stockgp Posted April 14, 2005 Report Share Posted April 14, 2005 i know this topic has been done to death. for some reason i'm a little fuzzy on the details after looking through four or five pages of searched topics. maybe someone can clarify for me. so far what i understand i would need from a 3100 is: upper and lower intake heads and exhaust manifolds coolant pipe from water pump new pushrods (it's best not to reuse i assume?) new head bolts(same as above) roller lifters do i also need the exhaust crossover pipe, or will the 3.1 crossover work? does the cam need to be swapped as well, or is there no difference between the roller and non-roller cam? can i keep the 3.1 airbox and hose? did the egr valve evolve in any way from 3.1 to 3100, or does it bolt right on? would i still be using the map sensor, or would that change to the 3100 maf sensor? realistically, what are the gains? any dyno sheets? that's all i can think of for now. thanks in advance. Quote Link to comment Share on other sites More sharing options...
FastSE2DR Posted April 14, 2005 Report Share Posted April 14, 2005 3100 doesnt use a maf in w-bodys..atleast in grand prixs Quote Link to comment Share on other sites More sharing options...
OldsmoBeast Posted April 14, 2005 Report Share Posted April 14, 2005 3100 doesnt use a maf in w-bodys..atleast in grand prixs :?: :?: :?: I've got a MAF...? Quote Link to comment Share on other sites More sharing options...
FastSE2DR Posted April 14, 2005 Report Share Posted April 14, 2005 weird maybe that was the later 3100s...i have a map and iat Quote Link to comment Share on other sites More sharing options...
OldsmoBeast Posted April 14, 2005 Report Share Posted April 14, 2005 weird maybe that was the later 3100s...i have a map and iat I've got both a MAF and MAP...the maf's before my IAT, and the MAP is mounted on the back of the plenum.... Quote Link to comment Share on other sites More sharing options...
DiscoStudd Posted April 14, 2005 Report Share Posted April 14, 2005 GM started adding the MAF's to the 3100's in 96. My old 95 GP didn't have one, but my old 96 Lumina did. I would imagine if you were running the setup on your stock PCM, then you could just discard the MAF. Also, the EGR changed in 96. The 94-95 3100's used the same EGR that the later 3.1's had... Quote Link to comment Share on other sites More sharing options...
stockgp Posted April 14, 2005 Author Report Share Posted April 14, 2005 so does my 93 3.1 have the correct egr? Quote Link to comment Share on other sites More sharing options...
DiscoStudd Posted April 14, 2005 Report Share Posted April 14, 2005 so does my 93 3.1 have the correct egr?I know for sure that the EGR's were the same from at least 92 thru 95 on both the 3.1 and the 3100. If you go with a top end from a 94-95, your EGR will be plug-n-play. If you get the top-end from a 96-99 3100 or 3400, you can buy an EGR adapter (from 60degreeV6.com's online store) which will allow you to use your 93 EGR on the 96-99 Upper Intake Manifold (UIM)... Quote Link to comment Share on other sites More sharing options...
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