finally a 3100 to install

thumbs · Posted: Sun Sep 28, 2008 5:55 am Post subject: finally a 3100 to install

i bought a 95 grand am last nite for the motor it was cheap 200 and it was mine. the car is complete and runs. the only problem seems to be a bad head gasket on the rear cylinder head. previous owner says its leaking coolant. it don't mater about that as i'm going to rebuild the motor anyway. i may even get the motor setup for boost. i have been reading about the swap and everyone says you can't use the '00+ injectors, can i use the '95 injectors? if not i have a spare set from a 2.8 that are ohmed at 12 ohms, all of them. i know it's the small port design but it is a good base if i ever want to go with a '00+ 3400. does anybody got any ideas or advice it would be much appreciated. the car is suppose to arrive at my place this afternoon i will take pictures of the car when it arrives and post them tonite. i have all the install guide printed off of www.domesticcrew.com everything seems straight forward there. i don't know about the chip but it seems to me i could use the 2.8 chip for a little while and it will burn alittle lean at wot. if it don't work then i'll have to get a chip burned. i'm also going to have the stock 5 speed behind it with probably an updated diff. and a centerforce dual friction clutch.

fallenz24 · Posted: Sun Sep 28, 2008 1:47 pm Post subject:

Before anyone comes on here bashing the s.p. 3100, I want to say that they are an upgrade from the gen2 3.1. I put a '98 3100 in my Z24 a few years ago and it was a great swap. It doesnt make much power over the 3.1L but it does run much better and get great gas milage. Depending on the mileage you may not have to rebuild the engine. You can use the injectors currently on the 3100. Just take the injector harness from the gen2 3.1 and put it on the 3100. It will run just fine with the stock 2.8/3.1L tuning. My engine got 30+mpg when installed in my z24.

The cons:
Small port intakes
1mm Smaller intake valves than 00+ engines
Stamp steel rockers (not roller but still 1.6:1)
Log style rear manifold

Good luck with your swap. Just ask if you have any questions.

-Joseph

bing · Posted: Sun Sep 28, 2008 9:45 pm Post subject:

I have the exact same motor in mine

and it's a definite difference over the stock 2.8 (25hp on paper, which is like 20% gain)

eventually i would like to go for a 3400, at least i have all the parts i need now for that to work lol, it's just a matter of taking it out and dropping in the 3400, and getting the chip retuned

only thing, make sure you keep EVERYTHING from the 2.8 lol, i had a lot of set backs because i bought the car half-ass swapped, and didn't have any 2.8 parts

thumbs · Posted: Sun Oct 05, 2008 1:43 pm Post subject:

well as you can see i've had a very busy sunday. this motor is almost ready to be pulled out the only thing i have left to do is the very rear 2 bellhousing bolts 1 is a stud the other 1 goes in the reverse direction goes in from the motor side. the 2 fuel lines and power steer lines i'm going to take the lines off the rack. the 2 fuel lines have the quick disconnect fittings and my 89 doesn't mine screw on where should i cut the fuel lines? at or after the fittings? or can i just change where the lines screw into the fuel rail? as you can see to where the bolt is that i'm pointing at there is no idler pulley boss so i guess i have to search for a timing cover

thumbs · Posted: Sun Oct 05, 2008 2:09 pm Post subject:

a thought just came me can't i use all the power steer lines it has the same rack into it and www. domesticcrew.com says the best steel to use is from a 94 grand am with a 3100 in it well this is a 95 grand am with a 3100 in it thats my donor engine plus it looks like the same alternator as whats in my 89 or do i still have to put my 89 bracket on? thanks

10. Steel power steering line. Since you have to use your old CS130 style alternator, and bracket, you'll need to get a different steel power steering line that runs from the pump to the pressure hose. The one that works best is from a '94 Grand AM with a 3100. It has the right bends for a good fit around your old style alternator. Unfortunatly, this line won't directly fit with certain P/S pumps that have an electronically variable output (EVO) solenoid. Those pumps have an output that is at a 90* angle from the typical output. In that case you could rebend the line, but you run the risk of making it weak and having it break on you.

steve-o · Posted: Sun Oct 05, 2008 3:36 pm Post subject:

Hey Mike you should have gave me a call man, I would have given you a hand pulling that engine.

fallenz24 · Posted: Mon Oct 06, 2008 6:39 pm Post subject:

thumbs · Posted: Sun Oct 12, 2008 7:12 am Post subject:

well i finally got it out yesterday kept the booster hose attached and everything else now today the tear down begins i don't think it was a bad head gasket that was leaking coolant as much as the lower intake gasket sound familiar 95 3100 who would have thought

but seriously the car had almost 220000 km on it i think it's time for a rebuild once it is apart i will measure everything and decide then here is a picture of it being out and i think the power steer lines will fit no problem engine is now in my house the wife ain't to happy about that but i'm not leaving it outside to seize i figure i'll be putting it in after the winter and i'll keep you guys updated on the build still don't know what i want to do yet boost, nos just haven't decided yet soon to join the 3x00 club Shooting

whitelightning2 · Posted: Sun Oct 12, 2008 11:22 am Post subject:

You could probably get away with running stock 3.1 injectors and a stock 3.1 tune on a small port 3100. It won't be perfect but the stock tune isn't either.

joelallenclear · Posted: Sun Oct 12, 2008 11:38 am Post subject:

I can't figure out where one sentence begins and one ends...

but good luck to ya

thumbs · Posted: Sun Oct 12, 2008 12:17 pm Post subject:

spaceman · Posted: Sun Oct 12, 2008 12:28 pm Post subject:

It will run fine with the injectors in it ( multec 1's) Thats what Im currently running with my 3400, stock tune.

Six_Shooter · Posted: Sun Oct 12, 2008 1:38 pm Post subject:

whitelightning2 · Posted: Sun Oct 12, 2008 5:44 pm Post subject:

bing · Posted: Sun Oct 12, 2008 5:54 pm Post subject:

yeah my 95 3100 doesn't have roller rockers Sad

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