"Lil Alky", the epic build thread

[alkygto]

Hey guy's, it's been awhile since I've posted but here it goes.........

Well, I finally bit the bullet and realized i would'nt be happy with just throwing a used motor in my GTP and the realization that it's sat with a smoked motor for way too long. It's rebuild time!

Stopped by Button Machine today and talked to my buddy Doug. Ordered main studs, head studs, ARP rod bolts + the cam installation kit from ZZ tonite. The plan is to just do a hone on the cylinders and reuse my pistons on the stock reconditioned rods, main hone with the studs and decking only if needed. I plan on using the cometech head gaskets and just do a super durable rebuild on the short block. Not sure if I'm going cam yet but I'm leaning that way. Heads will get some mild porting by me and a valve job with some good springs with regards to what cam I choose. Nothing too crazy here as I plan on doing a DD on E85 with some resized stock injectors, hence the name "Lil Alky". Stay tuned for more and I'd appreciate good advice and or creative criticism!

Oh, and BTW, I do have a Stiegemeier Snake Bite I may throw on it with a stock pulley.

[matt5112]

For background:

Buick Turbo V6 Engine Build Overview - GM High-Tech Performance Magazine
Buick Turbo V6 Engine Build -- GM High-Tech Performance Magazine
Buick Turbo V6 Engine Build - GM High-Tech Performance Magazine

For specifics:

3800 OILING -TECH- analyzing deficiencies - 3800Pro.com Forum

[alkygto]

Thanks Matt, all good reads.

How much boost is safe to run with this setup on E85 and no intercooler (maybe later if I could find one for a deal or make my own setup) I'm thinking I'd see maybe 15 lbs with the SB blower on there and maybe 12 psi with the 3.4 pulley and no SB or less since I have headers and plan on a little porting? Any ideas?

[matt5112]

Understand dynamic compression ratio? It would probably give you a decent idea of what you can probably get away with.

Which snake bite blower?

I was under the impression they called all of their super awesome ported blowers (stage 5?) snake bite.

If its roots and similar efficiency you'll be around the same as an M90. Larger blower only helps when its more significantly more efficient in the range you plan on operating it in.

If you're keeping it at 8.5:1 static compression, you should see ~10 psi if you had headers with no other mods with an M90 and a 3.4 pulley.

With a cam, you'll probably end up around 3.2, with E85, probably closer to 3.0.

But that could go either way, higher or lower.

PSI should be around 10-12. Whatever you can get away with running 16-18* of timing relatively KR free.

I'd talk to these guys about a cam:

http://www.abbottracingheads.com/gm3800.htm

[matt5112]

Hate to make a second post but the new software makes editing a PITA.

Regardless, I'm not convinced a large LSA means anything.

If the duration is high enough, you'll end up with overlap anyways.

So on that note: cams, The more I look into them, the less I want to go with one off the shelf.

[alkygto]

This is a Snake Bite, it's an internal overdrive, 30%, I think it should get me 12-13 psi on a 3.8 pulley. Check out Steggy's sit, they've got some vids of them on Cobras and they scream. I know Bob personally and built his supercharger flow bench.

[Odi]

in4moar

[Explicit_Spade]

Looks interesting to say the least, I can't wait to see how this turns out!

[Bio248]

want snake bite m90. want it bad.

[redlinepontiac]

in4possibleawsomeness

[matt5112]

I guess bio's question is: Is it louder?

If so...

[Bio248]

yes, huge.

[redlinepontiac]

id be alright with that

[matt5112]

I wonder what sort of speed that blower saw though.

Probably in the neigbourhood of 20K rpm.

My blower only sees 12K and change.

[Bio248]

its also an m112.

[matt5112]

Well is the noise being generated by the straight cut gears or the rotors/air moving through the blower?

[16MustangVet]

IntosayyeahFVCKyourTVS!!!!

[Sandman]

Interesting. Is this going to be a modified M90 that bolts right on or a different blower with an adapter?

[alkygto]

It's a modified M90, all inside the front drive. Sounds like a pro charger at idle because of the straight cut gears and the boost hits hard. I initially tried it with a 3.4 pulley and it hit 15 lbs now. I just want to build a motor that will handle it reliably. Bob's port alone picked up hp and tq, you could really feel it down low too so you did'nt have to rev the piss out of it to feel the power. Felt like I got back all the torque I lost down low with the headers.

Snake Bite's are kinda pricey (about $600) and they were initially for the GT500 crowd because they were limited on upper pulley's and they have a nasty tendency to break cranks when you put a lower on them. Regularly see about 16 psi with a SB on a GT500 with all stock pulleys and about 600rwhp. And you can't tell them appearance wise from stock. Pretty sneaky ****.

The gear whine is just a bonus. I'm gonna run mine initially with the 3.8 pulley on a hub and then step up incrementally and see what the IAT2's do. It's really just another way besides pulleys to spin the blower faster, but it really does seem to wind up faster and hold the boost all the way through.

I'm pretty sure mine is the only SB for a GP M90 but I know Stiegemeier has done a boatload of the M90's for the Saleen Mustang guys, those come with like a 1.9" upper stock so they are almost impossible to pulley up without belt slip.

[Sandman]

That sounds pretty awesome. Really $600 doesn't sound so bad to me when you consider what some people want for a GenV or the price of a ported blower. You did buy a whole blower correct?