb injectors(boosting it after get tired of n/a),and I'm wondering which Intake/tb combo i should go with? any suggestions? And should i get a bigger MAF?
Last edited by 91ls1silverado; Aug 4, 2014 at 07:26 PM.
Thread Starter
Launching!
Joined: Jul 2013
Posts: 280
Likes: 1
From: Las Cruces, NM
I'm not gonna boost it soon, going to be N/A for a long time til i save up for the turbo goodies... I want to get the best of the ls1 N/A for now...
Thread Starter
Launching!
Joined: Jul 2013
Posts: 280
Likes: 1
From: Las Cruces, NM
I want the 102 but I've seen forums and people keep saying its too much for the ls1...if i get the 102 intake, is the 102 throttle body to big? Should i stick to a 92mm throttle body?
I did the 92mm so I didn't have to mess around with the fuel rails and such. It was a last min thing at the time. Also decided to upgrade everything along with it. 92mm tb, smooth bellow, 85mm maf and 98mm lid. I have no regrets with the 92mm but go 102mm if you can.
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Launching!
Joined: Jul 2013
Posts: 280
Likes: 1
From: Las Cruces, NM
Alright cool thanks guys! I already did my research on which fuel rail to go with... Heres the link, http://www.hawksthirdgenparts.com/pr...B47%7DLS6.html
Hopefully it works
Hopefully it works
Its just an LS2 fuel rail pick one up in the Classifieds and get these spacers depending on the length of the injectors, saves some money.
http://www.ebay.com/itm/CBM-10837-Bottom-o-ring-Injector-Manifold-Spacing-Kit-LS1-LS2-LS3-LS7-/221341983162?pt=Motors_Car_Truck_Parts_Accessories&hash=item338902a1ba&vxp=mtr
http://www.ebay.com/itm/CBM-10837-Bottom-o-ring-Injector-Manifold-Spacing-Kit-LS1-LS2-LS3-LS7-/221341983162?pt=Motors_Car_Truck_Parts_Accessories&hash=item338902a1ba&vxp=mtr
The fast 102 is definitely not too much for the LS1. I'm making 464 rwhp with a mamo ported 102 with budget heads and a baby cam. As for the throttle body most tuners will tell you a 90/92mm is easier to tune than the 102mm.
I have ported numerous fast 90s 92s and 102s. The 102 is by far a better design and a lot less work to get the manifold ready to run. The fast 102 is better for boost as well. In a setup like this I would do a 85mm MAF or do a 100mm put together with an ls7 cartridge. The 102mm throttle body can be tuned if people say it can't be tuned they just don't want to spend the time tuning your car.