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Search: Posts Made By: BiGgE
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Forum: Carburetors
11-12-2010, 03:16 PM
Replies: 20
Views: 7,046
Posted By BiGgE

Re: Holley 4160 750 vac secondaries

Interesting... I have never accounted for any losses accross the power valve channel, and the mass-flow rates between the bowls come out dead nuts on the dyno.

That channel must be less than 1/4"...
Forum: Carburetors
11-12-2010, 02:47 PM
Replies: 20
Views: 7,046
Posted By BiGgE

Re: Holley 4160 750 vac secondaries

At WOT, the PV is open, so the main wells are being fed by the jet and the PVCR.

A #75 jet is 0.082" in diameter. That is an area of 0.00528 in^2.
One PVCR is 0.059" in diameter. That is an area...
Forum: Carburetors
11-12-2010, 01:47 PM
Replies: 20
Views: 7,046
Posted By BiGgE

Re: Holley 4160 750 vac secondaries

I agree with everything you are saying, except this^

My Demon "stock" had #75's up front with a 0.059" PVCR, and #83's out back! That is 3 jet sizes lean out back, RIGHT OUT OF THE BOX!!! Holley...
Forum: Organized Drag Racing and Autocross
10-14-2009, 04:20 PM
Replies: 7
Views: 2,159
Posted By BiGgE

Re: How tight on roller rockers?

Roll the motor by hand, and whenever a cylinder has a valve fully open (or nearly all the way open), adjust the other valve for that cylinder. And I agree-on a hydro roller, contact plus 1/4 turn. ...
Forum: Organized Drag Racing and Autocross
06-12-2009, 10:24 AM
Replies: 237
Views: 9,986
Posted By BiGgE

Re: RAN TODAY AT THE TRACK

That is correct. You will need more base timing to keep the total timing where it is at. I would expect this to significantly increase throttle response on your engine and hopefully help to get...
Forum: Organized Drag Racing and Autocross
06-11-2009, 03:58 PM
Replies: 237
Views: 9,986
Posted By BiGgE

Re: RAN TODAY AT THE TRACK

[quote=Fast LS1;4186680]You stated your opinion about dyno tuning and I stated my opinion about your opinion.

I am very glad that dyno tuning worked well for you. I also have no doubt that dyno...
Forum: Organized Drag Racing and Autocross
06-11-2009, 03:51 PM
Replies: 237
Views: 9,986
Posted By BiGgE

Re: RAN TODAY AT THE TRACK

I have never messed with a Petronix HEI before, but in my MSD, there is a slotted groove that the advance plate rides in, and the post that the springs ride on has a bushing on it that rides in the...
Forum: Organized Drag Racing and Autocross
06-11-2009, 10:46 AM
Replies: 237
Views: 9,986
Posted By BiGgE

Re: RAN TODAY AT THE TRACK

With only 13 degress of initial timing, I would expect that motor to be sluggish on the bottom end. If I were you, I would try either locking down the advance plate, or at least putting some larger...
Forum: Organized Drag Racing and Autocross
06-11-2009, 10:39 AM
Replies: 237
Views: 9,986
Posted By BiGgE

Re: RAN TODAY AT THE TRACK

Hey, you stated your opinion earlier in the thread, now I am stating mine. Just because we don't agree doesn't mean you have to call me out stating that my opinion is wrong. The only advice I have...
Forum: Organized Drag Racing and Autocross
06-11-2009, 08:24 AM
Replies: 237
Views: 9,986
Posted By BiGgE

Re: RAN TODAY AT THE TRACK

The converter flash rpm is what rpm the motor jumps to when you get off the brake and floor the gas. Do you know how much mechanical advance your distributor has in it? I wonder if the reason you...
Forum: Organized Drag Racing and Autocross
06-10-2009, 03:37 PM
Replies: 237
Views: 9,986
Posted By BiGgE

Re: RAN TODAY AT THE TRACK

If it is hooking, not spinning and you are running a 1.9x short time, that means it should be about a 14 second car at about 95 mph. Since you are trapping 111 mph with a 12.5 et, you motor is...
Forum: Organized Drag Racing and Autocross
06-10-2009, 08:00 AM
Replies: 237
Views: 9,986
Posted By BiGgE

Re: RAN TODAY AT THE TRACK

Are you spinning off the line, or is it dead hooking?
Forum: Organized Drag Racing and Autocross
06-09-2009, 07:36 AM
Replies: 237
Views: 9,986
Posted By BiGgE

Re: RAN TODAY AT THE TRACK

Are you sure about your timing mark? You may be thinking you are running 34 degrees total, but if your mark is off, you may be way off. Definitely verify your timing mark, or just throw away your...
Forum: Organized Drag Racing and Autocross
06-04-2009, 07:16 PM
Replies: 39
Views: 1,677
Posted By BiGgE

Re: Just had my car dynoed...

In my experience, it is not uncommon to have large amounts of blowby in a new motor, at least until the rings seat. As far as the overheating goes, is it going through water, or just running hot?
...
Forum: Organized Drag Racing and Autocross
06-03-2009, 09:04 PM
Replies: 10
Views: 1,137
Posted By BiGgE

Re: selectinga new cam... need help

I agree that at this point, your converter is definitely holding you back, and going bigger on the cam is going to exacerbate the problem.

Normally, I would say not to go any bigger (higher...
Forum: Organized Drag Racing and Autocross
05-29-2009, 05:23 PM
Replies: 10
Views: 1,137
Posted By BiGgE

Re: selectinga new cam... need help

What heads do you have, and do you have any flow numbers? What is your compression?
Forum: Organized Drag Racing and Autocross
05-15-2009, 02:20 PM
Replies: 29
Views: 1,324
Posted By BiGgE

Re: 406 Is IN

I hope you have better luck with SCAT stuff than I did. I was running their 4340 crank and h-beams in an old 388 I had. They rate their h-beams to 650 hp at 8000 rpm. I had about 1000 miles on the...
Forum: Exhaust
05-15-2009, 01:36 PM
Replies: 1
Views: 590
Posted By BiGgE

Re: Spohn tq arm owners with Hooker longtubes come in here...

Look in the following thread. Somebody posted some very good pictures there.

https://www.thirdgen.org/forums/exhaust/524841-pics-longtubes-true-dual.html

Some show automatic trans, some...
Forum: Exhaust
05-13-2009, 08:03 PM
Replies: 17
Views: 10,579
Posted By BiGgE

Re: Doug's Headers

Are you running solid motor mounts?
Forum: Exhaust
05-13-2009, 07:58 PM
Replies: 6
Views: 2,714
Posted By BiGgE

Re: Pics of Longtubes/true dual with Spohn t56 x-member

Cool, thanks for the info. Looks like a PITA, lol.
Forum: Exhaust
05-06-2009, 06:35 PM
Replies: 6
Views: 2,714
Posted By BiGgE

Pics of Longtubes/true dual with Spohn t56 x-member

Hey, I have heard not so great things about people using the spohn x-member and trying to run dual exhaust-specifically with longtubes. Does anybody have any pictures of their set-up so that I can...
Forum: Exterior Parts for Sale
05-06-2009, 06:31 PM
Replies: 16
Views: 857
Posted By BiGgE

Re: 87 GTA Parts For Sale

Updated-some stuff sold. If nobody wants the rest of this stuff, its off to scrap metal...
Forum: Engine/Drivetrain/Suspension Parts for Sale
05-03-2009, 01:11 PM
Replies: 6
Views: 617
Posted By BiGgE

Re: 3.27 9 Bolt For Sale (Houston, TX)

TTT.

If nobody wants it, I am going to take it to the junkyard...
Forum: Exhaust
05-03-2009, 01:06 PM
Replies: 17
Views: 10,579
Posted By BiGgE

Re: Doug's Headers

Thanks for the info, everybody!
Forum: Engine/Drivetrain/Suspension Parts for Sale
05-01-2009, 10:37 AM
Replies: 6
Views: 617
Posted By BiGgE

Re: 3.27 9 Bolt For Sale (Houston, TX)

$150. Anybody??? I just want the thing out of my garage!
Forum: Engine/Drivetrain/Suspension Parts for Sale
04-30-2009, 05:54 PM
Replies: 6
Views: 617
Posted By BiGgE

3.27 9 Bolt For Sale (Houston, TX)

Everybody, I've got a 3.27 9 bolt out of an 87 GTA for sale. It comes with calipers, hoses, pads, and discs (all in great shape). No sway bar, and no p-brake cables. The rear is in good shape-never...
Forum: Exhaust
04-30-2009, 01:55 PM
Replies: 17
Views: 10,579
Posted By BiGgE

Doug's Headers

Anybody used Doug's Longtubes p/n D3321? These look similar to the Hooker Super Comps, but the flange is thicker, and they are a buch cheaper. Also, it says they work with angled plug heads, can...
Forum: Exterior Parts for Sale
04-26-2009, 09:18 AM
Replies: 16
Views: 857
Posted By BiGgE

Re: 87 GTA Parts For Sale

Ok, I got the rear out yesterday. It is a 3.27. The cones are pretty worn, but it is still really difficult to turn one wheel against the other. The brakes are in great shape.

I am asking 200...
Forum: Exterior Parts for Sale
04-24-2009, 08:07 PM
Replies: 16
Views: 857
Posted By BiGgE

Re: 87 GTA Parts For Sale

Hood is sold. I'll update the particulars of the rear when I get it out tomorrow.
Forum: Exterior Parts for Sale
04-24-2009, 10:22 AM
Replies: 16
Views: 857
Posted By BiGgE

Re: 87 GTA Parts For Sale

It is a bolt on hood. I have a local guy looking at it, and another guy who wants it if he doesnt get it, but if they both fall through, I will let you know.
Forum: Exterior Parts for Sale
04-24-2009, 10:20 AM
Replies: 16
Views: 857
Posted By BiGgE

Re: 87 GTA Parts For Sale

Sorry, not selling a steering wheel.
Forum: Exterior Parts for Sale
04-21-2009, 08:09 PM
Replies: 16
Views: 857
Posted By BiGgE

Re: 87 GTA Parts For Sale

Sorry, I already have a sale pending on the headers.
Forum: Exterior Parts for Sale
04-21-2009, 08:07 PM
Replies: 16
Views: 857
Posted By BiGgE

Re: 87 GTA Parts For Sale

It is the RAII I believe. The more rounded one (I don't know if that is RAI or RAII, but it looks more like the later-model ram air hoods, not the earlier 4'th gen stuff). It is currently in...
Forum: Exterior Parts for Sale
04-20-2009, 06:09 PM
Replies: 16
Views: 857
Posted By BiGgE

Re: 87 GTA Parts For Sale

Sorry, no y-pipe. Just the headers. I believe they are part number 68722. I can confirm when I get back home on Friday.
Forum: Exterior Parts for Sale
04-19-2009, 04:37 PM
Replies: 16
Views: 857
Posted By BiGgE

Re: 87 GTA Parts For Sale

Couple more pictures...
Forum: Exterior Parts for Sale
04-19-2009, 04:33 PM
Replies: 16
Views: 857
Posted By BiGgE

87 GTA Parts For Sale

I've got an 87 GTA that I am going through and have a bunch of parts to get rid of.

I have a bumper cover and fiberglass ram air hood. I'll take 50 bucks or best offer for each. Hood is sold!
...
Forum: Engine Swap
03-10-2009, 08:37 AM
Replies: 12
Views: 655
Posted By BiGgE

Re: Engine Swap+ loseing a bet = dyno

You are correct, you have chrome plated moly rings. This is however, not a chrome-moly ring. There is no such thing as a chrome-moly ring. Chrome-moly (which is actually Chrom-moly) is a material...
Forum: Engine Swap
03-09-2009, 10:41 AM
Replies: 12
Views: 655
Posted By BiGgE

Re: Engine Swap+ loseing a bet = dyno

I am guessing your cam is about .480 lift and maybe 220 duration @ .050. (I wouldn't go any bigger than that with a stock converter) I had a very similar motor in a 1970 Nova for a little while. ...
Forum: Suspension and Chassis
02-11-2009, 12:36 AM
Replies: 2
Views: 622
Posted By BiGgE

Third Gen Camber Curves?

Does anyone know what kind of camber curves our third gens have designed into the suspension?

What I am trying to find out is in stock trim, do we see negative or positive camber gain when...
Forum: Suspension and Chassis
02-09-2009, 05:59 PM
Replies: 1
Views: 655
Posted By BiGgE

Stock Spring Rates?

Anyone know what the factory front and rear spring rates are/were for an 87 GTA?
Forum: Exterior Parts for Sale
02-06-2009, 08:05 AM
Replies: 1,200
Views: 60,323
Posted By BiGgE

Re: third kid on the way all parts and cars for sale,

Ted, I am looking for a stock GTA hood. Do you have one, and how much shipped to Texas (77346). Thanks.
Forum: Exterior Parts for Sale
02-06-2009, 07:34 AM
Replies: 53
Views: 1,749
Posted By BiGgE

Re: Parting Out - Complete / Running 1992 Trans Am GTA

How much for the hood, and would you be willing to ship to TX? ZIP is 77346. I will pay shipping costs. Thanks.
Forum: Exterior Parts for Sale
02-01-2009, 04:24 PM
Replies: 2
Views: 421
Posted By BiGgE

Re: TA/GTA hood for sale

Would you be willing to ship this hood to Texas?
Forum: Exterior Parts for Sale
01-28-2009, 03:42 PM
Replies: 6
Views: 974
Posted By BiGgE

Re: GTA/Trans am parts FS

I am interested in the bumper cover and hood. I live in Humble, TX (near Houston) 77346. Could I get a shipping quote, or do you ever make it down to Dallas for anything? Thanks,

Evan
Forum: Carburetors
03-18-2008, 10:55 PM
Replies: 17
Views: 1,248
Posted By BiGgE

Re: what kind and how big for new stroker

Sounds like most everyone is on the right track-a 750 would be pretty close. I am running a similar set-up (11.2:1 scr and 9.2:1 dcr 388 ci) and I am running a 750 mech. secondary demon. The only...
Forum: Carburetors
03-17-2008, 09:50 PM
Replies: 17
Views: 1,248
Posted By BiGgE

Re: what kind and how big for new stroker

What compression are you running in your stroker? It is impossible to size a carb without knowing how much air it will move...
Forum: South Central Region
03-03-2008, 10:44 PM
Replies: 30
Views: 1,133
Posted By BiGgE

Re: 383 blew up today...

Thats a bad one...did you get lucky and not break the block? I know when I blew mine up, I broke a rod, and took out the block, tweaked the crank, bent 2 valves, took out my cam, took out 2 pistons,...
Forum: South Central Region
03-01-2008, 11:50 PM
Replies: 2
Views: 396
Posted By BiGgE

Rear end?

Anyone have any advice for me?? I am trying to find a housing for my car. Were the factory 10 bolts in the third gens 7.5" ring gears? And if so, are there any other factory GM rear ends that will...
Forum: South Central Region
02-14-2008, 08:33 PM
Replies: 9
Views: 1,443
Posted By BiGgE

Re: GTA Hood

If I can find another hood, I will sell it. I would take 100 bucks for it. Like I say-if I can find another...Let me know.
Showing results 1 to 50 of 67
 
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