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

C4 Beam Plates - my impressions

Thread Tools
 
Search this Thread
 
Old Dec 28, 2001 | 10:18 AM
  #21  
92TripleBlack's Avatar
92TripleBlack
Safety Car
 
Joined: Jul 2001
Posts: 4,178
Likes: 2
From: Windermere FL
Default Re: C4 Beam Plates - my impressions (FrankUrbinati)

Never had the slide right problem, nor a problem beating Cobras either.;)
Reply
Old Dec 28, 2001 | 10:38 AM
  #22  
devilfish's Avatar
devilfish
Melting Slicks
15 Year Member
 
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Default Re: C4 Beam Plates - my impressions (92TripleBlack)

cant be to hard to make beam plates..

Reply
Old Dec 28, 2001 | 01:12 PM
  #23  
BBA's Avatar
BBA
Safety Car
20 Year Member
 
Joined: Dec 2000
Posts: 3,767
Likes: 5
From: Jacksonville Fl
Default Re: C4 Beam Plates - my impressions (FrankUrbinati)

I have heard from more than 1 ZR1 owner that these plate's worked out very nice
Ok...I'm not gonna call anyone out here...

BUT: Anyone with a ZR1 is probably performance minded and will want to add any gimmick they are sold on...then they will swear it made a difference. Especially if the weather was good on the day they ran the track. :D

If GM decided that using hardening silicone on the torque tube provided the correct stiffening of the beam...then that's all it needs. I will go the "I can afford $1.79 for a tube of caulk" route myself next time my rearend is out.

Oh...BTW: My 87 with 108K mi has not problem on shifting when the tires break traction between 1-2 either.
Reply
Old Dec 28, 2001 | 06:44 PM
  #24  
ericcer's Avatar
ericcer
Thread Starter
Drifting
 
Joined: Jul 2001
Posts: 1,296
Likes: 0
From: Largo Florida
Default Re: C4 Beam Plates - my impressions (BBA)

Oh...BTW: My 87 with 108K mi has not problem on shifting when the tires break traction between 1-2 either.
and does your car produce 300+ rwhp? How about powershifting 2-3?
Reply
Old Dec 28, 2001 | 07:00 PM
  #25  
Gonzo's Avatar
Gonzo
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2000
Posts: 7,096
Likes: 153
From: "Atlanta" Ga.
Default Re: C4 Beam Plates - my impressions (BBA)

Hey
I have them on my LT4, I cant say they make as much differnce as the cross bar made, but my theory is this: Anything that makes the frame stiffer is good.
I am also waiting on my camber brace I am hoping the combination works to get even better results. I plan on trying autocross this summer and getting to the track.
As to whether or not they are worth the cost, thats subjective. I have plenty Of friends tell me the car is'nt worth it. But my Humble opinion is this this, I work 60 hours a week and I take care of ALL my finacial obligations first, if I want to spend a hundred bucks on something experimental for my vette, why not its my only hobby, and its my cash.

Gonzo
Reply
Old Dec 28, 2001 | 08:15 PM
  #26  
snaketr's Avatar
snaketr
Drifting
 
Joined: Jan 2001
Posts: 1,669
Likes: 1
Default Re: C4 Beam Plates - my impressions (Gonzo)

Whoa arn't we getting a little to upset here. BBA I do sell these at work which I do not own. I know Bill and I know everyone is skeptical about these plates. Yes they work, no they are not pretty. If anyone thinks they can make them for less, probably assuming you own a TIG welder and know they layout of the plates. That would not be fair to Bill at ZR51 Performance in that he had the great idea and the knowledge to do this. Also G.M. realized the same thing and if you own a late 96' 6spd Vette yours has them on it. You will not make more horsepower with these, they are a driveline mod. However they do help get the horsepower to the ground, and for those that just can't seem to understand that and it's benifits well I'm sure that you can spend your money on a throttle body spacer instead. As for me my beam plates work and I am glad I have them on my Vette.
Reply
Old Dec 28, 2001 | 08:29 PM
  #27  
The Dingo's Avatar
The Dingo
Team Owner
St. Jude 10 Year Donor
25 Year Member
Photogenic
Liked
 
Joined: Aug 2000
Posts: 42,934
Likes: 18
From: Sydney, Australia
CI 6-7-8-9-10 Veteran
St. Jude Donor '07-'08-'09-'10-'11-'12-'13-'14-'15-'16-‘17, '22
Default Re: C4 Beam Plates - my impressions (BBA)

On hard 1-2 shifts my tail kicks out and I will be buying a set of these to try for my car in the next month or so. My car is pretty much my main obsession - er, I meant hobby... ;) and the $150-$180 I'll spend on the brackets is not much of an issue for me. It won't be the only part I've bought for my car that people think is overpriced for what it is either. Different strokes for different folks I guess.

Not a flame but food for thought - using an intake designed for a 305 on the 350ci L98's from 85 to 91 was good enough for GM too, maybe the silicone sealant and OEM bolt arrangement is functional but not the ideal setup...

JMO :)
Reply
Old Dec 28, 2001 | 08:35 PM
  #28  
LT-IV's Avatar
LT-IV
Racer
 
Joined: Jan 2001
Posts: 453
Likes: 0
From: Veracruz
Default Re: C4 Beam Plates - my impressions (snaketr)

Anybody know when they made the change in 96?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

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

 Verdad Gallardo
story-2

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-3

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

 Michael S. Palmer
story-4

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

 Joe Kucinski
story-5

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

 Michael S. Palmer
story-6

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

 Joe Kucinski
story-7

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-8

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-9

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
Old Dec 28, 2001 | 08:38 PM
  #29  
89vette's Avatar
89vette
Melting Slicks
20 Year Member
 
Joined: Aug 2000
Posts: 2,381
Likes: 42
From: Murrysville PA
Default Re: C4 Beam Plates - my impressions (LT-IV)

I have them on my 89. My car does track straight I have to say. I thought they were a rip off at first but my car does not kick out when I shift hard. With the 396 its hard NOT to break the tires loose even during normal driving.
Reply
Old Dec 31, 2001 | 12:46 PM
  #30  
NavyVet's Avatar
NavyVet
Drifting
15 Year Member
 
Joined: Jul 2000
Posts: 1,661
Likes: 4
From: Phoenix, Arizona
Default Re: C4 Beam Plates - my impressions (ericcer)

I don't understand the performance issue here. I've had them for a while - from Exotic Muscle in Phoenix/Tempe AZ. They make bolting things back up much easier than the stock nuts because they don't have to be held in place with a wrench in a place so hard to reach. The end result is usually that the beam doesn't come loose (many previous threads about shifter lift - most turn out to be loose beam attachment). They're worth the $$ if you ever remove it again and they make getting it properly tightened much easier. However, compared to properly installed stock beam bolts & nuts, I can't see how there could be a performance difference. To me, they're worth the money, but not as a handling mod. Just my humble opinion and $.02.
Reply
Old Dec 31, 2001 | 01:03 PM
  #31  
Rkreigh's Avatar
Rkreigh
Race Director
25 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Liked
 
Joined: Dec 1999
Posts: 10,230
Likes: 885
From: Alexandria, Virginia, USA VA
Default Re: C4 Beam Plates - my impressions (NavyVet)

I have a 90 DRM 450 HP ZR1. even with a roll bar and the Comp TA
315s in back, I noticed a difference with the plates. keep in mind that when you shift hard at high RPMs, the chassis flexes and the rear moves around more. MANY of the C4s have the beam bolts loosen up, and the bolts can dig into the beam too (that's why GM uses the goo under the bolts). on my car with 4.10 gears, the car sidestepped pretty bad on on the 1 -2 and even the 2 - 3 shift when really gettin on it. the plates help the car plant the torque better by minimizing beam flex and helping put the power to the pavement. on my car, I need all the traction I can get!!!

IMHO the plates work very well and are worth doing on any C4. they stiffen the car up, and make installation of the beam much easier.

Contact me if you would like a set, I have a few sets left at the "intro" pricing from 6 months ago.

Ron_Kreigh@hotmail.com

FYI, I've been keeping track of folks that have installed the plates, and so far everyone has noticed an increase in stiffness during hard shifts. many were surprised that this small inexpensive mod could make a difference. but it's just simple engineering (not snakeoil). let me know if you are interested. Happy New Year!!! keep the rpms and the shiney side up!!!
Reply
Old Dec 31, 2001 | 01:27 PM
  #32  
BBA's Avatar
BBA
Safety Car
20 Year Member
 
Joined: Dec 2000
Posts: 3,767
Likes: 5
From: Jacksonville Fl
Default Re: C4 Beam Plates - my impressions (snaketr)

That would not be fair to Bill at ZR51 Performance in that he had the great idea and the knowledge to do this. Also G.M. realized the same thing and if you own a late 96' 6spd Vette yours has them on it.
Do you realize what you just said?

Here...so, if GM used them in 96...how can your friend claim he thought it up?

The biggest problem I have here is your 'bud' at ZR51 or whatever, seems to be a RIP OFF artist. These things are worth MAYBE $25.00...TOPS.

I wonder how much GM charges for the ones on the '96?


Hey...you know, if you REALLY wanted to help out people... you'd have the part number the 96 uses so we can order them straight from Chevy...at what I would think must be a huge savings over the RIP OFF artists price.

But that would be wrong to your 'business ethics' now wouldn't it?

Reply
Old Dec 31, 2001 | 01:49 PM
  #33  
ConeKLR's Avatar
ConeKLR
Safety Car
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Feb 2000
Posts: 4,230
Likes: 0
From: VA
Cruise-In II Veteran
Default Re: C4 Beam Plates - my impressions (snaketr)

Whoa arn't we getting a little to upset here. BBA I do sell these at work which I do not own. I know Bill and I know everyone is skeptical about these plates. Yes they work, no they are not pretty. If anyone thinks they can make them for less, probably assuming you own a TIG welder and know they layout of the plates. That would not be fair to Bill at ZR51 Performance in that he had the great idea and the knowledge to do this. Also G.M. realized the same thing and if you own a late 96' 6spd Vette yours has them on it. You will not make more horsepower with these, they are a driveline mod. However they do help get the horsepower to the ground, and for those that just can't seem to understand that and it's benifits well I'm sure that you can spend your money on a throttle body spacer instead. As for me my beam plates work and I am glad I have them on my Vette.
"if you own a late 96' 6spd Vette yours has them on it."
Huh? :eek:
This is the first time I've heard of this out of all the post on these things.
I replaced the clucth myself on my 96, did not see anything like mentioned.
Snake, can you explain what they look like? Are they located on top or bottom of the bolt holes? So are you telling me my 96 does not need the beam plates?
Thanks :cheers:
Reply
Old Dec 31, 2001 | 02:51 PM
  #34  
The Dingo's Avatar
The Dingo
Team Owner
St. Jude 10 Year Donor
25 Year Member
Photogenic
Liked
 
Joined: Aug 2000
Posts: 42,934
Likes: 18
From: Sydney, Australia
CI 6-7-8-9-10 Veteran
St. Jude Donor '07-'08-'09-'10-'11-'12-'13-'14-'15-'16-‘17, '22
Default Re: C4 Beam Plates - my impressions (BBA)

That would not be fair to Bill at ZR51 Performance in that he had the great idea and the knowledge to do this. Also G.M. realized the same thing and if you own a late 96' 6spd Vette yours has them on it.


Do you realize what you just said?

Here...so, if GM used them in 96...how can your friend claim he thought it up?

The biggest problem I have here is your 'bud' at ZR51 or whatever, seems to be a RIP OFF artist. These things are worth MAYBE $25.00...TOPS.

I wonder how much GM charges for the ones on the '96?


Hey...you know, if you REALLY wanted to help out people... you'd have the part number the 96 uses so we can order them straight from Chevy...at what I would think must be a huge savings over the RIP OFF artists price.

But that would be wrong to your 'business ethics' now wouldn't it?
I'll only comment on your opinion of the value of these plates with my opinion on their perceived value.

Both RKreigh and Bill Boudreau have sent me pics of these brackets. They are not solid chunks of stainless cut to size and drilled out. They are several pieces of stainless welded together. The process does not look to be a two minute job from start of manufacturing to finish, so to speak.

For me, I will hand over my hard earned $ for a set for the following reasons:
1. I haven't heard a bad thing about the work or products of ZR51 perf. anywhere except in threads on this forum about these plates - the negative comments never come from people who have sampled his wares - only those who haven't.
2. I believe Bill developed these and believe I should support innovators by spending my money with them rather than giving to somone else ripping off their idea or trying to duplicate their idea at home.

As far as these plates being fitted as standard on 96 models - this thread is the first time I've heard that and I'm not too sure if that is the case.

JMO. Peace.
Reply
Old Dec 31, 2001 | 03:05 PM
  #35  
Eric Fischer's Avatar
Eric Fischer
Melting Slicks
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Oct 2000
Posts: 2,726
Likes: 24
From: Freehold, NJ
Default Re: C4 Beam Plates - my impressions (ericcer)

Why does everyone think it is such a great innovation to develop these plates? They fulfill a very simple need - to make it easier to put the car the car back together. Then by a stroke of marketing genius someone suggests that "hey, these things improve the structural integretity of the drivetrain" and BAMM another $179 gizmo is born.

They definitely make the car easier to work on. Do they increase the structural rigidity of the drivetrain? NAH, I don't think so. Wishful thinking maybe. I would suspect if there were a problem with torque beam flex then the holes in the torque beam would eventually become elongated. Has anyone EVER noticed that the holes are elongated in their torque beams? I for one, have not. IMHO, if the holes are not elongated, then the torque plates cannot fix a problem that does not exist.
Reply
Old Dec 31, 2001 | 03:57 PM
  #36  
ericcer's Avatar
ericcer
Thread Starter
Drifting
 
Joined: Jul 2001
Posts: 1,296
Likes: 0
From: Largo Florida
Default Re: C4 Beam Plates - my impressions (Eric Fischer)

I would suspect if there were a problem with torque beam flex then the holes in the torque beam would eventually become elongated. Has anyone EVER noticed that the holes are elongated in their torque beams? I for one, have not. IMHO, if the holes are not elongated, then the torque plates cannot fix a problem that does not exist.
The above is an assumption. All I can say is they work and I am not dreaming. They capture the side kick energy and force it down which translates to better traction. Better traction means better ET.

...the negative comments never come from people who have sampled his wares - only those who haven't.
How true!!


[Modified by ericcer, 2:38 PM 12/31/2001]
Reply
Old Dec 31, 2001 | 04:18 PM
  #37  
BBA's Avatar
BBA
Safety Car
20 Year Member
 
Joined: Dec 2000
Posts: 3,767
Likes: 5
From: Jacksonville Fl
Default Re: C4 Beam Plates - my impressions (ericcer)

quote:
--------------------------------------------------------------------------------
...the negative comments never come from people who have sampled his wares - only those who haven't.
--------------------------------------------------------------------------------

How true!!
Right...

Like, I'm going to go right out and spend $180 ( which I can imagine the real purpose of this thread is supposed to convince me to do ), just to see if the plates cure a problem my car does not even have?

My bolts seem to be staying quite tight by themselves, thank you. :D
Reply

Get notified of new replies

To C4 Beam Plates - my impressions

Old Dec 31, 2001 | 04:25 PM
  #38  
mackeyred96's Avatar
mackeyred96
Team Owner
20 Year Member
 
Joined: Nov 1999
Posts: 32,782
Likes: 11
From: Former NCM Drag Racing coordinator, National director Corvette Challenge Spring Hill, Tennessee: Whiting, New Jersey
Cruise-In VI Veteran
Cruise-In VII Veteran
Default Re: C4 Beam Plates - my impressions (ericcer)

I would suspect if there were a problem with torque beam flex then the holes in the torque beam would eventually become elongated. Has anyone EVER noticed that the holes are elongated in their torque beams? I for one, have not. IMHO, if the holes are not elongated, then the torque plates cannot fix a problem that does not exist.

The above is an assumption. All I can say is they work and I am not dreaming. They capture the side kick energy and force it down which translates to better traction. Better traction means better ET.

...the negative comments never come from people who have sampled his wares - only those who haven't.

How true!!


[Modified by ericcer, 1:58 PM 12/31/2001]

OK, I'll buy some of it "MAYBE" but please explain to me how is can be when you have NO PINION DEFLECTION. The main lose of traction in most conventional rears is due to pinion/spring wrap-up, Thats the advantage of IRS, you don't get that condition, so how can this product help????????
Reply
Old Dec 31, 2001 | 04:46 PM
  #39  
ericcer's Avatar
ericcer
Thread Starter
Drifting
 
Joined: Jul 2001
Posts: 1,296
Likes: 0
From: Largo Florida
Default Re: C4 Beam Plates - my impressions (mackeyred96)

I am not trying to convince everyone to go out and buy them. :rolleyes: ONLY the people that are experiencing this problem. It is kind of an expensive thing to buy if you really don't have the problem just to try out. If you don't have the problem forget about beam plates.

OK, I'll buy some of it "MAYBE" but please explain to me how is can be when you have NO PINION DEFLECTION. The main lose of traction in most conventional rears is due to pinion/spring wrap-up, Thats the advantage of IRS, you don't get that condition, so how can this product help????????
I understand pinion deflection and angle as it relates to traction. However, this is the first IRS performance car I've had so I am no expert in this matter. I am just telling you guys what I experienced. I suggest you email Bill (billb@zfdoc.com) at Z51 Performance so he can explain.

Like, I'm going to go right out and spend $180 ( which I can imagine the real purpose of this thread is supposed to convince me to do ),
uh, wrong :smash:


[Modified by ericcer, 3:03 PM 12/31/2001]
Reply
Old Dec 31, 2001 | 05:16 PM
  #40  
RVY's Avatar
RVY
Pro
25 Year Member
Liked
 
Joined: Apr 1999
Posts: 533
Likes: 6
From: Poinciana Florida
Default Re: C4 Beam Plates - my impressions (ericcer)

Based upon what I've read I just ordered a set of these plates. My 93 Vert kicks out to the right with both
the 1/2 as well as the 2/3 shift.But then again I'm running more than 400rwhp. If these babys do the job I'm
happy. If not, only one less dinner out with the wife. No big deal.
When you read what appears to be an ignorant reply to a post from some one who merely wants to read his thoughts
in print consider checking out his background as posted on the forum. It usually answers a lot.
Have a HAPPY NEW YEAR.
Reply



All times are GMT -4. The time now is 12:24 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-9
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE