Two Dyno days one winner
 

I know at least two people on here that are building something other than an LS. :cool: I'm calling the other guy out.:lolhit: :D

I'll have my Dyno results on the 9th or 10th of Nov. Who thinks that little SB2 Flash is building will beat my 1960s tech motor?

What ya got Dave? Will that motor of yours run this year or not :question:

45 year old cast iron Tunnelport heads. Intake flow #s on a conservative flow bench.

Lift before after

.100 101 98
.200 173 168
.300 215 228
.400 243 262
.500 270 295
.600 294 322
.700 311 343

One of two Original Ford intakes a 2x4 with a pair of 750s or a single 1050 dominator (I'm running both on the dyno)
Pond Al sideoiler block
Crower forged crank 4.375 stroke with my bore it puts me at 496ci
Crower 6.7 rods
Custom CP pistons to put me @ 11 to 1
Crower bushed style solid roller lifters and a BP cam targeting peak power around 6200rpm.
T&D rocker set
Smith Bros pushrods
Dailey engineering 4 stage dry sump
Locked out MSD dist with MSD digital II CDI with programable ignition curve.
Electric water pump



http://i291.photobucket.com/albums/l...block005-1.jpg
http://i291.photobucket.com/albums/l...inca/ports.jpg
http://i291.photobucket.com/albums/l...inca/2x4tp.jpg
http://i291.photobucket.com/albums/l...ca/dailey3.jpg

Wait... what? How many cubes you got? :lol: You know if I was smart I woulda said we compare hp/tq per cubic inch! :willy:

You go first....good...so I can turn up the wick when it's my turn. :unibrow:

I'd have to guess (hope) I'll be on the dyno by end of November. :lateral:

Dart Little M block
4.170 bore x 4.00 stroke = 437 cubes
10.8 to 1 compression
Joe Gibbs SB2.2 heads
Ported GM intake
Single 4150 Holley style carb (will dyno 2-3 carbs)
6 stage dry sump system

I can see you now..... Hey Mike what if we put a bigger cam in this thing will we be able to beat the Ford?:_paranoid The other Chevy guys on the forum will never let me forget this.:wow:

What are the power aspirations for you guys that like to do things the hard and expensive way?:lol:

I didn't set the bar very high. Just about 10% higher than an old ZL1.:rofl:

Hard and expensive. Check.

A 23 degree SBC can hit those numbers. :lol:

:lol: My car was pro touring car.

need I remind you it rode in that sweet trailer of yours to all of those "pro touring" events :rofl:

Cubic Inches or Cubic Money
 

This will be fun to watch!! Making the popcorn now guys! LOL

My Dad always used to say "cubic inches or cubic money"... we'll see!

Being a Pontiac guy with traditional power that surprised a lot of people I'm rooting for the... er... um... Ford.

Well I have neither of those cubic things so I might be in trouble.

I don't blame ya... I am almost rooting for the sorry Ford too. :D

I'm not even going to touch this one........... at all.

you guys have all the cubes :(

That's too easy. Go second, add a little head gasket squish, record the number...and don't go boom! :lol:

Great post Rob :cheers:

Ya know whos got my vote

the big one? LOL

Your sig says where your heart lies. :cool:

Badmatt is PMing DG right now coaching him on every trick he can muster for that little SB2 :rofl:

It's pretty cool to think you can go about a similar hp goal in two very different yet similar ways.

We're both NA and both single carbs (well DG is afraid of my dual four intake so I agreed to use the single four figures:lol: )

Both motors are dry sumped and solid roller cams.

One's a small block Chevy and one will make more power :rofl: :rofl:

:cheers:

Well Shoot.. now you got us all figured out...

I do like the backwards heat dissipation idea though... Iron heads with an aluminum block. :cool:

Mattykins

Cubic dollars can beat cubic inches........well there goes the curtains for the guest room. :mad:

Like the man says $$ can overcome a lot of other things when applied correctly. :unibrow:

http://i291.photobucket.com/albums/l...ison_table.gif

The big bow tie. I never met a Furd I didn't like to beat

count it! :yes:

Nice comparison data Rod :thumbsup:
Peak piston speeds at redlines were interesting.

I see some smart people have been voting. :lol:

Hey that Cup motor is kinda weak. Late Model versions of the 358 makes 100 more hp. :unibrow:

If you got big numbers.... all I need to do is put on some bigger ratio shaft rockers. Like 2.0. That'll get it done. :D

Yea but the other 9 voted for your SB2:rofl:

Let's see some hp/tq goals from both?

The goal is 700ftlbs of torque, a big flat torque shelf. Peak hp is targeted at 6k rpm or just a little over and we think 700 will be seen for sure.

I have the advantage (or disadvantage possibly) of seeing a dyno sheet on my motor with wet sump and east coast 92 octane (which I have heard is a TON better than our Calif 91 octane crap). Supposedly they did 8 pulls and peaked at 730-something hp and 609 ft lbs.

I have the dyno for a full day so we will tinker with as much as we can.

That said, with the addition of the dry sump, I am targeting 750 hp @ 7k rpm or less and 625 ft lbs.

I think with Mr FE's cubes he should take the avg torque win but I hope to get him on the top end. :D

EDIT: And yes I know dynos are tuning devices and not to see who can win the horsepower contest. We plan to fully utilize the dyno day to sort out his motor and dial it in. Will be a first for me.

Thinking back it seems we answered this question twice.:D


:cheers:

Sounds like a bunch of terminator owners up in here!

whine whine whine...


:lol:

I wanna play!

437sbc, Dart aluminum block , est. 11.5/1, for pump 93
400+ cfm RFD 15* heads
Ported Mopar 5007420 single plane
Holley 950 ultra, may upgrade to a Braswell or Prosystems with road race floats
Solid roller custom spec'd by my builder
Callies lightweight rotating ass, Diamond pistons, Morel lifters, Jesel pro Series, Blah, blah blah

Should be on the dyno in Dec. Hoping for close to 800hp, 650tq

When you run over 25 events and 3500 street miles with not one single mechanical failure, let's talk. :D

That engine was one of the most powerful and reliable engines this circle has ever seen. If we would have been able to pick the cylinder head, use a single plane, and a bigger carb, you wouldn't have a leg to stand on. :unibrow: I decided to recycle a few things from my first mistake, I mean engine. :lol: It was the perfect combination for pro touring.

Reliable for an old school motor, yes. One of the most powerful and reliable in our circle, now that is a Todd statement. :unibrow: You know the OLC makes similar power and drives more that 3500 miles in one week, every year, and has done so without issue, right?

And before you have a comeback about LS engines, let me just, "I know, I know..."

I said one of the most, not the most. For old school, likely the most. The ribbing I could give you right now. :D I'll save it for next time I see you.

I like it. DG add him to the poll even though he's going to kick our A$$s:D

Its good to see the passion you had for your build that's probably why it turned out so sweet. :D BUT If you made those mods and I had "no leg to stand on" then it's not the same combo and the rest of the statements might not be true. You may have gotten even more use our of your trailer.:unibrow:

Now my ancient big block is not targeted at peak hp or torque trust me it is designed FIRST to be reliable and durable just like it's ancestors that won LeMans. Blair regularly builds 900+hp FEs for SS competition so he and even I know where we left plenty of hp on the table.

It wouldn't have changed the reliability. Streetability and autocross ability is another debate. :unibrow:

Alright, I suppose I have to give credit where credit is due. That engine in Payback is probably more docile and driveable that 90 percent of the modified LS engines I've driven. when I had to take the car down the street to that car show, it was totally the opposite of what I expected. Despite being loud and nasty sounding, it was super easy to drive. I would even complain about having to drive it in L.A. Stop and go traffic.

Rob, if you want your engine to be better than Todd's you should probably let me drive it to see how it compares. :unibrow:

Dave, I don't need to drive your car. I had an engine that didnt have any torque for the street, and I had a Mustang with LeMans stripes, I can pretty much imagine what your car will be like to drive. Ok, that and I know I would just stall it and embarrass myself :lol:

In the past I've read a lot about how Iron heads make more power. I've had old time engine guys tell me the same thing.

Recently I've seen articles that debunk that myth or claim to. Those articles also say both head materials make the same power.

With an FE the head is actually small. The majority of the cool side is part of the intake manifold and so it's AL. The majority of the exhaust port is divorced from the main casting of the head. I think for Iron heads the design dissipates heat pretty well.

It does make you think more about cold valve lash.

I forgot about you driving my car. :lol: I'm surprised to hear you say it was more docile than the LS. I haven't driven many LS engines but cubic inches equals easy torque. That's why Rob's engine will be a much better street mill.

Chris... dude... that's really not a fair fight! :faint:

This baby cammed motor should have have plenty of torque for the street. A helluva lot more than my 377.

But yes I would enjoy watching you modulate the Tilton triple disk. I'll be sure to learn myself when no one is around. :D

Easy killer...

Awww, come on DG... same cubes, mine is wet sump, both peak around 7k. I'm just playin around anyway. I will race you guys around Laguna Seca if I make it out that way or i'll meet ya in the middle somewhere. To tell you the truth, i'm a little jealous of your setup over mine. Sb2.2 is sexyyyy, same with side oiler! People will look at mine and be like, "meh, looks like a normal sbc".