SR base or upper?
Team Owner
Joined: Sep 2001
Posts: 62,067
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
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Re: (want2drivemy85)
As far as HP, the upper.
If you want it to be easier when you install everything, get the base first.
It'll still add power and raise the power band.
If you want it to be easier when you install everything, get the base first.
It'll still add power and raise the power band.
Team Owner
Joined: Mar 2000
Posts: 83,381
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From: Boston, MA
Does the base also increase redline?
Thread Starter
Pro
Joined: Jan 2003
Posts: 567
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From: Oswego Illinois
Re: (scorp508)
Let me think here if I buy the base then the upper I would have to un/Install the plenum/runners twice. And If buy the upper/runners then the base I would also have to un/install the upper/runners twice.
Well, the plenum and runners are the bigger restriction, but also easier to get off. I think I would do the base first just so I didn't have to do the plenum/runner job twice.
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Team Owner
Joined: Mar 2000
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From: Boston, MA
Re: (vetteguy216)
Let me think here if I buy the base then the upper I would have to un/Install the plenum/runners twice. And If buy the upper/runners then the base I would also have to un/install the upper/runners twice.
Drifting
Joined: Nov 2000
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From: Las Vegas Nevada
Re: SR base or upper? (vetteguy216)
Doesnt sound as "cool" but why not buy one and let it sit on the shelf for a short while untill you get the other one, that way you can only dive in once.
I got a complete, fully ported superram sitting on the shelf in the garage waiting untill I get my car driving as it is, and get I get the heads that match.
Just my 2cents
Matt
I got a complete, fully ported superram sitting on the shelf in the garage waiting untill I get my car driving as it is, and get I get the heads that match.
Just my 2cents
Matt
Safety Car
Joined: Apr 1999
Posts: 4,623
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From: Ohio
Re: (vetteguy216)
Ok, now think about your question for a moment. You are talking about opening THE restriction in an L98 motor by improving the intake system. This is a GOOD thing. Headers (esp. 1 3/4" Supercomps) on a stock intake L98 are next to worthless. It will reduce your bottom end somewhat and not be able to raise the rev range because you can't get enough air INTO the motor. I went through the Supercomp installation/blood letting only to find that I did gain ~250 RPMs up top, at the expense of a little bottom end. I had the Accell base and large tube runners at that time. Now SR with a stroker and big cam. BIG difference.
IMO, save your $$$ for the whole SR intake. If you can't swallow the whole thing, you will get some gain from the base and porting the stock plenum. As Scorp stated, you will not have to go through the SR install twice.
[Modified by h rocks, 5:42 PM 2/17/2003]
IMO, save your $$$ for the whole SR intake. If you can't swallow the whole thing, you will get some gain from the base and porting the stock plenum. As Scorp stated, you will not have to go through the SR install twice.
[Modified by h rocks, 5:42 PM 2/17/2003]