L98 power
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Joined: Feb 2000
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From: Austin Texas
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Joined: May 2011
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From: Cape May NJ
Ok so went to my local track last night to get some baseline runs and i'm pretty happy. Car is bone stock besides a TB aerofoil thingy and a K&n filter. Its got brand new falken 452 tires on buzzsaw's and i ran them at 25psi
it went 13.81@99 and it 60' consistently in the 1.8's which is what surprised me the most. dead hooked from a 4k launch.
how does that time stack up against the average?
it went 13.81@99 and it 60' consistently in the 1.8's which is what surprised me the most. dead hooked from a 4k launch.
how does that time stack up against the average?
Safety Car
Joined: Aug 2008
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From: San Marcos CA
That's in the ballpark of what a stockish 6-spd LT1 car will run. 100 mph in a 3300 lb car is probably at least 300hp.
from my experience, TPI is well suited for the 5 liter (305) engine, but the 350's have such ahard time with it. a votech'd 5.0 with the usual bolt on's actually pulls pretty hard, but only F-Bodies had that engine.
from my experience, TPI is well suited for the 5 liter (305) engine, but the 350's have such ahard time with it. a votech'd 5.0 with the usual bolt on's actually pulls pretty hard, but only F-Bodies had that engine.
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Joined: Nov 2003
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From: Overland Park Kansas
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TPIS used to charge $1100ish with larger valves but I can't find a damn thing on their website anymore. (The new site sucks IMO.) Their CNC port job showed numbers pretty close AFR180s. Under a TPI, I'd have to think you be hard-pressed to tell the difference. Or, you could ask for the original valve size and lose 10-20hp with a couple hundred savings. (Call for pricing).
There is a local guy in KC who also has a good rep for porting. Hist price with $800 with new (stock) valves a couple years ago.
I'd advise the Red88 to check around on this subject. Buying new heads for a TPI application isn't as beneficial as for a MR application. If a short-runner intake is selected,,,then yeah.
Race Director
Joined: Nov 2003
Posts: 12,220
Likes: 446
From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
C4 of Year Winner (appearance mods) 2019
FWIW, make sure there's no chance that your airfoil -- and especially mounting screw -- can vibrate loose. The results could be devastating.
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Joined: May 2011
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From: Cape May NJ
Thanks!, and yea I can imagine, for that reason i opted to go with the larger plastic one thats basically help on by some clips and the intake tube itself.. no way that sucker is falling in. and by the looks of it it makes a smoother flow then the little guy as well but i'm no aerodynamic engineer..
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Joined: Jul 2004
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From: Hartford WI
Last time I got a quote, LE charged about half that. But a couple of negative posts lately on that subject.
TPIS used to charge $1100ish with larger valves but I can't find a damn thing on their website anymore. (The new site sucks IMO.) Their CNC port job showed numbers pretty close AFR180s. Under a TPI, I'd have to think you be hard-pressed to tell the difference. Or, you could ask for the original valve size and lose 10-20hp with a couple hundred savings. (Call for pricing).
TPIS used to charge $1100ish with larger valves but I can't find a damn thing on their website anymore. (The new site sucks IMO.) Their CNC port job showed numbers pretty close AFR180s. Under a TPI, I'd have to think you be hard-pressed to tell the difference. Or, you could ask for the original valve size and lose 10-20hp with a couple hundred savings. (Call for pricing).
I don't know. Maybe he can go with a larger head WITHOUT porting so that it will equal the AFR 180 and then when he decides to, port them for even more benefit? Just a thought. That might give him some room to grow instead of growing out faster.
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Joined: Jul 2004
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From: Hartford WI
Team Owner
Joined: Jul 2004
Posts: 28,360
Likes: 3,253
From: Hartford WI
Thanks!, and yea I can imagine, for that reason i opted to go with the larger plastic one thats basically help on by some clips and the intake tube itself.. no way that sucker is falling in. and by the looks of it it makes a smoother flow then the little guy as well but i'm no aerodynamic engineer..
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Joined: May 2011
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From: Cape May NJ
you can deliver that ls1 to 37 country village 08210
probably doesn't do crap but hey, i bought it when i was like 17 and didn't really know anything...
but ide be willing to bet that if either option did work the one I got would be better...
but ide be willing to bet that if either option did work the one I got would be better...
Safety Car
Joined: Feb 2000
Posts: 4,564
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From: Austin Texas
Last time I got a quote, LE charged about half that. But a couple of negative posts lately on that subject.
TPIS used to charge $1100ish with larger valves but I can't find a damn thing on their website anymore. (The new site sucks IMO.) Their CNC port job showed numbers pretty close AFR180s. Under a TPI, I'd have to think you be hard-pressed to tell the difference. Or, you could ask for the original valve size and lose 10-20hp with a couple hundred savings. (Call for pricing).
There is a local guy in KC who also has a good rep for porting. Hist price with $800 with new (stock) valves a couple years ago.
I'd advise the Red88 to check around on this subject. Buying new heads for a TPI application isn't as beneficial as for a MR application. If a short-runner intake is selected,,,then yeah.
TPIS used to charge $1100ish with larger valves but I can't find a damn thing on their website anymore. (The new site sucks IMO.) Their CNC port job showed numbers pretty close AFR180s. Under a TPI, I'd have to think you be hard-pressed to tell the difference. Or, you could ask for the original valve size and lose 10-20hp with a couple hundred savings. (Call for pricing).
There is a local guy in KC who also has a good rep for porting. Hist price with $800 with new (stock) valves a couple years ago.
I'd advise the Red88 to check around on this subject. Buying new heads for a TPI application isn't as beneficial as for a MR application. If a short-runner intake is selected,,,then yeah.
I'm sure prices have come down a bit...
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Joined: Jul 2004
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From: Hartford WI
The theory is nice and it might even work on some highly specific car with some weird circumstances but if nobody has been able to get it to make power, save the manufacturer, I'd put it in the category of "snake oil" like most of the additives I see people use.
Maybe but if it doesn't work, all you are doing is increasing the risk for no gain. When I have increased risk, like say if I modify the motor for more power, I must have gain and be able to see it on a dyno.
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Joined: Jul 2004
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From: Hartford WI
Team Owner
Joined: Jul 2004
Posts: 28,360
Likes: 3,253
From: Hartford WI
Team Owner
Joined: Jul 2004
Posts: 28,360
Likes: 3,253
From: Hartford WI
Absolutely. However, you want to buy the best solution and not bits and pieces. Obviously TPIS is going to tell you that their headers are the best or their Miniram works the best. They make the damn thing and want to make money on it. Find someone you are comfortable with and get an intake system from the TB to the heads. Explain what your goals are and ask them to give you room for growth. In my case, Hitech recommended the TIPS headers which they don't sell for my application and the HSR. Only thing they sold me was the cam and the dyno tune. I reused my AFR heads and got 8 1.6RR rockers and 8 1.5 RR from Summit so I don't see a conflict of interest.