03-14-2011, 10:07 AM | #1 |
BANNED
Join Date: May 2010
Posts: 3,019
|
9 super 7
I recently had the occasion to build a 3x2 setup for a customer. We used
the 9 super 7 Speedway carbs as part of an intake/ carb/ linkage/fuel line deal. I will say that the carbs functioned just fine and the package deal included every widgit imaginable. The carbs come complete as singles and had to be be converted to run as 3x2's. The middle carb required rejetting and the end carbs required the bases changed to those supplied with no idle circuits. As a matter of course I always install any carb I touch on my test motor to check for function and leaks etc. As I said before ,the carbs worked great BUT ALL 3 LEAKED from #1 & #3 brass plug. Further investigation re- vealed the center plugs on all 3 carbs were loctited in place to stop leaks there. The gaskets on 1 & 3 plug were soft nylon while the center was the more typical fiber. The leaks varied from a small steady drip to an annoying weep. Because of the deadline I repaired the problem myself rather than send- ing the carbs back. What I found was the gasket faces on the 3 plug holes were not flat and off square to the 3/8 - 24 thread from .008 to .020. Their use of the soft nylon gaskets and locktite as a solution was regret- table. It's nice to have a decent shop to address problems such as this especially considering a no time to spare dead line. I fixtured the bowls and spot faced the plug gasket faces flat and square to the threads. I have discussed this situation with Speedway and will forward to them digital photos etc. They were aware of the problem but were under the assumption the nylon gaskets had adequately addressed it. I am a loyal Speedway customer and will remain so. Charlie ny |
03-14-2011, 02:22 PM | #2 |
Senior Member
Join Date: May 2010
Location: Near Rising Sun, Maryland
Posts: 10,858
|
Re: 9 super 7
Charlie, I had a discussion with your Hershey neighbor, Speedy Bill himself, last October in the Red Field at Hershey. He flat out denied that Speedway was having any problems, matter-of-fact he said they never had any problems whatsoever with their 9 super 7 carburetors. I told him that I had read all of the problem reports and published articles comparing their carb to the English made 97's and to properly rebuilt original 97's. He still denied ever having any of these problems. He said his 9 Super 7's were doing so well and selling so fast that he can't keep them in stock on their shelves. I buy a lot of things from Speedway and I have never had a problem dealing with them but I would not recommend buying their 9 Super 7 carburetors until they admit their problems and somehow prove to me that they have fixed them. JMO
__________________
John "Never give up on what you really want to do. The person with big dreams is more powerful than one with all the facts". Albert Einstein Last edited by JM 35 Sedan; 03-14-2011 at 02:59 PM. |
Sponsored Links (Register now to hide all advertisements) |
|
03-15-2011, 05:38 AM | #3 |
Senior Member
Join Date: Aug 2010
Location: Lead. South Dakota
Posts: 963
|
Re: 9 super 7
I bought three 9 super 7 and they all had issues. I read some of the test reports about the carbs and they described the problems correctly. I was disappointed with the purchase. I think I will send them to kenct and see if he can fix the problems when I have some money.
All three plugs leaked, the butterfly did not close in the same location all of the time and the floats were not set correctly were some of the original problems.
__________________
IF IT CAN NOT BE FIXED WITH BLASTING WIRE, JB WELD OR DUCT TAPE ---IT CAN NOT BE FIXED Do not get me started on the stupidity of ethanol. I think one of the monitors is from Iowa and he will delete the thread. |
03-15-2011, 08:16 AM | #4 | |
BANNED
Join Date: May 2010
Location: stratford,ct
Posts: 5,971
|
Re: 9 super 7
Quote:
|
|
03-15-2011, 08:34 AM | #5 |
Senior Member
Join Date: May 2010
Location: SLC Utah
Posts: 798
|
Re: 9 super 7
No sympathy here!
__________________
RIP Tyler... My Son, Helper & Best Friend. Feb '78 to Father's Day '10. www.97-express.com ~ [email protected] |
03-15-2011, 09:34 AM | #6 |
BANNED
Join Date: May 2010
Posts: 3,019
|
Re: 9 super 7
Sponsored Links (Register now to hide all advertisements)
If you can't find anyone else I'll do them. I was a bit apprehensive about posting the 9 super 7 blurb and I only did because the purpose of the Barn is to get the word out. We all have to eat crow once in awhile but it's usually because we are attempting to breath life into 70 year old carbs etc. Speedways 9 super 7 are brand new and the video they have on their website touts them as having been leak tested, among other virtues. Trust me on this...the gasket faces on the bowl are so far off only a milling machine and a good holding fixture can make them right. This ain't no drill press job. Charlie ny [email protected] PS: I'd love to have Speedway weigh in on this situation....right here on the Barn! |
03-15-2011, 09:39 AM | #7 | |
Senior Member
Join Date: May 2010
Location: Near Rising Sun, Maryland
Posts: 10,858
|
Re: 9 super 7
Quote:
__________________
John "Never give up on what you really want to do. The person with big dreams is more powerful than one with all the facts". Albert Einstein |
|
03-15-2011, 12:27 PM | #8 | |
Member
Join Date: Feb 2011
Posts: 31
|
Re: 9 super 7
Quote:
I have taken a few of them apart to try and fix them but there are gross mechanical problems with the castings over multiple sets that I have seen. I have yet to see a single set run out of the box correctly or even run well with tons of tuning time. Seriously better off finding worn out originals and refurbish them then dealing with the Speedway ones. |
|
03-15-2011, 05:58 PM | #9 | |
Senior Member
Join Date: May 2010
Location: Northern California,coast
Posts: 552
|
Re: 9 super 7
Quote:
HAY; New to the Barn and the hobby: NOTE; three of the premiere carb rebuilders on the Barn are "saying not me" or "not here"..to the new 9super7... think about it. .. THE DOOR IS OPEN SPEEDWAY BILL .. thanks for reading me.. |
|
03-15-2011, 06:47 PM | #10 |
Senior Member
Join Date: May 2010
Location: FP, NJ
Posts: 2,770
|
Re: 9 super 7
Anyone have any first hand experience with Edelbrock's new 94's?
__________________
Don't never get rid of nuthin! |
03-15-2011, 09:50 PM | #11 | |
Member
Join Date: Nov 2010
Location: Sacramento
Posts: 47
|
Re: 9 super 7
Quote:
I know several people who run the new the 9super7 and have "NO" issues.. I also know of some that have had issues.. The only problem that I've seen in the 9super7 is the accelerator pump is weak and will fall apart, I have replaced two for my friends.. Charlie is the person to mix the problems.. My 9 cents.. Duane..
__________________
..Commitment is a 100%.. |
|
03-15-2011, 10:43 PM | #12 |
Senior Member
Join Date: May 2010
Location: South Orange County, Ca.
Posts: 685
|
Re: 9 super 7
speed away from speedway............
I've used the edelbrock once so far and they're happy with it. I had no problems tuning it, but it does have an aluminum base and no bushings (but I think it will take a LONG time to wear out). |
03-16-2011, 05:31 AM | #13 |
Senior Member
Join Date: May 2010
Location: Georgia
Posts: 611
|
Re: 9 super 7
I have a set on my 40 and I don't know why they still leak by needle and seat.You would think they could make them hold 6psi fuel pressure like the regular carbs do.That is my only problem.My reg went bad and flooded the engine so bad gas got into the oil pan.
|
03-16-2011, 07:34 AM | #14 |
Senior Member
Join Date: Oct 2010
Location: North Pole, Alaska
Posts: 1,470
|
Re: 9 super 7
I've got the Edelbrock catalog and they are listed as having Cast Iron bases.
Is this an error, or did they change production after they published the catalog? |
03-16-2011, 11:01 AM | #15 |
Member
Join Date: Feb 2011
Posts: 31
|
Re: 9 super 7
My original 97's do not leak at all, its in the fuel pressure and assembling them correctly.
There are a few how to's on the HAMB. My favorite trick is a piece of glass and high grit sandpaper to lap the serufaces that mate and not over torquing the bolt. I will admit they could use another bolt or two in the original design to spread out the load but thats a personal opinion. |
03-16-2011, 10:38 PM | #16 | |
Senior Member
Join Date: May 2010
Location: South Orange County, Ca.
Posts: 685
|
Re: 9 super 7
Quote:
Customer bought it through a parts store ( I wanted to use a HAMB vendor), so they dealt with finding the correct arm. |
|
03-17-2011, 08:50 PM | #17 |
Senior Member
Join Date: Oct 2010
Location: North Pole, Alaska
Posts: 1,470
|
Re: 9 super 7
Yep, I just got a copy of Hot Rod, and now they are advertising the aluminum bases.
I wonder if they ever made them cast iron? Back to the subject of 97's, what are good rebuilt originals going for? |
06-15-2011, 08:15 AM | #18 |
Senior Member
Join Date: Aug 2010
Location: Lead. South Dakota
Posts: 963
|
Re: 9 super 7
I brought this thread back to the top because a guy on the model "A" forum said he only read good things about the supper 9-7 carbs on the HAMB. He is from Durango, Colorado.
__________________
IF IT CAN NOT BE FIXED WITH BLASTING WIRE, JB WELD OR DUCT TAPE ---IT CAN NOT BE FIXED Do not get me started on the stupidity of ethanol. I think one of the monitors is from Iowa and he will delete the thread. Last edited by sturgis 39; 06-15-2011 at 12:38 PM. Reason: removed btt and added some verbage 17 and 1086 |
06-15-2011, 12:33 PM | #19 | |
BANNED
Join Date: May 2010
Location: stratford,ct
Posts: 5,971
|
Re: 9 super 7
Quote:
|
|
02-25-2020, 10:52 AM | #20 |
Junior Member
Join Date: Feb 2020
Posts: 2
|
Re: 9 super 7
i just happen to have a set of Stromberg 97's still attached to an original Edelbrock SU 349 (3 duece) intake manifold if b willing to part with got a reasonable price. for questions and pictures 661-565-2251
|
02-25-2020, 09:32 PM | #21 |
Senior Member
Join Date: May 2010
Location: Williamsburg, Virginia
Posts: 2,654
|
Re: 9 super 7
Thanks for postingballmm noon the 9super7 info. They seem to be a crap shoot as my buddy bought one for his AV8 21 stud and has had no issues. Go figure ....
As for the new Edelbrocks, I have a primary and a secondary on my avatar’s progressive “Y” adapted stock manifold. They pull great and so far no issues other than having to change the jets on the primary - they were 56s, waaay to big for me. Dropped to 52s and may drop a little farther to 50s. Very pleased with them so far .....
__________________
Run to the LA Roadster Show - 2016 My Run to Bonneville - 2013 My 32 5-Window Build My Run to the LSRU Last edited by TomT/Williamsburg; 02-25-2020 at 09:37 PM. |
|
|
Sponsored Links (Register now to hide all advertisements) |
|