Does anyone know what the clearance is from the ls1 inlet manifold to bonnet and throttle body to bonnet
(when i say bonnet i mean the outer skin not the reinforcement )
thanks guys
ls1 to bonnet clearance
Started by
LOOKING4HATCH
, Sep 07 2014 09:25 PM
19 replies to this topic
#1
LOOKING4HATCH
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Posted 07 September 2014 - 09:25 PM
#2
rexy
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Posted 08 September 2014 - 12:15 AM
I presume you mean in a Torana of some sort?
#3
LOOKING4HATCH
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Posted 08 September 2014 - 12:41 AM
Sorry .. yes a lx hatch
#4
_LS1 Hatch_
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Posted 08 September 2014 - 01:48 AM
With the stock plastic intake it would have fit fine under my bonnet....when I went to the Edelbrock I needed to do some bonnet cutting of course.
#5
LOOKING4HATCH
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Posted 08 September 2014 - 02:01 AM
thanks Jeff, i know it will fit, i just need to know what the clearance is to the skin not the reinforcement. i have a few plans and need to know what the gap is before i start. don't want to buy engine mounts only to find out to do what i want i will need to custom make mounts.
#6
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Posted 08 September 2014 - 08:37 AM
Off the shelf mounts keep everything very close to the crossmember
If you think your going to need more room your going to need more than just custom mounts
#7
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Posted 08 September 2014 - 07:14 PM
They are pretty low. Fits easily under the bonnet in the LJ too.
#8
_GreenLH LS3_
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Posted 08 September 2014 - 10:23 PM
With tuff mounts and an ls3 I have about 30 mm to the inside of frame . That's from the highest point on the manifold not sure about throttle body but I had more room there than the manifold. I only know because a magnuson blower is 40 mm higher than standard manifold and without fitting a scoop(which I 'd never do) I would not be able to squeeze it in without major mods to x member and steering rack.
#9
_LS1 Taxi_
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Posted 08 September 2014 - 11:33 PM
I've got at least 25mm to bonnet frame.
That's LS1 with tuff mounts.
That's LS1 with tuff mounts.
#10
_LS1 Hatch_
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Posted 09 September 2014 - 01:05 AM
With tuff mounts and an ls3 I have about 30 mm to the inside of frame . That's from the highest point on the manifold not sure about throttle body but I had more room there than the manifold. I only know because a magnuson blower is 40 mm higher than standard manifold and without fitting a scoop(which I 'd never do) I would not be able to squeeze it in without major mods to x member and steering rack.
You could always check into the other blowers out there too, for comparison sake... Edelbrock, Kenne Bell, etc. (I used a Kenne Bell on an LS1 and was really happy with the combo)
#11
LOOKING4HATCH
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Posted 09 September 2014 - 06:14 PM
that really helps me with my plans
thanks heaps
#12
WA1TNC
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Posted 13 September 2014 - 08:19 AM
With tuff mounts & a Harrop 112 blower with intercooler plenum it fits without poking through, I had to cut a rib out but. Engine's been out 4 over 2yrs so I can't exactly remember how close.
Hope this helps.
Cheers, Nig.
Hope this helps.
Cheers, Nig.
#13
_LS1 Hatch_
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Posted 13 September 2014 - 08:31 AM
2 years with no engine ?
Isn't that like a crime of some sort?
Isn't that like a crime of some sort?
#14
WA1TNC
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Posted 14 September 2014 - 09:50 PM
Yep... I just dont have time or $$$ anymore. When I sell my 2 utes & get another daily ill have some play money & get back into it.
Cheers, Nig.
Cheers, Nig.
Edited by WA1TNC, 14 September 2014 - 09:51 PM.
#15
_LS1 Hatch_
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Posted 15 September 2014 - 03:47 AM
That's cool...and gives you time to think of even more things you can do with it. 
#16
_LS1 Taxi_
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Posted 15 September 2014 - 07:44 AM
Hey Nig,
You know you want to sell that blower and intercooler to me
#17
WA1TNC
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Posted 15 September 2014 - 12:50 PM
Haha, yeah Iv got a line of mates who want me 2 part ways with the set up, Iv thought about selling it 2 fund finishing the rear end but I'll only sell it if I get a set of twin turbos or a big single f'k off turbo....
Cheers, Nig.
Cheers, Nig.
#18
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Posted 15 September 2014 - 02:10 PM
I'm not sure how you got firewall clearance with the tuff mounts?
The tuff mounts push the motor right back in the bay and that Harrop blower protrudes 36mm past the back of the block.
As far as I can tell, it would require the cutting back of the top lip (all the way back) and the deleting of the heater fan box to make room for the rear pulleys and belt.
#19
WA1TNC
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Posted 15 September 2014 - 10:24 PM
Yeah mate, a lot of dick'n round went in2 getting it in there...it wasn't as if I just brought everything off the shelf & waved a magic ratchet & it all fitted perfect haha.
I would guess I had the engine in & out at least 10 times, sometimes with the trans on & sometimes with it off while I was doing it.
If I can find a few pics ill put them up but don't think Iv got any. I shaved the drip rail, then shaved a lil more, then shaved the firewall bump flat, then re-drilled the tuff mount hole 20mm-25mm so I could get a bit more angle... then just kept massaging it until I was happy with the angle where it all sat. Then I just used the xmember that came with the car, spaced up the mount a lil & bang.
....then pulled it all out & left it 4 ages :(
Cheers, Nig.
I would guess I had the engine in & out at least 10 times, sometimes with the trans on & sometimes with it off while I was doing it.
If I can find a few pics ill put them up but don't think Iv got any. I shaved the drip rail, then shaved a lil more, then shaved the firewall bump flat, then re-drilled the tuff mount hole 20mm-25mm so I could get a bit more angle... then just kept massaging it until I was happy with the angle where it all sat. Then I just used the xmember that came with the car, spaced up the mount a lil & bang.
....then pulled it all out & left it 4 ages :(
Cheers, Nig.
#20
WA1TNC
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Posted 15 September 2014 - 10:37 PM
This is how it 1st went in...
Then this is how I moved the engine a little more foreward...
& you can sorta see where Iv removed that hump in the firewall.
Hope this helps mate. I know that you were after prob a shot from under the bonnet but that's pretty much all Iv got I think.
Cheers, Nig.
Then this is how I moved the engine a little more foreward...
& you can sorta see where Iv removed that hump in the firewall.
Hope this helps mate. I know that you were after prob a shot from under the bonnet but that's pretty much all Iv got I think.
Cheers, Nig.
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