Aftermarket Intakes
#2
Junior Member
Joined: Aug 2003
Posts: 86
Likes: 0
From: West Chester PA
Car: 88' Formula 350
Engine: 358 ci TPI
Transmission: Tremec T-56
If your looking at Holley Stealth Ram (HSR) I would suggest looking at Tuned Port Induction Specialties (TPiS) Mini Ram intake as well. It is a one piece design intake with drastically shorter intake runners, 3"-4" by comparison to GM's 11"-12" runner length, this will allow for higher rpm horse power, however there will be a drop in off the line torque, kind of a drag, but i like the sound of pulling hard all the way to 6500. on there engine development page they have a stock L-98 with unported aluminum vette heads and their ZZ-9 cam, fairly mild, that pulled 377.8hp at 5500 and 400.2 ft/lbs at 4500. the company claims something like 70 to 80 hp gain over stock TPI with mild mods cam and exhaust, and over 100 hp gain with better heads and a more aggressive cam. you do need the fuel rail kit to use the intake because the angle of the rail is different. manifold is around $800 plus 2 something for the rail and fuel line kit to make the install easy. will require a new PROM and some dyno tuning. if you have the money they offer a stand alone engine managment system with mini ram kit. basically kills 50 birds with one huge fu ck ing stone at $3700. When i get the money and finish building my current engine this system is what i am leaning twards. HSR does not clear the Firebirds hood so I am partial.
#4
Senior Member
Joined: Sep 2002
Posts: 848
Likes: 14
From: Nebraska
Car: '89 Formula
Engine: 355
Transmission: 700R4
Axle/Gears: 9 bolt
HSR does not clear the Firebirds hood so I am partial.
#5
Junior Member
Joined: Aug 2003
Posts: 86
Likes: 0
From: West Chester PA
Car: 88' Formula 350
Engine: 358 ci TPI
Transmission: Tremec T-56
when i said it did not clear, i meant without cutting. if i does not fit with out modification it does not fit....you have to make it fit. personally i would rather not modify my hood bracing, but that's just cause i'm a perfectionist. i'd rather have something that was designed to fit with no modification. just my $.02
#6
Senior Member
Joined: Sep 2002
Posts: 848
Likes: 14
From: Nebraska
Car: '89 Formula
Engine: 355
Transmission: 700R4
Axle/Gears: 9 bolt
if i does not fit with out modification it does not fit....you have to make it fit. personally i would rather not modify my hood bracing, but that's just cause i'm a perfectionist. i'd rather have something that was designed to fit with no modification.
#7
Supreme Member
Joined: Apr 2002
Posts: 1,148
Likes: 0
From: Faribault, Minnesota
Car: 1989 IROC-Z
Engine: LS1
Transmission: T56
1) TPiS Mini-ram
2) Holley Stealth-ram
3) Linginfelter super-ram
4) LT1 intake (Fits with modifications)
5) Accel super-ram base and high flow runners
6) TPiS Large mouth intake and Large mouth runners
7) Edlebrock intake with High flow runners
8) SLP Siameased runners (not sure if they make the lower intake or not)
9) Arizona Speed & marine siameased runners (not sure if they make the lower intake or not)
These are all of the optional intakes for the L98 I could think of...Which is best? Well that all depends on what u want outta the motor. U wanna just go fast then MINI Ram..u want Low end torque then TPIS Large mouth set-up. Lots of power for cheap HSR or LT1. And the all around set-up...Super ram.
Hope this helps!
Jason
2) Holley Stealth-ram
3) Linginfelter super-ram
4) LT1 intake (Fits with modifications)
5) Accel super-ram base and high flow runners
6) TPiS Large mouth intake and Large mouth runners
7) Edlebrock intake with High flow runners
8) SLP Siameased runners (not sure if they make the lower intake or not)
9) Arizona Speed & marine siameased runners (not sure if they make the lower intake or not)
These are all of the optional intakes for the L98 I could think of...Which is best? Well that all depends on what u want outta the motor. U wanna just go fast then MINI Ram..u want Low end torque then TPIS Large mouth set-up. Lots of power for cheap HSR or LT1. And the all around set-up...Super ram.
Hope this helps!
Jason
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#9
Junior Member
Joined: Feb 2003
Posts: 53
Likes: 0
From: Denmark/Indiana
Car: 1988 Trans AM Gta
Engine: 6.0 Liter TPI
Transmission: TH700r4
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