V8 in Bonneville - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 11-09-2006, 02:18 AM   #21
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Quote:
Originally Posted by GoldenBullet
hey, im just brainstorming
Yeah, I think I brought up something like this a while ago and got murdered for it... These guys REALLY like their blowers i guess!
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Old 11-09-2006, 02:35 AM   #22
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i bet if i made a */c out of carboard and put it on top of the V8 they would be interested
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Old 11-09-2006, 06:38 AM   #23
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Quote:
Originally Posted by GoldenBullet
i bet if i made a */c out of carboard and put it on top of the V8 they would be interested
This I gotta see...
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Old 11-09-2006, 08:02 AM   #24
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Default Re: V8 in Bonneville

Quote:
Originally Posted by GoldenBullet
has anybody put a cadillac V8 into their bonneville? i know they put em in the GXP but how about the older ones? would it even fit? how much work would it take?
Having seen some Northstar V8'* in non-Cadillac chassis, I would venture a guess that it is possibled. (Fiero swaps come to mind.) It would be an attractive option if you are looking for a N/A motor with a big jump in power over stock and have no future plans at alter it further.

Doing it on the cheap may be asking a bit much.

Some things you would need to fabricate on your own: motor & transmission mounts on the subframe, bastard CV joints to mate the transmission to the wheel hubs. This could very well be a simple mix-n-match operation...only way to find out is to take them apart and see what fits together and what doesn't. Keep in mind that the Northstar PCM plays a major role in keeping the tranaxle healthy...Cadillac had plenty of issues with parts breakage do to happy-right-foot owners, so the Northstar'* PCM pretty much has to be included in the swap.

Suspension bits are also going to be a trial and error operation, though others here can fill you in on the different factory springs available for the Bonnie...just a matter of finding the set that will compensate for the new weight of the new driveline vs. the old.

And you will need a lot of dedicated time to the Northstar'* control systems to get it up and running with a lot of chassis mounted sensors missing (like the ABS, Traction Control, VATS, etc, etc...) The Northstar PCM will need a lot of checks deleted out of it before it will even fire up and run.

There are easier swaps out there, but if unique is your goal and you have the time/talent/money, have at it. It would be a bitchin' bonnie when its done.
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Old 11-09-2006, 03:03 PM   #25
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The only reason to use a Northstar over an LSx (which mates to our tranny) is to have buzz words like DOHC, etc.
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Old 11-09-2006, 03:04 PM   #26
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f#ck DOHC, what about..V8! theres nothing like it
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Old 11-09-2006, 03:07 PM   #27
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Quote:
Originally Posted by GoldenBullet
f#ck DOHC, what about..V8! theres nothing like it
Uh..Goldy.. the northstar caddy motor you are considering using is a DOHC and a V8.

Thanks for the laugh.
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Old 11-09-2006, 08:50 PM   #28
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Sure, you can easily get 350 hp out of an L67

Or turbo the N* and get like 1k
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Old 11-09-2006, 08:52 PM   #29
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LS4 swap would be sweet. In the GP'*, they are running 13'* with those motors bone stock ... and that'* with a ton of TQ. Bonnies don't weight too much more, and you get more room under the hood.

But still, that would be expensive.
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Old 11-10-2006, 02:19 AM   #30
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Quote:
Originally Posted by BillBoost37
Quote:
Originally Posted by GoldenBullet
f#ck DOHC, what about..V8! theres nothing like it
Uh..Goldy.. the northstar caddy motor you are considering using is a DOHC and a V8.

Thanks for the laugh.
i know it has DOHC, im not that stupid, i was just saying i would rather throw around words like V8 rather than things like DOHC and such
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