Fast 90 and LS2 results
Thread Starter
Burning Brakes
Joined: Jan 2008
Posts: 1,005
Likes: 1
From: springfield MO
Fast 90 and LS2 results
Ok so for most of you who have been following my dyno results, I got the Fast 90 and ported LS2 TB tested.
Car picked up 8rwhp and 8lbs but the gains started at about 4000rpm, Ill try and get a dyno graph posted up next week.
Final numbers were like 389/387
This is a full bolt on LS1 with shorty headers instead of LTs and stage 2.5 PRC 5.3 heads, on a STOCK 2000 cam.
So I guess its safe to say that a fast intake is more valuable on a LS engine that has a bigger cam in it.
Atleast this will give you guys that dont have cam or heads that a fast is not worth the money until it is your last bolt on mod
Car picked up 8rwhp and 8lbs but the gains started at about 4000rpm, Ill try and get a dyno graph posted up next week.
Final numbers were like 389/387
This is a full bolt on LS1 with shorty headers instead of LTs and stage 2.5 PRC 5.3 heads, on a STOCK 2000 cam.
So I guess its safe to say that a fast intake is more valuable on a LS engine that has a bigger cam in it.
Atleast this will give you guys that dont have cam or heads that a fast is not worth the money until it is your last bolt on mod
Thread Starter
Burning Brakes
Joined: Jan 2008
Posts: 1,005
Likes: 1
From: springfield MO
AMP Racing
Joined: Aug 2006
Posts: 10,757
Likes: 589
From: Washington TWP NJ
2023 C5 of the Year Finalist - Modified
2017 C5 of Year Finalist
St. Jude Donor '09-'10-'11-'12
On his way to a finished product. This is good info.
It might be a waste of money for someone to just add a fast 90/90 to a stock engine, but this is not the case here.
I'm looking forward to the new numbers with the cam install.
Le Mans Master
Joined: Aug 2007
Posts: 6,475
Likes: 297
From: Orange Park FL
I wouldn't say that at all. He's adding parts and taking notice of the gains as he goes.
On his way to a finished product. This is good info.
It might be a waste of money for someone to just add a fast 90/90 to a stock engine, but this is not the case here.
I'm looking forward to the new numbers with the cam install.
On his way to a finished product. This is good info.
It might be a waste of money for someone to just add a fast 90/90 to a stock engine, but this is not the case here.
I'm looking forward to the new numbers with the cam install.
It will be interesting since a lot of us do every thing all at once and don't really know single item results for sure.
Thread Starter
Burning Brakes
Joined: Jan 2008
Posts: 1,005
Likes: 1
From: springfield MO
I could've done everything at once I guess but it really isn't costing me much more to do it this way. In fact its allowed me to pick up a used fast, used ported ls2 tb and other stuff.
This is also why I went backwards with doing heads instead of a cam first. I just wanted people to see what it would do for their cars since there isn't a lot of data on doing it this way.
I was going to not do headers until after the cam but Im going to go ahead and replace my shorties with some LTs and see what it does.
I just replaced my 75mm MAF with an 85. Havent taken it out yet but I need to get the new maf tables loaded.
I won't be dynoing this one mod but from 3 other threads I found on less modded LS1s the bigger MAF gained 4rwhp on all of them.
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Thread Starter
Burning Brakes
Joined: Jan 2008
Posts: 1,005
Likes: 1
From: springfield MO
If I were to do it over again I would've spent the extra $200 for the ported LS6 heads instead of the 5.3 just for that extra 10rwhp that they seem to do over the 5.3
Drifting
Joined: Oct 2011
Posts: 1,980
Likes: 10
From: Crook County
