96 Beretta Project

[SofaKingWeToddDid]

Agreed. Badass indeed.

[MY91GT(Z)]

any updates on how well its running now that its done

[3400-95-Modified]

Well, went to BerettaFest in Charlotte NC and the car ran like SHIT at the dragway... It was only a 1/8th, but a stock 3400 5-speed combo was faster than me, and I was 8 tenths off my fastest 1/8th time. Only thing I could point the finger at was my increased valve train noises this year over last... I was thinking the lifters are finally done supporting those springs... At least I hope thats it.

Compression is 175 at every cylinder, 4 pumps each one, on a cold motor after sitting for a week or so. So thats good, heads will stay on this tear down.

So on with the LS6 lifter mods... I ordered my Metal Fel Pro gaskets yesterday, the should be in on Friday so I can work on it that night and saturday and hopefully have it back together and running.

Here are the parts I swapped... Stock is on the right the LS6 is on the left.

[3400-95-Modified]

LOL, send me a raised gel-style emblem and I'll see what I can do

[bszopi]

Nice! Now you just need to recess it to match the Chevy badge.

[3400-95-Modified]

Well I figured, rather than tag my Base model as a Z26 just because I put the kit on it, I would leave it unmarked... I think representing the parts supplier is better fit

[3400-95-Modified]

You could keep the stock exhaust roller fulcrum rockers to save $$. Not like the extra friction loss of the tip on the exhaust is going to make much of a difference. True it won't look as cool as having all the same rockers, but who looks under the valve covers anyway??

Do you mean 10.5:1 from the 11.5:1 (stock 3400 gets you this) pistons?

I thought that too on the rockers, but then I figured if I'm going to 1.8 full rollers, I'm gong to do both 1.8 and 1.6 since I don't want the weight to differ between the exhaust and the intake.. THAT will make a difference.

I'm sure Ben will offer an option where you can get a split set... I doubt Scorpion wont sell them in sets of 6.

As far as the compression, yeah your right, I thought it was 10.2 with whatever there was for the 3400, but yeah the 11.5 3400 pistons would net me a 10.5 CR on the 3500 top end. That change alone may give me an additional 25-30hp...

Ben if your reading... My cam in a hybrid setup, slightly ported, 65mm tb, headers and the 10.5 CR... What gains over my current 9.15:1 CR?

[IsaacHayes]

You could keep the stock exhaust roller fulcrum rockers to save $$. Not like the extra friction loss of the tip on the exhaust is going to make much of a difference. True it won't look as cool as having all the same rockers, but who looks under the valve covers anyway??

Do you mean 10.5:1 from the 11.5:1 (stock 3400 gets you this) pistons?

[3400-95-Modified]

According to him that was on my 3400 with 3500 heads and my cam... I did ask for a simulation of my setup, so I don't think he quoted that for a stock 3400

I already have a shit ton of lift, so a ratio change is not as helpful to me as some others.

[torq455]

13 hp and 500 more rpm...is that on your build or a stock 3400? big difference there!

[3400-95-Modified]

According to Ben, 1.8's aren't the best way, I think he said I should go with 1.6 on the exhaust and 1.7's on the intakes... and that's $$ when they do come out... so thats next year.

Flux capacitor is still in testing... I would hate to put that in and then have it blow a fuse or something... those are a pain to install, I hate getting shocked by it.

And CSC? missing that one.

Also on the block for next year, if all goes well I'll be going to the 10.2:1 compression Diamond pistons... POSSIBLY... depends on what else is going on.


EDIT
WHOOPS...
I take that back on the rockers, He said 1.8 intake 1.6 exhaust....

1.8/1.6 works for you. You can go more on exhaust but it does almost nothing. 1hp at 1.8/1.8. 1.7 intake says 4hp and 1.8 intake says 13hp and raises peak hp 500rpm to 6000.

26986 springs are good for .640 lift but I have't checked the seal to retainer clearance past .600. Since it doesn't really help, I would bother with it.

going from a 1.6 to the 1.8 on the exhaust was only worth 1hp more, and 1.7 intake only was 4hp I think, but just the 1.8 intake 1.6 exhaust swap is worth 13hp and 500 Peek RPM, if I'm reading that correctly...

[IsaacHayes]

Pffft, you still need to install a CSC, 1.8:1 rockers and the flux capacitor.

[3400-95-Modified]

i'm fairly certian that the brake torque on a 3400 will be close to 2500 rpm on that converter. why not go with a converter out of a late 90s lumina or equivalent? my 97 brake torque was 2800.

To reply to this, I have a 2095 that's built up, and I had that done last year sometime, I also had this PDQ which is confirmed by them to be a 3195 stall... So I'm trying to work as cheap as possible here and not spend anymore money... My brake wear parts alone were over 500 bux... never mind all the other parts that went into it, so I'm already very tight on my budget that I didn't even want to spend this year. With paint over the winter, I killed any huge purchases regarding power and speed this year... except for just bolting on my NOS kit.

[3400-95-Modified]

2600 on my car at WOT, Pumped brakes and mashed gas, they actually held it in place.


Posting from iPhone need anymore info?

[torq455]

no. my 97 base 3100. my Z stock and current convert torque stalls are 2500.