C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Straub Tech BBC HYD roller idling....

Thread Tools
 
Search this Thread
 
Old Mar 28, 2015 | 01:41 AM
  #21  
Z06FEVER's Avatar
Z06FEVER
Instructor
 
Joined: Jan 2013
Posts: 218
Likes: 0
From: Missouri
Default

Originally Posted by ajrothm
Here is the #963 intake





Definitely not good for HP... The #163 was a much better intake. Ofcourse the L88/ZL1 was probably the best factory intakes.

We were doing the stock/restoration thing so...Its what I was stuck with, just like stuck with the stock exhaust manifolds.
Well your engine sounds very good and hope it runs well. That picture of the intake is what I was thinking which is a power robber, but with doing a numbers intake, I understand you need that specific one. My L88/ZL1 intake has the divider partially machined and I am running staggered jetting. My engine runs really well and has absolutely no flat spots. I think it runs better now going from the square jetting to staggered as how GM had it on that intake. I did increase the jet sizes up 2 sizes from factory and it seems to really like it.
Reply
Old Mar 28, 2015 | 01:43 AM
  #22  
Z06FEVER's Avatar
Z06FEVER
Instructor
 
Joined: Jan 2013
Posts: 218
Likes: 0
From: Missouri
Default

Originally Posted by forvicjr
I want to change cams in my BB, 496 with 781 heads and big tube full lenth headers. Wonder if this would be a good choice? Runnin a comp magnum roller now, smallish at 510 lift. Idles like a caddy and drives me nuts. I want some decent idle and more hp too! Where do I place my order?? Lol
Yes, call and ask for Chris. He is very knowledgeable and will provide you specific recommendations on your application. You will be very happy with his product. I have run Crane,Comp and some smaller companies and Straub by far has the best products.
Reply
Old Mar 28, 2015 | 07:30 PM
  #23  
ajrothm's Avatar
ajrothm
Thread Starter
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
Default

Originally Posted by learje
Great to see another baby rat w a Straub roller! sounds great! (and familiar). mine, w an airgap and headers pulls hard from 2500or so as far as ive been brave enough to rev it...about 6500. seems like it would keep on goin. lookin fwd to your testing and tuning, ive still got a bunch to finish on mine when im done w the TA replacement.

forvicjr call Mr Straub, he will set you up, and he is always there to help
Man I WISH I could have put an RPM air gap, 750 DP and headers on this thing, I am sure it would break 500-525hp with stock heads. The bottom end of this motor is SOLID... It's just choked up from a crappy intake, crappy closed chamber heads with huge valves and stock manifolds..

Between the headers/intake I bet we are giving up 50hp...

It did win two trophies at an all corvette show today. President's Choice and Class Winner. My dad was real proud of it.
Reply
Old Mar 29, 2015 | 03:16 PM
  #24  
bluedawg's Avatar
bluedawg
Safety Car
 
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak
Default

Originally Posted by ajrothm
Finally got our exhaust system built and uncorked the 396.
Stock Vette manifolds feeding 2.5" mandrel bent head pipes, going to 3.5" (2.5" ID) Classic Chambered side pipes, stock 2.75" stainless tips..

Sounds much better letting it breathe..

Straub Tech HYD roller, 237/245*, .620/.556 Lift, 109 lsa. Pulls clean to 6600...


1965 Corvette 396/425hp (Straub roller/classic chambered pipes) - YouTube
Very nice, such a good looking corvette AJ.
Reply
Old Mar 29, 2015 | 06:05 PM
  #25  
Chambered's Avatar
Chambered
Race Director
Active Streak: 60 Days
Conversation Starter
Photogenic
Photoriffic
 
Joined: Jan 2005
Posts: 11,017
Likes: 166
From: Milford Michigan
Default

Alan, this sounds great. I had to look up & see if you got the full-boogie chambered or the VettePacks. Beautiful.
Reply
Old Mar 29, 2015 | 10:59 PM
  #26  
ajrothm's Avatar
ajrothm
Thread Starter
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
Default

Originally Posted by Chambered
Alan, this sounds great. I had to look up & see if you got the full-boogie chambered or the VettePacks. Beautiful.
Hey Eric, yeah I just used the regular 3.5" chambered pipes... They sounded closer to the original GM pipe sound to me then the VettePacks did...I liked the sound better.

I will say we had hell stuffing those 3.5" pipes up in the stock covers without spacing them.. VERY close to the frame...Actually touched the frame in some spots and we had to tweak it until it cleared.



2.5" stainless, mandrel bends we sectioned together for head pipes






Reply
Old Mar 30, 2015 | 12:26 AM
  #27  
Bad Bird's Avatar
Bad Bird
Racer
 
Joined: May 2011
Posts: 484
Likes: 10
From: Newcastle NSW
Default

Absolutely exceptional execution.

I am planning on running 3.5" OD Vettepacks on my '69, but I'll have to make some spacers to make it happen unfortunately.
Reply
Old Mar 30, 2015 | 11:36 PM
  #28  
Chambered's Avatar
Chambered
Race Director
Active Streak: 60 Days
Conversation Starter
Photogenic
Photoriffic
 
Joined: Jan 2005
Posts: 11,017
Likes: 166
From: Milford Michigan
Default

Alan - VERY NICE! I've never had anybody with a C-3 fit the 3.5" OD mufflers under the covers. Close but no problem on a C-2 - most of the ones people order are 3.5" bodies with 2.5" cores.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

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

 Joe Kucinski
story-3

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

 Verdad Gallardo
story-4

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

 Joe Kucinski
story-5

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

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

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

 Michael S. Palmer
story-8

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

 Joe Kucinski
story-9

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

 Michael S. Palmer




All times are GMT -4. The time now is 12:35 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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