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2005 CTS-V
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168 Posts
Discussion Starter #1
I found an '05 CTS-V with hotchkis bars, all BMR's rear end offerings, maggie, corsa exhaust, cold air intake, and that's about it. I picked it up in California last week and am waiting for the shipment back to me here in MI.

My questions are: I question whether the fuel rails and injectors are from the kit. Rails do not seem polished and injectors have a blue band on them. I spoke with the shop that did the install and they said they installed the full magnussen kit. There is a bag in the trunk with stock intake, intake manifold, stock TB/mas air along with the stock engine cover, magnussen manual, and superchips programmer.

The shop said they road tuned it for 91 california gas using an end of pipe 02 sensor.

So, can anyone tell me what color the injectors should be? (I know, search, but I wasn't getting anywhere)

Also, one drivability question: When coming out of vacuum I know the bypass valve is closing, but when cruising and just coming out of vacuum I get a slight squeal noise that almost sounds like a pulley squealing.... I don't think it is, I think it is something with air and the bypass valve. Is this normal or what should I be looking for? It isn't very loud, have to have driver window down to hear. As soon as the valve fully closes, noise is gone.

I'm new to roots superchargers but have been self tinkering with my galant VR4 turbo for several years. I had never heard that before and just wanted to make sure it wasn't something I should be looking at.

Supercharger sounds healthy, no marbles on spool down or idle, and this thing goes like a SOB.

Thanks for any answers, tips, hints, etc.

-PJ Gross
 

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2016 ATS Premium 6-spd MT
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14,060 Posts
First of all, congrats on your new ride.

Second, where in our wonderfully prosperous Great Lake State are you?

Third, my injectors have a blue band around the base like you're talking about. I know that they're Motron 60#, but can't recall the no. off hand.

Finally, I have no squealing sound like you mention except from my rear tires occasionally. Do you really think it might be coming from the bypass valve?

BTW, you may want to get it retuned for 93 RON here in MI. If you're in the Detroit area, there's Wheel to Wheel Powertrain in Troy/Madison Heights and maybe Livernois Motorsports.

If you're near SE Mich, you'll have to meet up with some of us sometime.
 

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2005 CTS-V
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168 Posts
Discussion Starter #3
Great news on the injectors. I feel much better now! I've just been a little paranoid since I've had lots of time to think about my car sitting at my in-laws waiting to be shipped back to Michigan! I will say I have no reason to doubt the previous owner or his shop, both have been very up front and great to answer questions.

I'm in Lake Orion. I have been a long time Impala club member and decided that it was time for a new nice weather driver since my '96 Impala is now a year round daily driver. :(

Is there a local group of people for V's? I would love to get some time at Waterford with it. I know the local Imp SS club used to get time, but I haven't been involved with them since using the SS as a daily driver.

As far as the squeal goes, I'll have to investigate that more. Honestly I'm not sure what I'm hearing, just know it is a slight squeal when coming out of vacuum under very slight throttle input. Not present in full vacuum, cruising, and not present under light acceleration, just right at that transition point.

I'd PM you but can't b/c not enough posts. Definitely would be interested in getting together after my car gets here.

After driving back from the airport in my wife's S60r 6-speed, I know that my first mod to the V will be a short throw shifter to tighten up the sloppy shifting. I didn't know how sloppy it was till I got back in the Volvo. Yikes.

Need to search for shifter upgrades!

Thanks,
PJ
 

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2016 ATS Premium 6-spd MT
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14,060 Posts
I grew up in Rochester, Adams Rd and Walton Blvd area. Lived there most of my life. There's no local group in a formal sense (I'd like to see us move towards something sometime in the future, though). We meet informally two or three times a year. Early in May, we met at Baker's in Milford ... more than a dozen were notified, but ended up being five of us (ronr in Linden, Den_93 and JD03Cobra in or near Bloomfield Hills, and Bigron in Southfield). There's several other guys around here as well plus Windsor, Ypsilanti, and Toledo. We had been talking about the Hot Rod Power Tour at Metro Beach this coming Tuesday, but probably only Den_93 will be there; suppose to rain, and my car ain't gettin' wet. :D Next up might be a trip to Milan in late July/early August then of course the Dream Cruise in mid August ... this assumes we don't try for something sooner. Heck, maybe we should!?!

Waterford Hills is pretty tight for our cars, you think? I've been there a couple of times to watch. Could be fun.

You DEFINITELY need a shifter. I love my B&M, most love their UUC, and others swear by their Katech or TPIS. It'll transform your car. You need to drive someone's. Ronr has a UUC, Bigron has a B&M, and I think JD03Cobra has a B&M. Can't remember about Den_93.
 

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'06 Z06, '05 CTS-V 453rwhp/434rwtq (sold)
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:welcome:

Like Randy said, if you have the black injectors with blue bands, they're 60#ers.

I don't recall anyone complaining about the squealing sound you're getting. The only parts that are moving during the valve opening closing is the valve itself and the actuator control on the driver side (the black cylinder). The arm doesn't move much and I doubt it caused the squeaking you're hearing, but it's worth taking a look I guess. You can move it with your hand to see if it makes any noise.

Take a close look at the drive belt's condition. You may want to change it anyway just to make sure it's in top shape. Recommended belt is a Goodyear Gatorback part # 4061037.

You made a smart choice buying a maggied V. :yup:
 

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'05 CTS-V, '00 SLS, 98 SLS, 89 Eldo, '80 Eldo
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It's usually the same four guys answering the Maggie threads,,,sorry I'm late, had my head buried in the HPTuners forum for the past week :cool:
OP, you said the original TB is in the trunk? Do you know what they replaced it with? Don't some LS2 guys get whistling from the TB?
 

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:welcome:

Your going to love the maggied V.
 

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CTS-V
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127 Posts
Welcome!!! You will have fun with the V!! Get ready to spend some money on this forum!! Haha

It's usually the same four guys answering the Maggie threads,,,sorry I'm late, had my head buried in the HPTuners forum for the past week :cool:
OP, you said the original TB is in the trunk? Do you know what they replaced it with? Don't some LS2 guys get whistling from the TB?
I have a LS2 and I had whistling from the TB for awhile because magnus forgot to include the gasket that goes between the TB and Maggie. All fix now.
 

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2005 CTS-V
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168 Posts
Discussion Starter #10
Whistling is gone before any positive manifold pressure is made. Should I be changing the rear belt on the supercharger itself, too? Is that a difficult belt to change? I did notice some wear in the center of that belt (lettering rubbed off in the middle).

-PJ
 

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2016 ATS Premium 6-spd MT
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14,060 Posts
That whistling sort of sounds like a vac leak if it goes away as you say as the vac is reduced down close to atmospheric pressure.

Not sure how easy/difficult that rear belt would be to change. Seems pretty tight on there not to mention you'd have to remove it to get at it. I'd just do the front belt and keep the one you have on there as a spare. If I recall correctly, they run about thirty bucks. Several of us also carry a 15 mm wrench with us, too, to relieve tension on the idler pulley toge the belt off just in case the belt self destructs while you're out doing errands.
 

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'06 Z06, '05 CTS-V 453rwhp/434rwtq (sold)
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I have a LS2 and I had whistling from the TB for awhile because magnus forgot to include the gasket that goes between the TB and Maggie. All fix now.
Interesting. That is worth a check.

Whistling is gone before any positive manifold pressure is made. Should I be changing the rear belt on the supercharger itself, too? Is that a difficult belt to change? I did notice some wear in the center of that belt (lettering rubbed off in the middle).

-PJ
The rear belt can only be changed by pulling the maggie off, and like Randy said, even then I'm not even sure the best way to go about it. If it looks like it doesn't have any fraying or parts missing, then I would let it go for now. I would recommend, however, running your hand behind it to check clearance with everything running along the firewall. I also use a small mirror every once in a while to make sure there is still plenty of clearance (~1/2") from the hoses and wires that I have running behind the rear pulleys.
 

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escalade
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Whistling is gone before any positive manifold pressure is made. Should I be changing the rear belt on the supercharger itself, too? Is that a difficult belt to change? I did notice some wear in the center of that belt (lettering rubbed off in the middle).

-PJ
Welcome!..You can check the rear belt for residue,there is a adjustment to tighten the rear belt,simple to do but the blower has to be off on the gto,and probaly the ctsv as well.
 
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