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| Northstar V8 swap questions (those that done it please chime in) (Page 3/4) |
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Thunderstruck GT
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DEC 20, 06:03 PM
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| quote | Originally posted by dobey:
I guess you've never build an engine of any kind, EVER, either then. |
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Nope.... Never 
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dobey
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DEC 20, 06:09 PM
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| quote | Originally posted by Thunderstruck GT:
Nope.... Never
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I guess they didn't last very long if the blocks weren't sealed, then. Must have lost a lot of coolant and oil.
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Dave E Bouy
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DEC 20, 07:30 PM
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I have swapped an 06 N* into an 85 using the stock caddy 06 ecm as tuned by Sinister Performance. I also swapped in the stock caddy transmission and torque convertor which I wasn't so thrilled with. It seemed a bit slack at the bottom end but mister that thing would snap your head back when you kicked it down at cruising speeds. I think the lack of low end torque was due to the stock convertor. Now having said that I have also swapped an 02 N*/4speed muncie into a Fiero and that thing would sizzle the tires off in no time. Loads of torque. I believe Sinister can tune an 06 ecm to run with a manual trans (obviously you'd want to confirm this) and if so an 06 N* would be an awesome choice for a Countach rebody. I do believe that GM had the whole headbolt issue long since resolved by the time the 06 motors were built. The 4 speed muncie does have an issue with the clutch arm hitting the coolant crossover but that can be reolved too. IMO if you want same old same old do the 3800. Drop dead reliable and plenty of aftermarket goodies available to make skads of power. If you want wow factor to match a Countach rebody a N* is a very viable option!
DF
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countachmike
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DEC 21, 10:55 AM
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Will a ecu 7730 from a 92 camaro work with a 93 northstar v8 (vin 9)?
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dobey
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DEC 21, 04:56 PM
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Will
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DEC 21, 09:52 PM
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| quote | Originally posted by Thunderstruck GT:
If they are so good please enlighten me as to why you had to take them apart?
I've never had to "seal" an engine block of any other kind..... EVER! |
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To pull the crankshaft out for weight relief. Also, a rod bolt stretch gauge won't fit on half the rod bolts with the lower case half in place.
It's pretty ridiculous that a guy who builds Chevies is busting on a Northstar for leaks. LOL. A Chevy needs half a tube of RTV to seal the intake manifold. A Northstar takes a total of 4 tiny dabs.
Soo... what's in *your* engine bay?[This message has been edited by Will (edited 12-21-2015).]
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Thunderstruck GT
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DEC 22, 09:57 PM
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| quote | Originally posted by Will:
To pull the crankshaft out for weight relief. Also, a rod bolt stretch gauge won't fit on half the rod bolts with the lower case half in place.
It's pretty ridiculous that a guy who builds Chevies is busting on a Northstar for leaks. LOL. A Chevy needs half a tube of RTV to seal the intake manifold. A Northstar takes a total of 4 tiny dabs.
Soo... what's in *your* engine bay?
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Wow, total dumbass statement.
I see why you like Northstars.
By the way, I don't buy your excuse.[This message has been edited by Thunderstruck GT (edited 12-22-2015).]
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Raydar
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DEC 23, 11:16 AM
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I guess for someone who doesn't know what they're doing, the care and feeding of a Northstar might seem like a daunting task.
For those that do, it shouldn't be an obstacle.
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Will
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DEC 23, 07:57 PM
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| quote | Originally posted by Thunderstruck GT:
Wow, total dumbass statement.
I see why you like Northstars.
By the way, I don't buy your excuse.
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IXSLR8
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DEC 24, 01:53 AM
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Regarding your questions:
1) I'm on my 3rd N* build and I have used two 1996 Vin9's and one 1995 Vin 9 engine. I like these engines because: they bolt up to the stock Fiero trans without an adapter plate; are cheap to acquire; they start at 300HP..
What year or years northstar are people using?
2. I'm using the LS1 computer (from a 1999 Camaro with the Shelby program) with a 5 speed Getrag transmission; I'm using the 1996 PCM (Wester's Garage modification) with the 4T80e automatic. I'm using the OBD1 computer with the 1995 engine with a modified chip by Howell with the auto 4T80e trans.
Are you using the original ecu from that engine in place of the fiero ecu?
3. There's a wiring harness made by Howell (for any of the early N* but running them on the OBD1 computer). There is a wiring harness for the Holley Commander and Dominator aftermarket computer by CHRF. AJ is no longer doing the Fiero N* wiring harnesses for the LS1 Computer. He's moved on to other stuff.
Is there a wiring kit out there for the northstar? I read from one member there is a wiring "kit" but after searching I can't find it
4. If you are using a manual Fiero transmission then you can use the stock axels. If you are using the 4T80e, then you have to cut your Cadillac axel on each end by 3/8" and cut the slot for the retaining clip. Using the cut axels, you use the Fiero spindle on the hub side and the Cadillac tripod for the caddy side.
Using the stock trans I should be able to retain the original axles?
Relative to advice: The N* is an expensive engine with more internal parts than a chev 350 so be ready to spend a little more. I would suggest putting in Norm's mega inserts and then use the stock GM bolts or aftermarket ARP studs(volkswagen). I chose to use the ARP studs. Doing the inserts eliminates any future issues with regard to a pulling fastener. The N* gets 28-29 mpg in my automatic on the freeway so its a great commuter for a V8. CHRF also has reground cams and valve springs if you want to get into more Naturally aspirated power and higher revs. I'm using his mild 272 cams on the LS1. Regarding exhaust and the trunk of the fiero, my manual trans has the full trunk with my own headers. My autos have the trunk cut short using the GM header and crossover pipe and downpipe.
Bottom line, I think you will like the smooth power that keeps pulling and pulling and pulling under WOT. Its a blast.
Welcome aboard, Mike.
Hope that helps some.[This message has been edited by IXSLR8 (edited 12-24-2015).]
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