my LSx 87 IROC build
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Joined: Jun 2005
Posts: 691
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From: Owasso, OK
Car: 87 iroc
Engine: 410 sbc
Transmission: tremec 3550
Axle/Gears: 30 spline 3.73
Re: my LSx 87 IROC build
picked up a heater control valve
ill be installing it tomorrow. also found a (full port ball valve) to open and close the vacuum that will control the heater control valve. p.n 5930 .
which will help my ac run more effectively.
this valve i picked up allows me to open and close the vaccum.
i wasnt able to integrate it to the 4th gen controls other wise i think it would be nice.
i am also looking for a new exhaust set up that i have in mind ill be sticking with my exhaust manifolds for now.
heres a pic of me and z28fast1

ill be installing it tomorrow. also found a (full port ball valve) to open and close the vacuum that will control the heater control valve. p.n 5930 .
which will help my ac run more effectively.
this valve i picked up allows me to open and close the vaccum.
i wasnt able to integrate it to the 4th gen controls other wise i think it would be nice.
i am also looking for a new exhaust set up that i have in mind ill be sticking with my exhaust manifolds for now.
heres a pic of me and z28fast1

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Joined: Jul 2009
Posts: 344
Likes: 7
From: Danville, KY
Car: 1988 IROC-Z
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.73
Re: my LSx 87 IROC build
wow, unbelievable. grats to you for awesome car. do you have anymore pics of the grey camaro? im interested in a grey color but aint sure yet.
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
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From: Mentone, CA
Car: 91 Z28
Engine: 355
Transmission: 5 speed
Axle/Gears: 10 bolt 3.73's
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Re: my LSx 87 IROC build
updates
ive been testin out my car
ran cammed s/c mustang freeway roll .
i love this tranny!
i have no traction off the dig though .
any sales on lcas?
i also added a new steering gear i highly reccommend these 21 year old cars to get that changed
ordered a new evap for the ac..
temperatures in cali are at 100 +
and my ac is decent but i dont thtink my used evap is helping out
im interested in fillin in the holes on the ends of the dash board
and recreating my rear lip to a taller one.
ive been testin out my car
ran cammed s/c mustang freeway roll .
i love this tranny!
i have no traction off the dig though .
any sales on lcas?
i also added a new steering gear i highly reccommend these 21 year old cars to get that changed
ordered a new evap for the ac..
temperatures in cali are at 100 +
and my ac is decent but i dont thtink my used evap is helping out
im interested in fillin in the holes on the ends of the dash board
and recreating my rear lip to a taller one.
Joined: Sep 2005
Posts: 6,258
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: my LSx 87 IROC build
When you say steering gear are you talking about a new gear box? I read an article in Camaro Performers where they put a new quick-ratio box in an IROC-Z and said it did wonders for the car. I'd like to do something like that but the expense is a bit on the steep end, and way down the list of things I want/need to get the swap done.
As far as sales on LCA's, there is a sponsor on LS1Tech.com, "Byunspeed", their website is www.byunspeed.com They've got a sale going on with free shipping on orders over $99. I actually just purchased my tubular K-member through them and it was $485 with free shipping. Not bad if you ask me...
As far as sales on LCA's, there is a sponsor on LS1Tech.com, "Byunspeed", their website is www.byunspeed.com They've got a sale going on with free shipping on orders over $99. I actually just purchased my tubular K-member through them and it was $485 with free shipping. Not bad if you ask me...
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From: 39.84N 105.11W
Car: '89 Trans Am GTA
Engine: WAS 350 - now L92 (alum. 378/6.2L)
Transmission: WAS 700R4, now a built T56
Axle/Gears: 3.27 9-bolt
Re: my LSx 87 IROC build
Originally Posted by BlueZee28
As far as sales on LCA's, there is a sponsor on LS1Tech.com, "Byunspeed", their website is...
Last edited by V8Rumble; Sep 3, 2009 at 11:05 PM. Reason: Fixed the link
Joined: Sep 2005
Posts: 6,258
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: my LSx 87 IROC build
I don't have any complaints from him (at this time anyway). He's even offered me $20 for every person that buys from him that mentions my name. And he said any time I want to start a group purchase to just give him a ring and he's sure he can work something out. I should have my k-member next week around the 8th or 9th. When it gets here I'll be sure to post up.
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Re: my LSx 87 IROC build
i ordered my lcas and relocation brackets.
evap is taking forever to get here.
i also have a few videos to show you guys.
if you guys are interested
evap is taking forever to get here.
i also have a few videos to show you guys.
if you guys are interested
Last edited by TPI TERR; Sep 13, 2009 at 07:00 PM.
Joined: Sep 2007
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From: Crestview, FL.
Car: 1989 IROC-Z, 1979 Malibu Classic
Engine: LSx 5.3
Transmission: MN12 6-speed, 4L60E
Axle/Gears: 4th gen 3.42
Thread Starter
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Member
Joined: Dec 2005
Posts: 268
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From: Owensboro, Ky
Car: 1987 Iroc-Z28
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: G92 3.23, G80, J65 disc
Re: my LSx 87 IROC build
this is "just" an 02 SS motor with a 06 GTO tranny and a LS7 clutch, wth how i dont get it, im stunned, speechless keep killin man jeesh. Its time for me to get a better job and build me one! Thread Starter
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Re: my LSx 87 IROC build
cleaned her up the other day

it needs a dyno tune and ill get some hidden power out of it
the exhaust is very quiet. so i might change the cat back to open up a bit.

it needs a dyno tune and ill get some hidden power out of it
the exhaust is very quiet. so i might change the cat back to open up a bit.
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From: M.D
Car: 1987 Camaro
Engine: 350 hsr
Transmission: 700R4(blown)
Axle/Gears: 3:73
Re: my LSx 87 IROC build
very very nice man, only if my car looks as good as yours.......and as clean.... stupid cluttered engine bay
Joined: Sep 2005
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: my LSx 87 IROC build
Sweet vids! I really like the one against the Z06 haha
So what exactly did the Cobra have that allowed it to scream ahead at the end of that last video? A huge shot of the giggle juice?
So what exactly did the Cobra have that allowed it to scream ahead at the end of that last video? A huge shot of the giggle juice?
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Re: my LSx 87 IROC build
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Re: my LSx 87 IROC build
umi lcas and relocation brackets got installed
i feel a lot less wheel hop going on the roll
final test will be off the line.
i still feel a drag to the right side. not sure what it is but it might be alignment.
my rear is even now as well. i think my stock lcas were bent and gave it a uneven drop



i feel a lot less wheel hop going on the roll
final test will be off the line.
i still feel a drag to the right side. not sure what it is but it might be alignment.
my rear is even now as well. i think my stock lcas were bent and gave it a uneven drop



Last edited by TPI TERR; Sep 17, 2009 at 02:50 PM.
Joined: Sep 2005
Posts: 6,258
Likes: 6
From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: my LSx 87 IROC build
Yikes. Are you assuming the power of the new drivetrain bent them, or something else? That makes me want to push new control arms closer to the top of my "needs" list.
Member
Joined: Dec 2005
Posts: 268
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From: Owensboro, Ky
Car: 1987 Iroc-Z28
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: G92 3.23, G80, J65 disc
Re: my LSx 87 IROC build
are those UMI LCA's thicker then the ones that Spohn offers, i have the Spohn and those look like there beefier.
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Re: my LSx 87 IROC build
ive heard both bad and good about the tubular lcas.
spohn has the squared boxed lcas i think umi does too, not too sure. i ordered these on umis labor day special .
Joined: Sep 2005
Posts: 6,258
Likes: 6
From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: my LSx 87 IROC build
Uhhh, not to be too much of a downer, but it might not be a bad idea to be careful there...
Hey I just wanted to update you on that purchase I made because I said I would.
I bought my Spohn k-member through Byunspeed on Sept. 1st, they billed it out. It didn't get shipped out until the 11th, but I believe that was mostly on Spohn's shoulders because I believe that they require like 8 days before they have to ship them because of the custom nature of the part. I called Byunspeed anyways just to check up on it, and they had it shipped on the 11th, and it arrived yesterday on the 17th. It would have been here sooner but they made a small mistake by getting my ZIP wrong so it delayed it an extra day. Over all, I was happy. I didn't mind waiting a few extra days because the shipping was free. +1 in my book.
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Posts: 1,298
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From: Norfolk VA
Car: 85 Camaro IROC
Engine: 5.7 TPI
Transmission: 700-R4
Axle/Gears: open rear, 3.42 gears
Re: my LSx 87 IROC build
my guess is that someone tried to jack from the LCA's and that bent them...
lots of wheel hop could do it too i suppose.
if it were me, i would have gotten the rod ended LCA's instead of the urethane ended ones because supposedly the urethane ends can cause some weird handling issues if you want to do anything other than drag racing.
honestly, without knowing a lot more detail you cannot simply say boxed or tubular is stronger.
the beefiest ones are solid blocks of aluminum found at metco
http://www.metcomotorsports.com/prod...CA0008&cat=113
the weakest ones are the stock ones.
anything else falls somewhere inbetween and will do just fine as far as strength goes.
lots of wheel hop could do it too i suppose.
if it were me, i would have gotten the rod ended LCA's instead of the urethane ended ones because supposedly the urethane ends can cause some weird handling issues if you want to do anything other than drag racing.
honestly, without knowing a lot more detail you cannot simply say boxed or tubular is stronger.
the beefiest ones are solid blocks of aluminum found at metco
http://www.metcomotorsports.com/prod...CA0008&cat=113
the weakest ones are the stock ones.
anything else falls somewhere inbetween and will do just fine as far as strength goes.
Joined: Sep 2005
Posts: 6,258
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: my LSx 87 IROC build
I've never heard of those metco control arms before.
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Re: my LSx 87 IROC build
keeping my build alive.
winter is near. my ac worked great!
so is my heater
had my car detailed today.
took some pics




no track times yet. i don't think ill break anything but it doesn't have a full tune. and im thinking of going with a new exhaust set up from the y pipe and back .
some sticky tires would help out as well.
winter is near. my ac worked great!
so is my heater

had my car detailed today.
took some pics




no track times yet. i don't think ill break anything but it doesn't have a full tune. and im thinking of going with a new exhaust set up from the y pipe and back .
some sticky tires would help out as well.
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Re: my LSx 87 IROC build
finally got the car tuned at cms in lake elsinore, ca.
got some good results for just a cold air intake and ported tb.
my restrictions are the manifolds
but i was pretty impressed.



definately worth it.
and 365.8 tq
more pics to come
as well.
got some good results for just a cold air intake and ported tb.
my restrictions are the manifolds
but i was pretty impressed.



definately worth it.
and 365.8 tq
more pics to come
as well.
Last edited by TPI TERR; Oct 29, 2009 at 07:35 PM.
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Re: my LSx 87 IROC build
so i did a little upgrade. and i really liked it.
i am now running a new exhaust. and it opened up the car pretty darn good especially through exhaust manifolds.



and ill be runing new exhaust tips when i get a chance.
lmk what u guys think ?
i am now running a new exhaust. and it opened up the car pretty darn good especially through exhaust manifolds.



and ill be runing new exhaust tips when i get a chance.
lmk what u guys think ?
Last edited by TPI TERR; Mar 21, 2010 at 09:39 PM.
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From: Ontario, Canada
Car: 1991 Trans Am GTA
Engine: LSX (swapping)
Transmission: 4L60E (swapping)
Axle/Gears: 2.73 Posi 10 Bolt
Re: my LSx 87 IROC build
I think they are off center but they look cool. Will be awesome with those tips.
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Re: my LSx 87 IROC build
yeah they are. im ganna take off about 2 or 3 inches from the center on the drivers side. adjust it a bit towards the middle. . and see what i can do from there. im pretty sure with those tips you wont be able to notice much .
heres a quick sound clip. sounds a bit fuzzy with this camera.
heres a quick sound clip. sounds a bit fuzzy with this camera.
Last edited by TPI TERR; Nov 18, 2009 at 03:13 PM.
Joined: Sep 2005
Posts: 6,258
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: my LSx 87 IROC build
I think the rear diffuser with those tips looks really good. My only complaint (me being extremely picky), is that you should look into maybe having the edge of the tips cut to sit flush with the rear bumper. The one picture where the camera is looking almost straight down on the tips makes them look out of place.
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Re: my LSx 87 IROC build
the tips themselves are very weird. weird angles but they kinda throw you off.
they are aluminum and i can probably cut at the angle of the bumper. but kinda scared !
they are aluminum and i can probably cut at the angle of the bumper. but kinda scared !
Joined: Sep 2005
Posts: 6,258
Likes: 6
From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: my LSx 87 IROC build
I'm sure you could get some help if you wanted to try and cut them. I've got a porter cable band saw that makes straight clean cuts, something like that would be perfect for cutting those tips. THen you could take a file and smooth them down and then polish them again.
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Senior Member
Joined: Jun 2008
Posts: 1,298
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From: Norfolk VA
Car: 85 Camaro IROC
Engine: 5.7 TPI
Transmission: 700-R4
Axle/Gears: open rear, 3.42 gears
Re: my LSx 87 IROC build
looks good.
got an underside shot of how the exhaust is routed?
on a side note, im not sure i like the GM badges behind the doors... possibly if they were much lower, but im not really feeling it...
oh, and you will love those tires
got an underside shot of how the exhaust is routed?
on a side note, im not sure i like the GM badges behind the doors... possibly if they were much lower, but im not really feeling it...
oh, and you will love those tires
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Thread Starter
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Re: my LSx 87 IROC build
they're good in the rain but you actually have to warm them up pretty good for those to grab.
but im afraid to break that rear end.
i did pick up some ets this week though
Last edited by TPI TERR; Dec 25, 2009 at 07:07 PM.













