6g75 into ralliart magna

[nasawalker04]

Just curious as to how much better my car would be , a tj s2 ralliart, with a 6g75 motor in it its pretty good now just something to mull over in the future.

Just any thoughts would be appreciated.

[Brett H]

Non original motor will devalue the ralliart of course, but it will perform better with a 6g75.

The 75 will get around 160kw @ wheels, original ralliart I don't know 145-150???
Over the quarter maybe an extra few tenths, maybe even half second, and 75 a bit more low down torque.


Of course the 75 will run a bit better with a custom tune, I ran my 75 with a ralliart tune for a while and was a little bit off in parts, particularly lower revs.(this adds to your costs)

Then if you customise a 75 inlet manifold a few more kw's again. More costs but a worthwhile one (4-5 kw).


For the dollars spent (plus losing the original engine from a rare car), maybe you are better off optimising the ralliart engine?
Don't know if anyone has tried the 75 inlet manifold along with a custom tune on a ralliart engine, but perhaps that could add 5-8kw?

Then Keep the standard gear if you ever want to revert to ralliart specs, or to include for sale of car.

[Madmagna]

Have done this a few times and in every case the customers have been happy