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Old 03-31-2007   #41
HARRYS91GTASLP
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Re: Bad vibration when down shifting

Quote:
Originally Posted by MunsonGTA
fred is totally correct on this. it's alot cheaper to buy a $50 tranny cooler then to buy a whole new tranny. i put one on my car but i think i went too big, the car runs alot hotter now. I believe i only paid about 80 for mine, but it's pretty big, and a name brand. the first one i had was from summit, it was summit brand and only 30 bucks. and also make sure you don't get one that is setup for AN fittings, i did that the first time on accident.
Munson, I just checked my car, and there's a small radiator in front of the large, engine coolant radiator. There are two(2) fans on the engine side of the engine coolant radiator.

Question: Is the small radiator in front of the cooalnt radiator an aftermarket Transmission Radiator/Cooler? I had my Transmission flushed the other day, and I noticed that the mechanic had the machine hooked up to the same hoses at the front of the car.

My RPO sheet only shows one(1) cooler at manufacture, RPO code KC4 COOLING SYSTEM, ENGINE OIL

My RPO sheet does not have the RPO code KD1 COOLING SYSTEM, TRANS OIL showing as installed.
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Old 03-31-2007   #42
HARRYS91GTASLP
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Re: Bad vibration when down shifting

Quote:
Originally Posted by MunsonGTA
i've never heard of anybody having to move LCA brackets from adjusting a panhard bar.
Munson, correct me if I'm wrong, but the Control Arms have two(2) attachment points: The front bracket attaches to the frame of the car, and the rear bracket attaches to the Axle, correct? If that is true, and extending or shortening the length of the panhard bar moves the body right or left, then the control arms would prevent the body from moving, correct?
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Old 03-31-2007   #43
HARRYS91GTASLP
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Re: Bad vibration when down shifting

Quote:
Originally Posted by HARRYS91GTASLP
Munson, correct me if I'm wrong, but the Control Arms have two(2) attachment points: The front bracket attaches to the frame of the car, and the rear bracket attaches to the Axle, correct? If that is true, and extending or shortening the length of the panhard bar moves the body right or left, then the control arms would prevent the body from moving, correct?
Here's a pic of a typical installation of the control arms in the rear showing what I described above. I don't see how I could move the body if the control ams are installed.

<img src=http://i98.photobucket.com/albums/l268/ukharry/controlarms.jpg />
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Old 03-31-2007   #44
HARRYS91GTASLP
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Re: Bad vibration when down shifting

Quote:
Originally Posted by HARRYS91GTASLP
Munson, I just checked my car, and there's a small radiator in front of the large, engine coolant radiator. There are two(2) fans on the engine side of the engine coolant radiator.

Question: Is the small radiator in front of the coolant radiator an aftermarket Transmission Radiator/Cooler? I had my Transmission flushed the other day, and I noticed that the mechanic had the machine hooked up to the same hoses at the front of the car.

My RPO sheet only shows one(1) cooler at manufacture, RPO code KC4 COOLING SYSTEM, ENGINE OIL

My RPO sheet does not have the RPO code KD1 COOLING SYSTEM, TRANS OIL showing as installed.
I checked the Firebird Service Manual, and it mentioned that all Automatics have a small transmission oil radiator near the right end of the coolant radiator (on the driver's right).

As I stated in the previous post, the mechanic had the flush machine hooked up to hoses at the front of the car. I'm cool!
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Old 03-31-2007   #45
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GTA Year: 1991
GTA Engine: 350 TPI Automatic
Re: Bad vibration when down shifting

Yes, but you need to run a separate trans cooler, still and in line as well. Thats the way I ran mine. I will post up some info or a link tomorrow. It real easy. I think I bought a B&M one.
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1991 GTA Trans Am
w/305,231 miles
on the original motor!!!!
Time of Death on motor, 4:07pm on 05/29/2010.
Hp:211.2@4200rpms/Tq.328.5@2700rpms
Best et: 13.959@97.05mph
Best mph: 98.3
Best 60' : 1.875 on BFG Comp TA's w/ 32 lbs of air in them
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Old 03-31-2007   #46
HARRYS91GTASLP
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Re: Bad vibration when down shifting

Quote:
Originally Posted by fearthisgta
Yes, but you need to run a separate trans cooler, still and in line as well. Thats the way I ran mine. I will post up some info or a link tomorrow. It real easy. I think I bought a B&M one.
Thanks, Cliff! I look forward to seeing the info.
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Old 03-31-2007   #47
gtayumiko
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Re: Bad vibration when down shifting

Quote:
Originally Posted by HARRYS91GTASLP
Question: Is the small radiator in front of the cooalnt radiator an aftermarket Transmission Radiator/Cooler?

KC4 COOLING SYSTEM, ENGINE OIL

My RPO sheet does not have the RPO code KD1 COOLING SYSTEM, TRANS OIL showing as installed.
The small radiator in front of the coolant radiator is the air conditioning condensor. But there is a possibility that perhaps someone who previously owned your car before you did, could have removed that condensor and put in an aftermarket transmission cooler. That is a possibility. If you take a good photograph of this component and post it, we will be able to tell if it is the condensor or something aftermarket for the cooler. In most applications, the transmissions cooling takes place by sharing the same coolant radiator. On my GTA (1987 350 automatic), the transmissions cooling lines are on the passenger side of the engine and they connect into the engine coolant radiator that is on the passenger side. The radiator has an internal separate chamber that keeps the transmissions fuid separated from the engine coolant. I am unsure if this is a great design or not. Seems when my transmissions was about to fail, the transmissions would overheat and this would in turn cause the engine to run much hotter then normal.

And KC4 is only a very small component that fits between the actuall oil filter and the bottom of the engine block. Two water hoses are also attached to this component. Water just flows through this component to cool off the engine oil. Yumiko
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Last edited by gtayumiko; 03-31-2007 at 11:59 PM.
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Old 04-01-2007   #48
gtayumiko
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Re: Bad vibration when down shifting

KC4 only means that small component between the oil filter and the bottom of the engine block, it does not mean a system like what most aftermarket coolers are made up of, which are flat like a radiator and placed in a location for maximum ventilation. Yumiko
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Old 04-01-2007   #49
HARRYS91GTASLP
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Re: Bad vibration when down shifting

Quote:
Originally Posted by gtayumiko
KC4 only means that small component between the oil filter and the bottom of the engine block, it does not mean a system like what most aftermarket coolers are made up of, which are flat like a radiator and placed in a location for maximum ventilation. Yumiko
Yumiko, thanks for your assistance. After looking again, the unit is the A/C condenser. After hearing more from Cliff, I will probably consider a TCI Breakaway Torque Converter and one of the Radiators at the following link: http://www.tciauto.com/Products/Cooling/

Here's an example of a typical set-up:


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Old 04-01-2007   #50
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GTA Year: 1991
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Re: Bad vibration when down shifting

Well, I thought they may have it online buuuut, I guess not. I will take a pic this am and post it so you can see what I am talkin about.
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Cliff Jones
1991 GTA Trans Am
w/305,231 miles
on the original motor!!!!
Time of Death on motor, 4:07pm on 05/29/2010.
Hp:211.2@4200rpms/Tq.328.5@2700rpms
Best et: 13.959@97.05mph
Best mph: 98.3
Best 60' : 1.875 on BFG Comp TA's w/ 32 lbs of air in them
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Old 04-01-2007   #51
MunsonGTA
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GTA Year: 1987
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Re: Bad vibration when down shifting

that universal tranny cooler part # 820500 on their website is basically the same thing i have on my car. my cooler is slightly larger though, same 3/4" thickness, but i believe mine is 9"x18". and definitely go with the universal cooler, those high performance coolers are setup for AN lines.

the converter is up to you, i would personally go with a street edge converter for 525 and get a 2400 or 2600 stall.
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11.16 at 123 mph.
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Old 04-01-2007   #52
MunsonGTA
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Re: Bad vibration when down shifting

here is the cooler i bought, it's actually too large i think. since i installed it my car runs hotter then it used to, espically during warm days.

http://store.summitracing.com/partde...5&autoview=sku
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87 GTA: Forged 408 LSX short block, TEA stage 2 cnc ported 243 heads, BTR Stage 3 stroker cam, Fast 102 intake, NW 102 TB, Longtube headers, custom 411 ECM, custom harness, custom tuned, Performabuilt stage 2 4l60E with PTC 2800 stall, 9 bolt rear with 3.70 gears and TAP girdle.

11.16 at 123 mph.
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Old 04-01-2007   #53
MunsonGTA
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Re: Bad vibration when down shifting

Quote:
Originally Posted by HARRYS91GTASLP
Munson, correct me if I'm wrong, but the Control Arms have two(2) attachment points: The front bracket attaches to the frame of the car, and the rear bracket attaches to the Axle, correct? If that is true, and extending or shortening the length of the panhard bar moves the body right or left, then the control arms would prevent the body from moving, correct?
you are correct about the attachment points. i've just never heard of anybody having to reweld the lca brackets on the axle side from adjusting the panhard bar. maybe you should do a search over at thirdgen.org and see what those guys have to say about it.
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87 GTA: Forged 408 LSX short block, TEA stage 2 cnc ported 243 heads, BTR Stage 3 stroker cam, Fast 102 intake, NW 102 TB, Longtube headers, custom 411 ECM, custom harness, custom tuned, Performabuilt stage 2 4l60E with PTC 2800 stall, 9 bolt rear with 3.70 gears and TAP girdle.

11.16 at 123 mph.
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Old 04-01-2007   #54
HARRYS91GTASLP
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Re: Bad vibration when down shifting

Quote:
Originally Posted by MunsonGTA
you are correct about the attachment points. i've just never heard of anybody having to reweld the lca brackets on the axle side from adjusting the panhard bar. maybe you should do a search over at thirdgen.org and see what those guys have to say about it.
I guess what I'm asking is:

Would I be able to get away with loosening the control arm hardware to adjust the panhard bar then tighten the control arm hardware? I guess I'm thinking that the the 1" movement of the body to the right would result in the front-to-back alignment of the control arms to be off by that much.
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Old 04-01-2007   #55
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Re: Bad vibration when down shifting

Here's a nice pic of what I will plan on doing with an add-on cooler:

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Old 04-01-2007   #56
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GTA Year: 1991
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Re: Bad vibration when down shifting

^ thats the way I did mine. Here are the pics. Sorry it took soooo long. My sister had her 1st baby Friday and so I have been a little side tracked.
But here they are.............







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Cliff Jones
1991 GTA Trans Am
w/305,231 miles
on the original motor!!!!
Time of Death on motor, 4:07pm on 05/29/2010.
Hp:211.2@4200rpms/Tq.328.5@2700rpms
Best et: 13.959@97.05mph
Best mph: 98.3
Best 60' : 1.875 on BFG Comp TA's w/ 32 lbs of air in them
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Old 04-01-2007   #57
HARRYS91GTASLP
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Re: Bad vibration when down shifting

Quote:
Originally Posted by fearthisgta
^ thats the way I did mine. Here are the pics. Sorry it took soooo long. My sister had her 1st baby Friday and so I have been a little side tracked. But here they are.............
Nice set-up, Cliff. The only thing I don't like is that you have to push the four(4) nylon bolts through the engine radiator. But, I guess if eveyone else is doing it, then it can't be an issue. Thanks!
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Old 04-01-2007   #58
FearThisGTA
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GTA Year: 1991
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Re: Bad vibration when down shifting

Yeah, I know. Trust me I didnt like doin it either and I held my breath when I did it. It did make sure those things were tight though.
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Cliff Jones
1991 GTA Trans Am
w/305,231 miles
on the original motor!!!!
Time of Death on motor, 4:07pm on 05/29/2010.
Hp:211.2@4200rpms/Tq.328.5@2700rpms
Best et: 13.959@97.05mph
Best mph: 98.3
Best 60' : 1.875 on BFG Comp TA's w/ 32 lbs of air in them
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