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I've put a cam into 3 240's/ One was a radical cam into a '78 242GT, very big improvment with the K-Jet, but 'one-of' IPD Swedish find in the late 80's, nla.
By comparison the VX is mild. I put the VX into a '92 245 w/auto and it made little difference, even with an exhaust, K&N and adj gear. The next I put the VXC into my current '89 245 5-speed w/IPD exhaust, adj gear and K&N. Now this is noticable. I also use a 940 ECU which has fuel maps better for low end torque. It is relatively fast (less than 8 sec 0-60) if I use premimum gas.
The big difference is the torque requirement to drive the auto tranny and OD unit, like on an M46 w/OD. The VX is not enough of an improvement in HP upper end or certaily low end torque to find any difference in the suto tranny. It will show some very nice low end torque AND high end HP when you have it matched with a 5-speed because it is not a torque-eater. I run it a 4 1/2 degrees advanced. Full advanced to 6 degrees lowers the torque a bit.
It will work better with the later LH 2.4 Jetronic compared to the LH 2.2 because the 2.4 can accomodate greater fuel flow to about 20%. The K Jet will also work well because it will flow as much as the cam can allow the valves to flow. Any of the later LH 3.0 jetronic will restrict the flow to stock spec and lean it out too much to have any performance advantage.
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'89 245 Sportwagon, '04 V70 2.5T Sportwagon
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