C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Bye Bye TPI

Thread Tools
 
Search this Thread
 
Old Sep 21, 2012 | 05:45 AM
  #1  
Midnight 85's Avatar
Midnight 85
Thread Starter
Le Mans Master
15 Year Member
 
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
Default Bye Bye TPI

I'm just getting started on my intake change project. This intake is not seen very often and I think it may be worth a shot. It is the Edelbrock Pro Flo XT and I really liked the look of it so it was my choice. If it performs as good as it looks, (IMO) then it will be worth every penny of it's $439. price tag. This is just for the manifold, the throttle body and fuel rails are extra but I have just over $800. in all three pieces which is usually what a used superram goes for plus, Vette magazine did a test on it and got 20 more hp over the superram. Here are some pics of it as I just put it on.
[IMG][/IMG]

[IMG][/IMG]

[IMG][/IMG]
Reply
Old Sep 21, 2012 | 05:47 AM
  #2  
Dynamo6969's Avatar
Dynamo6969
Advanced
 
Joined: Aug 2011
Posts: 80
Likes: 0
Default

god that is beautiful! let us know if you have any hood clearance issues, im looking in to this for my '89 (or HSR or miniram)

cant wait for some results!
Reply
Old Sep 21, 2012 | 08:01 AM
  #3  
TorchRedlt4man's Avatar
TorchRedlt4man
Drifting
20 Year Member
All Eyes On Me
Photogenic
Liked
 
Joined: May 2005
Posts: 1,336
Likes: 12
From: Chicago Executive Airport, formerly known as Palwaukee
No-IL Events Coordinator
St. Jude Donor '12-'13-'14-'15-'16-'17
Default

What's not to like?

Edelbrock, powder coated & black!

Looks absolutely stunning!

Let us all know how that puppy goes!

PS Who makes the Throttle Body & what size?
Reply
Old Sep 21, 2012 | 08:35 AM
  #4  
Midnight 85's Avatar
Midnight 85
Thread Starter
Le Mans Master
15 Year Member
 
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
Default

Originally Posted by Dynamo6969
god that is beautiful! let us know if you have any hood clearance issues, im looking in to this for my '89 (or HSR or miniram)

cant wait for some results!
I have about 1/4 to 3/8 inch clearance and with the way the hood is curved in that area I don't think flex will even bother it. My throttle body is a polished piece from Summit, I have heard there COULD be slight grinding to do to a stock ls tb. Please be patient I still have a lot of pricy items to get before it will be running again, probably early to mid spring. I agree, I can't wait to see what it does for performance.

Sorry Torch Red, I left out the size of the tb. I opted for an 80mm but the same tb is available in 85mm

Last edited by Midnight 85; Sep 21, 2012 at 08:38 AM.
Reply
Old Sep 21, 2012 | 09:07 AM
  #5  
shakedown067's Avatar
shakedown067
Le Mans Master
15 Year Member
 
Joined: Dec 2003
Posts: 5,768
Likes: 33
From: Van Steel Corvettes
St. Jude Donor '12-'13
Default

Looks FANTASTIC! Now I just need someone with an 88 or newer to do this mod and sell their old intake dirt cheap to put on my truck!
Reply
Old Sep 21, 2012 | 09:08 AM
  #6  
Kubs's Avatar
Kubs
Le Mans Master
15 Year Member
Community Builder
Community Favorite
Top Answer: 5
 
Joined: Oct 2007
Posts: 9,682
Likes: 3,432
From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
Default

It was forum member USAsonlyway who did the swap on his car in the Vette article. He really enjoys it, hopefully he sees this. This intake was one of my options looking for an intake, but I settled on the single plane.
Reply
Old Sep 21, 2012 | 09:14 AM
  #7  
Midnight 85's Avatar
Midnight 85
Thread Starter
Le Mans Master
15 Year Member
 
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
Default

Originally Posted by Kubs
It was forum member USAsonlyway who did the swap on his car in the Vette article. He really enjoys it, hopefully he sees this. This intake was one of my options looking for an intake, but I settled on the single plane.
That article was a major reason I went with this intake. I am really pumped about seeing the results.
Reply
Old Sep 21, 2012 | 09:47 AM
  #8  
scorp508's Avatar
scorp508
Team Owner
Supporting Lifetime Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2000
Posts: 83,381
Likes: 87
From: Boston, MA
Default

In all the years I've never even heard of that intake let alone see it on an L98.

What is its power range supposed to be?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-1

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Sep 21, 2012 | 11:01 AM
  #9  
THE 383 admiral's Avatar
THE 383 admiral
Melting Slicks
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2010
Posts: 2,422
Likes: 202
Default

I wish this was out. when I purchased my HSR.. its a great intake from what I have read.. its a cross LT1 & HSR base, LT1 plenum, LS TB
This intake will most likely need more initial timing.. just like the HSR just starts to wake up @ 10* 12- 14 * hold on
I would get this combo tuned if I were you. Someone that has worked with the pro flow. To take full advantage. or learn & burn yourself is the best way. it takes a lot of log time to dial properly. keep us posted. Looks great

Last edited by THE 383 admiral; Sep 21, 2012 at 11:05 AM.
Reply
Old Sep 21, 2012 | 11:16 AM
  #10  
Bandit's C4's Avatar
Bandit's C4
Drifting
 
Joined: May 2012
Posts: 1,336
Likes: 15
From: Mechanicsburg PA
Central PA Events Coordinator
St. Jude Donor '12-'13
Default

homina-homina-homina-homina [Jackie Gleason mod]


Simply go-jus....
Reply
Old Sep 21, 2012 | 01:26 PM
  #11  
BrianCunningham's Avatar
BrianCunningham
Team Owner
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2001
Posts: 30,845
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
Default

Nice!
Reply
Old Sep 21, 2012 | 01:30 PM
  #12  
ch@0s's Avatar
ch@0s
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
Default

Originally Posted by scorp508
In all the years I've never even heard of that intake let alone see it on an L98.

What is its power range supposed to be?
It's fairly new. I tell you what its great to see a new product that fits under out hood. From what I understand you could pick up a used LS TB and use it with the Pro Flo making it an ever cheaper option.
Reply
Old Sep 21, 2012 | 01:56 PM
  #13  
383vett's Avatar
383vett
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2003
Posts: 17,698
Likes: 1,667
From: moraga ca
Default

Looks nice. Get going on the project. Spring is a long time. You should get it running by Sunday.
Reply
Old Sep 21, 2012 | 02:42 PM
  #14  
Midnight 85's Avatar
Midnight 85
Thread Starter
Le Mans Master
15 Year Member
 
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
Default

Originally Posted by 383vett
Looks nice. Get going on the project. Spring is a long time. You should get it running by Sunday.
All donations are greatly appreciated. If getting it fired were the only thing it would be done by Sunday. Too many small parts left to buy yet.
Reply
Old Sep 21, 2012 | 02:44 PM
  #15  
Midnight 85's Avatar
Midnight 85
Thread Starter
Le Mans Master
15 Year Member
 
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
Default

Originally Posted by scorp508
In all the years I've never even heard of that intake let alone see it on an L98.

What is its power range supposed to be?
1500 to 6500, almost perfect match to my cam's power band.
Reply
Old Sep 21, 2012 | 03:10 PM
  #16  
cv67's Avatar
cv67
Team Owner
15 Year Member
 
Joined: Oct 2004
Posts: 81,241
Likes: 3,062
From: altered state
St. Jude Donor '05
Default

Like how you did it up I bet you love it with that 383 will make substantial torque and wont die off once the fun begins. Faster all the way around!

Me thinks youll forget all about long tube runners.
Sure is easier to put on!!

black finish looks nice and clean
Reply
Old Sep 21, 2012 | 04:42 PM
  #17  
AirForceOne!'s Avatar
AirForceOne!
Drifting
 
Joined: Jul 2012
Posts: 1,796
Likes: 14
From: Nampa Idaho
Default

Very nice! I'm going to replace my L98 with an LS-9 when it craps out!
Reply

Get notified of new replies

To Bye Bye TPI

Old Sep 21, 2012 | 08:23 PM
  #18  
Midnight 85's Avatar
Midnight 85
Thread Starter
Le Mans Master
15 Year Member
 
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
Default

Originally Posted by THE 383 admiral
I wish this was out. when I purchased my HSR.. its a great intake from what I have read.. its a cross LT1 & HSR base, LT1 plenum, LS TB
This intake will most likely need more initial timing.. just like the HSR just starts to wake up @ 10* 12- 14 * hold on
I would get this combo tuned if I were you. Someone that has worked with the pro flow. To take full advantage. or learn & burn yourself is the best way. it takes a lot of log time to dial properly. keep us posted. Looks great
I'm going to get a PROM from PCMforless Which will be according to my mods, then I will get it dynoed locally & have PCM tweak it if it needs it.

Thanks to all you guys, I'm glad you like the setup and I hope I can give very favorable reviews on it.
Reply
Old Sep 21, 2012 | 09:15 PM
  #19  
dclafleur's Avatar
dclafleur
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2005
Posts: 6,551
Likes: 36
From: Jenks OK
Default

Looks good!
Reply
Old Sep 21, 2012 | 10:01 PM
  #20  
Midnight 85's Avatar
Midnight 85
Thread Starter
Le Mans Master
15 Year Member
 
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
Default

Originally Posted by dclafleur
Looks good!
Thanks Dan, how have you been?
Reply



All times are GMT -4. The time now is 02:27 AM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE