View Poll Results: Should I get the intake and TB for $350? (swapping old parts)
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Worth it to port LS6 intake?
11-14-2010, 04:50 PM
#1
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Worth it to port LS6 intake? A guy that lives not too far from me (Tampa, FL) does porting for LS-engine intakes. 
Basically I would go to him and swap my non-ported intake for a ported one and pay $250.
He has the same deal for a P&P TB for around $100.
I was thinking of just doing both for $350. I'm planning in the near future to add a cam and exhaust and get a tune. So I'd like to get this before the tune. But is it really worth paying $350?
I've heard of performance gains from porting the bigger FAST intakes, but I haven't heard much about porting the LS6.
I'd like to hear you guy's opinions.
Basically I would go to him and swap my non-ported intake for a ported one and pay $250.
He has the same deal for a P&P TB for around $100.
I was thinking of just doing both for $350. I'm planning in the near future to add a cam and exhaust and get a tune. So I'd like to get this before the tune. But is it really worth paying $350?
I've heard of performance gains from porting the bigger FAST intakes, but I haven't heard much about porting the LS6.
I'd like to hear you guy's opinions.
11-14-2010, 05:00 PM
#3
The gains per dollar would be horrible, lol. You won't notice a difference with the ported LS6 intake. The TB wouldn't be bad; I tried a ported and polished TB and it felt like it was a little snappier on the bottom-end. I'd get the TB ported and leave the LS6 alone.
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Homer_Simpson (10-18-2021)
11-14-2010, 06:08 PM
#6
In my opinion your best option would be to have TPIS modify your LS6 intake.
They add a 90mm opening. Then just get a Nick Williams 90mm TB. It's proven to meet or
beat a FAST 90/90 setup on a 427cid motor. So it flows more than enough for a 346cid
motor NA or FI. If you send in your intake they only cost $350.00.
I installed one on my buddies 2000 WS6 with H/C/headers, etc..and it made a big difference.
They add a 90mm opening. Then just get a Nick Williams 90mm TB. It's proven to meet or
beat a FAST 90/90 setup on a 427cid motor. So it flows more than enough for a 346cid
motor NA or FI. If you send in your intake they only cost $350.00.
I installed one on my buddies 2000 WS6 with H/C/headers, etc..and it made a big difference.
11-14-2010, 07:17 PM
#7
what intake do you have?ls1 or ls6?the port of the ls6 intake matches the head runner great,no need for port matching .the TB opening is good.you can get a polished TB for $70-80 from people on this forum,worth 7 hp.you can get a BBK or other ALUM intakes for $400 or less with a 85mm TB opening 3 bolt ,90mm or more is usually 4 bolt..whats your budget?
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11-14-2010, 08:37 PM
#9
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Dude... I'm a retard and I ported my own for a few bucks in a grinding wheel for my Dremel, a tube of fastweld and some different grit sandpaper. Save your money.
11-14-2010, 08:49 PM
#10
A ported FAST cost over $1,000 for what 12 peak hp? Who cares about peak numbers.
Again dyno numbers mean nothing. If you got the money. The modded LS6 TPIS intakes
works great cause the LS6 intake is an excellent design. So by just opening it up to
90mm meets or beats the FAST. TPIS and Lingenfelter both proved it. And for $350
you can't beat it. And either way you need the 90mm TB but look what you're saving over the FAST. You can buy a cam with the savings. And i know first hand that it works. Oh and you wont have to worry about leaks like some of the FAST did. And no
low end torque loss.
Again dyno numbers mean nothing. If you got the money. The modded LS6 TPIS intakes
works great cause the LS6 intake is an excellent design. So by just opening it up to
90mm meets or beats the FAST. TPIS and Lingenfelter both proved it. And for $350
you can't beat it. And either way you need the 90mm TB but look what you're saving over the FAST. You can buy a cam with the savings. And i know first hand that it works. Oh and you wont have to worry about leaks like some of the FAST did. And no
low end torque loss.
11-15-2010, 01:36 AM
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A ported FAST cost over $1,000 for what 12 peak hp? Who cares about peak numbers.
Again dyno numbers mean nothing. If you got the money. The modded LS6 TPIS intakes
works great cause the LS6 intake is an excellent design. So by just opening it up to
90mm meets or beats the FAST. TPIS and Lingenfelter both proved it. And for $350
you can't beat it. And either way you need the 90mm TB but look what you're saving over the FAST. You can buy a cam with the savings. And i know first hand that it works. Oh and you wont have to worry about leaks like some of the FAST did. And no
low end torque loss.
Again dyno numbers mean nothing. If you got the money. The modded LS6 TPIS intakes
works great cause the LS6 intake is an excellent design. So by just opening it up to
90mm meets or beats the FAST. TPIS and Lingenfelter both proved it. And for $350
you can't beat it. And either way you need the 90mm TB but look what you're saving over the FAST. You can buy a cam with the savings. And i know first hand that it works. Oh and you wont have to worry about leaks like some of the FAST did. And no
low end torque loss.
11-15-2010, 08:53 AM
#15
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11-15-2010, 09:39 AM
#16
FAST is going to be around 10hp over the ls6 on a near stock engine. The more is done (heads, cam) the more it's going to gain over the ls6.
What you say about the 90mm ls6 is almost true...they can almost match the fast on some applications. But it costs the same as he would have invested in the fast. I looked into it and it was cheaper for me to go with the deal I got on the fast. And the more I mod the more worth it my choice will be.
Buying a NEW fast intake is a ripoff for 90% of people's needs IMO, but with the price they go for used...they can become a good deal hp/dollar and you won't have to worry about upgrading later.
It's kind of like investing in 2.5"-3" true duals instead of a catback...you get better gains, the more you mod the better the gains become, and you don't have to worry about ever upgrading exhaust again.
11-15-2010, 10:10 AM
#17
A new FAST doesn't cost $500. I'm taking about the guy who wants a new one.
They are over $800 and over $1,000 to have it ported. I agree a new FAST is a rip off.
The HP to cost ratio isn't worth it. The money could be spent on best power making mods.
The LS6 intake has great plenum volume and great runner design. Thats why the TPIS
will match or out do the FAST intake. And no matter what amount of reasoning you do
the intake only cost $350 and they dont charge for shipping. All you need is a 90mm TB
And it ready to go. It's still good to tweak the tuning for max results. And like the FAST the TPIS LS6 intake will only get better with head, cam, and blowers, and they dont leak
under boost like the FAST has done cause they use seal cause of its 2 piece design.
On a street/strip setup the FAST is a waste of money. If you run a all out race car it might show some MPH but they dont lower ET's that much. And on boosted motors the FAST shows no gains.
They are over $800 and over $1,000 to have it ported. I agree a new FAST is a rip off.
The HP to cost ratio isn't worth it. The money could be spent on best power making mods.
The LS6 intake has great plenum volume and great runner design. Thats why the TPIS
will match or out do the FAST intake. And no matter what amount of reasoning you do
the intake only cost $350 and they dont charge for shipping. All you need is a 90mm TB
And it ready to go. It's still good to tweak the tuning for max results. And like the FAST the TPIS LS6 intake will only get better with head, cam, and blowers, and they dont leak
under boost like the FAST has done cause they use seal cause of its 2 piece design.
On a street/strip setup the FAST is a waste of money. If you run a all out race car it might show some MPH but they dont lower ET's that much. And on boosted motors the FAST shows no gains.
11-15-2010, 10:26 AM
#18
So dyno numbers mean nothing yet you are quoting them? Which one is it? They do or they don't mean anything? A Fast is a better intake then an LS6 period. As your engine requires more the Fast will shine more. On a stock or mildly modded application, the hp to $ ratio probably isn't the greatest, but it would leave room to grow in the future
I'm only quoting them since everyone seems to worry more about dyno numbers lately. On my WS6 i had no idea what it dynoed, and didn't care. All i knew was it was tuned in on the street( where we drive, not on a dyno) and my idle was perfect, my LTFT's where +1 to -2 at idle and cruise and locked to zero at 30 % throttle. And around 11.5's at WOT. If you read my earlier post i'm talking about the TPIS modified LS6 intake. And even a stock LS6 intake makes about the same except above 5,500 rpm. I dont drive around at 5,500 rpm. How much has the FAST lowered your ET's at the track? Most guys that keep their car intacted and in full weight run 224 cams and heads. If a FAST lowers your ET's by a tenth is that worth its cost? Not for me. I can buy a cam, springs and retainers for the cost of a new ported FAST. Bottom line a TPIS LS6 intake has shown gains at the track and the dyno for guys that only car about dyno numbers and its only $350 shipped. Thats a $650+ savings over a ported FAST for the same or better gains. Call TPIS or Lingenfelter if you dont believe me.
11-15-2010, 10:42 AM
#19
As I said, I'm talking about what used ones sell for on this site and others and that price versus what someone was going to charge him to port his ls6. For the price he quoted he would be within the range of buying a fast setup.
I've only seen 1 test of the TPIS intake on this site and that was from a magazine comparison. IIRC the fast 90 still outperformed both oval and round TPIS intakes by a hair.
Don't you have to furnish a core ls6 intake with them? I came from a ls1 intake so that was another $300+ to it's cost.
I've only seen 1 test of the TPIS intake on this site and that was from a magazine comparison. IIRC the fast 90 still outperformed both oval and round TPIS intakes by a hair.
Don't you have to furnish a core ls6 intake with them? I came from a ls1 intake so that was another $300+ to it's cost.
11-15-2010, 11:23 AM
#20
I agree the FAST and TPIS are close. But the LS6 doesn't have the low end tq lose.
And for $350 your getting an excellent intake that will never leak and you can use it
for boost without any leaking. And there's cases of FAST intake cracking as well. I know i wouldn't take the chance for the cost. And there's alot that go boost after they get bored of their heads and cam. My buddies 2000 WS6 had a TPIS on it that i installed and i retuned his car and he gain 2 tenths and alittle over 2 mph at the track. Dont know what it dynoed cause i tuned it on the highway. They charge a $500 core charge. But if you're removing the heads you can send in the intake
and not get the core charge. So please tell me what you gained with your FAST.
Did you lower your ET's? I dont care to hear dyno garbage cause any dyno can be
rigged to show a gain by just messing with the weather station. Thats why i dont put stock in dyno's. There only good for getting A/F tuned in.
And for $350 your getting an excellent intake that will never leak and you can use it
for boost without any leaking. And there's cases of FAST intake cracking as well. I know i wouldn't take the chance for the cost. And there's alot that go boost after they get bored of their heads and cam. My buddies 2000 WS6 had a TPIS on it that i installed and i retuned his car and he gain 2 tenths and alittle over 2 mph at the track. Dont know what it dynoed cause i tuned it on the highway. They charge a $500 core charge. But if you're removing the heads you can send in the intake
and not get the core charge. So please tell me what you gained with your FAST.
Did you lower your ET's? I dont care to hear dyno garbage cause any dyno can be
rigged to show a gain by just messing with the weather station. Thats why i dont put stock in dyno's. There only good for getting A/F tuned in.