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scott in wa.
Member
Joined: 10 Aug 2005
Posts: 660
Location: puyallup wa.
1988 Chevrolet Camaro IROC-Z
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 Posted: Wed Aug 23, 2006 8:14 am Post subject: MSD |
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So I have a few more questions.
88 iroc vert stealth ram intake, speed density.
What MSD ignition do I need? 6al??? what about the coil?
Also do I have a short or long water pump?
87, z28.
thanks
scott |
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Twilightoptics
Hardcore (12sec Club)
Joined: 13 Jan 2004
Posts: 9191
Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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| Posted: Wed Aug 23, 2006 8:22 am Post subject: Re: MSD |
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| scott in wa. wrote: | So I have a few more questions.
88 iroc vert stealth ram intake, speed density.
What MSD ignition do I need? 6al??? what about the coil?
Also do I have a short or long water pump?
87, z28.
thanks
scott |
You can use any MSD box for GM stuff... but the 6AL is a great box. Has a rev limiter you can put in different chips or "pills" from MSD to change the limit.
You can use your factory coil but you need an adapter. I recommend using the Jacobs Ultra Coil.. it's like $65 from summit and very easy to use. I think I used mine still with the GM late model coil adapter... but you should be able to just straight wire it in without the adapter.
You have a long waterpump. |
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Dewey316
The Lama
Joined: 08 Jan 2004
Posts: 7295
Location: Bringing the tech
1990 Chevrolet Camaro RS
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| Posted: Wed Aug 23, 2006 8:23 am Post subject: |
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Scott,
The 6AL will work, IIRC MSD has a wire hrness adapter (I think it is part# 8877). MSD also makes a specific coil for our cars part #8226 (Link Here.
As for the water pump. Yours is a long style. But, it is a reverse turning one, because of the serp belt, it turns backwards. You need to get an 88-92 specific waterpump. This really limits your aftermarket options, if you are looking for an aftermarket pump. I think Stewart makes one, but don't quote me on that. |
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QwkTrip
11sec Club
Joined: 17 Feb 2004
Posts: 3942
Location: Peoria, IL
1989 Pontiac Firebird
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| Posted: Wed Aug 23, 2006 8:24 am Post subject: |
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| What year did the water pump go to reverse rotation? |
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Twilightoptics
Hardcore (12sec Club)
Joined: 13 Jan 2004
Posts: 9191
Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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| Posted: Wed Aug 23, 2006 8:31 am Post subject: |
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| Dewey316 wrote: | Scott,
The 6AL will work, IIRC MSD has a wire hrness adapter (I think it is part# 8877). MSD also makes a specific coil for our cars part #8226 (Link Here.
As for the water pump. Yours is a long style. But, it is a reverse turning one, because of the serp belt, it turns backwards. You need to get an 88-92 specific waterpump. This really limits your aftermarket options, if you are looking for an aftermarket pump. I think Stewart makes one, but don't quote me on that. |
Forgot about you serp guys.
My luck and Mike's luck with the MSD GMII coil was better than stock... but when we went to the Jacobs per Master B's recommendation.... neither of us have fouled a plug!
I remember that my Dad has the MSD 6AL and that we wired his coil (same posts as the jacobs) without any adapter. MSD has VERY good instructions too. Was quite impressed. |
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scott in wa.
Member
Joined: 10 Aug 2005
Posts: 660
Location: puyallup wa.
1988 Chevrolet Camaro IROC-Z
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| Posted: Wed Aug 23, 2006 8:44 am Post subject: water pump |
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Thanks for this info..Iam going to order the msd
On the water pump.
The entire engine is out of the 87z28 It has a serpentine belt but it goes around the crank, alternator, and water pump only.
There are v belt groves for all the other stuff.
Is the still a reverse direction water pump??
Thanks
Scott |
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Twilightoptics
Hardcore (12sec Club)
Joined: 13 Jan 2004
Posts: 9191
Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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| Posted: Wed Aug 23, 2006 8:46 am Post subject: Re: water pump |
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| scott in wa. wrote: | Thanks for this info..Iam going to order the msd
On the water pump.
The entire engine is out of the 87z28 It has a serpentine belt but it goes around the crank, alternator, and water pump only.
There are v belt groves for all the other stuff.
Is the still a reverse direction water pump??
Thanks
Scott |
That is NOT a reverse flow waterpump. It's a standard... you need to make sure if you buy one that's not OEM that it has the proper accessory bolt holes/brackets.
That is the same setup that I have. |
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Dewey316
The Lama
Joined: 08 Jan 2004
Posts: 7295
Location: Bringing the tech
1990 Chevrolet Camaro RS
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| Posted: Wed Aug 23, 2006 8:51 am Post subject: |
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| QwkTrip wrote: | | What year did the water pump go to reverse rotation? |
When they switched to serp belts in 88.
| Twilightoptics wrote: | | That is NOT a reverse flow waterpump. |
None of thse are reverse FLOW, but 88-92 were reverse ROTATION, because of the routing of the serp belts, it turns the other direction, but flow is still the same. |
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scott in wa.
Member
Joined: 10 Aug 2005
Posts: 660
Location: puyallup wa.
1988 Chevrolet Camaro IROC-Z
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Twilightoptics
Hardcore (12sec Club)
Joined: 13 Jan 2004
Posts: 9191
Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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| Posted: Wed Aug 23, 2006 3:06 pm Post subject: |
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Flow, direction same thing.
I cannot possible understand how you can turn the impellar a different direction but have the reverse direction of flow.
Either way I think he gets it.
Yeah that's the Jacobs alright. |
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Dewey316
The Lama
Joined: 08 Jan 2004
Posts: 7295
Location: Bringing the tech
1990 Chevrolet Camaro RS
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| Posted: Wed Aug 23, 2006 3:11 pm Post subject: |
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| Twilightoptics wrote: | | I cannot possible understand how you can turn the impellar a different direction but have the reverse direction of flow. |
You change the direction of the impellers. Then when you spin them the other direction, the flow goes the same direction. |
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Al Hasse
Member
Joined: 19 Nov 2005
Posts: 4379
Location: Bremerton, WA
1992 Chevrolet Camaro RS
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| Posted: Wed Aug 23, 2006 7:13 pm Post subject: |
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| I think John is trying to say the pitch of the impellers is changed to keep the flow in the same direction with reverse rotation. Same priciple as boats with counter-rotating screws (propellers), they push water the same direction while rotating opposite directions. |
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QwkTrip
11sec Club
Joined: 17 Feb 2004
Posts: 3942
Location: Peoria, IL
1989 Pontiac Firebird
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| Posted: Wed Aug 23, 2006 9:01 pm Post subject: |
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| Twilightoptics wrote: | | Flow, direction same thing. |
Not so, young Jedi. Reverse rotation means that the pump must be spun in the opposite direction (CW vs. CCW) to pump fluids through the engine in the same direction. It is a function of belt routing.
Reverse flow means that the coolant routing would be in the opposite direction as normal. Kind of like LT1 cars vs. TPI cars. LT1 are generally called reverse flow because coolant passes through the cylinder heads first and then to the engine block. TPI cars use conventional method of cooling the engine block first and then the cylinder heads. Or is it the other way around? Anyway, my point is still valid.  |
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Twilightoptics
Hardcore (12sec Club)
Joined: 13 Jan 2004
Posts: 9191
Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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| Posted: Thu Aug 24, 2006 8:24 am Post subject: |
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| QwkTrip wrote: | | Twilightoptics wrote: | | Flow, direction same thing. |
Not so, young Jedi. Reverse rotation means that the pump must be spun in the opposite direction (CW vs. CCW) to pump fluids through the engine in the same direction. It is a function of belt routing.
Reverse flow means that the coolant routing would be in the opposite direction as normal. Kind of like LT1 cars vs. TPI cars. LT1 are generally called reverse flow because coolant passes through the cylinder heads first and then to the engine block. TPI cars use conventional method of cooling the engine block first and then the cylinder heads. Or is it the other way around? Anyway, my point is still valid. |
I know. |
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scott in wa.
Member
Joined: 10 Aug 2005
Posts: 660
Location: puyallup wa.
1988 Chevrolet Camaro IROC-Z
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scott in wa.
Member
Joined: 10 Aug 2005
Posts: 660
Location: puyallup wa.
1988 Chevrolet Camaro IROC-Z
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| Posted: Tue Aug 29, 2006 4:19 am Post subject: well |
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Is this or will this work with the jacobs coil?
ists a little different than the 6al, but will it work, looks like it stores the energy at each fireing of the coil.
scott |
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chevymad
Master B
Joined: 11 Jan 2004
Posts: 5474
1987 Pontiac Formula
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| Posted: Tue Aug 29, 2006 9:40 am Post subject: |
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Any ignition box will work with the jacobs coil just fine. I've used both the msd6a and the mallory digital6. I've also used stock hei, both large and small cap. A friend ran the complete jacobs setup. It was an older unit and didnt impress me that much. The only ignitions that I know of that will NOT work with the ultra coil are points or point replacements. If the ignition requires a ballast resistor, it will not work. The jacobs has too small a resistance and it will overheat the resistor. I also found it will weld points solid in about 3 car lengths....  I lost an accell module with a replacement 2 weeks away. Was trying to get my truck home, so I dropped a point distributor in.. didnt get me far. The jacobs coil I have on the car I bought in 93 or 4. It's been a tough unit. |
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RSFreak
The other "John"
Joined: 23 Jan 2004
Posts: 2946
Location: Renton
1989 Chevrolet Camaro RS
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| Posted: Sun Sep 03, 2006 6:42 pm Post subject: |
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I've used the MSD 6A and Mallory VI-A and both performed well (the MSD on my '85 Z and the Mallory on my '91 RS and the same unit on my '84 Z). For my current RS, I'm gonna get the MSD 6AL so I can have the rev limiter. Anyone want a slightly used Mallory box? 
_________________
'86 Trans Am - 5.0L TPI - LT1 cam - 700R4 - WS6
'85 Camaro Berlinetta - IROC clone
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