Engine Dyno Testing LS3 Intakes INSIDE!!
I will be putting on a Fast 102 and 102 tb in a week or 2 to replace a Jeremy F ported LS3 intake and Fast 92 tb on my 427 w/PRC L92 heads. The results will be seen at the dragstrip not a dyno because I dragrace! I'm hoping to pick up about .15 sec in the 1/8 mile.
Teching In
Joined: Sep 2009
Posts: 44
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Staging Lane
Joined: Aug 2009
Posts: 65
Likes: 1
From: Snohomish, WA
so the LS3 engines have a bigger MAF than the LS2's. Didn't know that: will the LS3 bolt into a LS2, plug n play style? I am loath to deal with an aftermarket MAF when they are such a sensitive item and the OEM's put such effort into making them-- no aftermarket company seems to have gotten it right yet with all the claims of guys switching back to stock just to get there A/F ratios correct.
There just isnt enough results yet to prove this intake is worth the $$.
Im sure quite a few of us will keep our eye's on this.. so far its not looking good.
Kyle
Just thought I would throw this out there Hey Guys,
Don't want to hijack this, but I thought you all would like to see these results.
The bigger everywhere lines are the L92 truck manifold, the lower lines are a stock LS3!!!!
Talk about dissapointing. These are on a 427 with LS3 heads and a 230/240 cam. This is all through a 85mm descreened truck MAF.
I did notice that the truck intake was pegging the MAF sensor starting at 5800, the car manifold only did it above 6200!!!!
Don't want to hijack this, but I thought you all would like to see these results.
The bigger everywhere lines are the L92 truck manifold, the lower lines are a stock LS3!!!!
Talk about dissapointing. These are on a 427 with LS3 heads and a 230/240 cam. This is all through a 85mm descreened truck MAF.
I did notice that the truck intake was pegging the MAF sensor starting at 5800, the car manifold only did it above 6200!!!!
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So how do the carb style EFI single plane manifolds compaire with the elbows on them to these plastic style manifolds? Like the Edelbroke Vic manifolds or the GMPP manifolds? Does anyone have any back to back dyno results to compaire these to the stock style LS3 manifolds?
So how do the carb style EFI single plane manifolds compaire with the elbows on them to these plastic style manifolds? Like the Edelbroke Vic manifolds or the GMPP manifolds? Does anyone have any back to back dyno results to compaire these to the stock style LS3 manifolds?
We have a sprint car coming to do some chassis dyno testing. I will try all of these out on it. That way, I know if it truly makes a difference or not.
So how do the carb style EFI single plane manifolds compaire with the elbows on them to these plastic style manifolds? Like the Edelbroke Vic manifolds or the GMPP manifolds? Does anyone have any back to back dyno results to compaire these to the stock style LS3 manifolds?
https://ls1tech.com/forums/attachmen...-460-dyno2.jpg
I can hardly make out the dyno but it looks like it is much better up top with a little lose down low. Can you give any number differences in HP and Torque? I can not realy see well enough to tell.