Anybody done/heard of a swap using the supercharged Northstar from the XLR-V/STS-V? If so, I would love to see a write-up of the build. That'd be one mean-a$$ little car...
[This message has been edited by Metalflake (edited 05-31-2014).]
I've seen Eaton superchargers for sale on Flea-bay that are said to be able to fit a N* but one thing that jumps out at me from the pics Is that these appear to have 8 rib pulleys. Does anyone know anything about these? I'd be tempted to try one if I knew it would fit.
A while ago there was a supercharger kit available for the N* but I do think that you would be better off with a turbo.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Powerlog manifold, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
Any supercharger would have to use the position of the main accessory belt on the FRONT WHEEL DRIVE engines in order to fit between the frame rails of a Fiero.
The REAR wheel drive version of the engine is the one that is supercharged. That means that the accessory belt is significantly further forward from the front face of the block than on the FWD engines. This means that the GM supercharger likely would not fit in the Fiero engine bay.
Any supercharger would have to use the position of the main accessory belt on the FRONT WHEEL DRIVE engines in order to fit between the frame rails of a Fiero.
The REAR wheel drive version of the engine is the one that is supercharged. That means that the accessory belt is significantly further forward from the front face of the block than on the FWD engines. This means that the GM supercharger likely would not fit in the Fiero engine bay.
Yes, I know that the factory supercharded engines were RWD. Didn't realise there was that much difference on the front end of the block though - thanks. I guess that'd mean then that naturally aspirated RWD Northstars wouldn't fit either?
The FWD engines have the waterpump hanging off the bellhousing end. That makes transverse fitment easy.
The RWD engines move the waterpump to the front, which makes the engine at least 2 inches longer at the pulleys. That's about 1.5" more than will fit in a Fiero engine bay.
Also, the RWD engines have variable cam phasing. The cam actuators stick out from the front of the cylinder heads and will interfere with the strut tower on an '84-'87 car, interfere MORE with the strut tower on an '88 car and *may* interfere with the stock battery location... not sure. I think the battery interference is unlikely, but I haven't tried one yet.
I looked at the N* eaton chargers that fit the 4.4 and they won't fit the 4.6N*. The intake pattern is different.
When I first thought of doing it, I figure an Eaton charger (like a model 90 style) turned upside down, wtih the hump in the N* cavity, could work. But I think a standard Vortech would be better. I would place it where the original Fiero battery tray is located. I have my battery up front. This would provide the necessary room. You still have the intercooler issue to deal with, that is, the space for it if you want to control the IAT.
I looked at the N* eaton chargers that fit the 4.4 and they won't fit the 4.6N*. The intake pattern is different.
Different between the N/A and supercharged engines?
The intake bolt pattern changed from '99 to '00. I was under the impression that all engines since '00 have used the same intake bolt pattern. However, I would not be surprised at all if the mounting bolts for the supercharger were bigger. The normal plastic intake uses ten 4mm bolts.
