Project Blue Blaze!

[beefcake]

That is what I like to hear! Any change in afr at wot?

I'll let ya know tonight!

 

[ROUSH1711]

Very trick with the TB spacer! Nice work,look great!

 

[jodadejss06gt]

That engine bay is just killer! Good work man and I love the pics of the engine w/o heads(those pistons are sexy)

 

[Full_Tilt]

18 degrees of advance at 13 psi? What was the cam timing like?
Seems like either the LSA was kept small, or the ignition timing is overly conservative.

 

[beefcake]

So, made some changes. Added the jpc heads and cams, took off the boss intake, added some more boost, and cut some timing.

My launches have been more than lackluster with the 3.55's, drop in compression, and boss intake. I was down alot of low end with the compression drop, and even more with the boss.

Car has pulled a best of 1.949 in the 60 area. The converter should help with that quite a bit, it will be going in next week.

The newest setup looks like it should help out down low a little as well.

The graph compares my 698 w/13 psi @ 7500 with 22 degrees and boss intake vs 709 w/16 psi @ 7500 and jpc head cams. I really wanted to add 2 more degrees, but wasn't able to touch base with Jon to see his thoughts on timing while I was on the dyno. I know with 20 degrees with the boss, i was only making 645/518. The extra 2 degrees jumped me another 54 rwhp.

Finally broke 700, and the curve is much nicer, and has over 700 from 6435 to 7450. The heads and cams seem to really help good up top on carrying the power out.

The low end has about 20 more straight out, and the mid power is much better. Looks to be up about 60 or so hp and torque for quite a while across the middle. Torque has over 500 ft/lbs from 4300 to about 7350

 

[JEWC_Motorsports]

Nice, glad to see it coming along. Making great power.

 

[Wicked GT]

Very nice! Hope to be in that elite power class one of these days...

 

[pacettr]

Wouldn't (in theory) the Boss intake help once you get the right converter?

 

[05yellowgt]

I'm also wondering what the curve would look like with the added boost and the BOSS intake. Probably not as good down low, but up top I could see a huge gain. Combine that with the converter and it should get out of the hole a lot better.

 

[beefcake]

Wouldn't (in theory) the Boss intake help once you get the right converter?

One would think so but...

I'm also wondering what the curve would look like with the added boost and the BOSS intake. Probably not as good down low, but up top I could see a huge gain. Combine that with the converter and it should get out of the hole a lot better.

We did some testing with and without the boss, with and without the heads and cams. With the boss and heads and cams.

I can't discuss numbers right now, but on equal boost with equal timing the heads cams out performed the boss intake.

The heads and cams by themselves also out performed the heads and cams with the boss as well.

Don't ask, don't know why. But we spent the last 5 weeks on and off the dyno and track testing.

 

[BMR Tech]

Very good info Terry. Thanks for sharing.

Curve looks much nicer.

The converter should REALLY wake that thing up outta the hole. 3+ tenths, easy.

What size converter? By looking at your graph, a 4500 - 5500 would be optimal. But I know you are wanting it retain really good manners. Hopefully you atleast went 4,000?

 

[19COBRA93]

The heads and cams by themselves also out performed the heads and cams with the boss as well.

I'd like to see that graph.

 

[beefcake]

Wouldn't (in theory) the Boss intake help once you get the right converter?

Very good info Terry. Thanks for sharing.

Curve looks much nicer.

The converter should REALLY wake that thing up outta the hole. 3+ tenths, easy.

What size converter? By looking at your graph, a 4500 - 5500 would be optimal. But I know you are wanting it retain really good manners. Hopefully you atleast went 4,000?

If the converter only gives me .3 i will shoot myself. lol.

In atlanta, moving my staging back to go from a 2.00 to a 1.949 netted me .11 in the 1/4.

I am hoping for at least .3 off my 60 and .6 in the quarter. Minimum. I'll take 1.64's on a street stall on a car this heavy. I'd love to see some 1.5's, but setting my sites low.

If the car 1.5's, with the power i'll expect .7 to .8 more. The car ran 11.0's @ 131.75. Last year with 1.74's with less power (around 575 rwhp) it went 10.8's @ 128. Stall will be huge for the car.

 

[BMR Tech]

I was referring to sixty.

I can see half a second in ET when you get it squared away, probably more as time goes by.

 

[beefcake]

I was referring to sixty.

I can see half a second in ET when you get it squared away, probably more as time goes by.

lol, okay,

with the way the car pulls up top. I see it doubling whatever it gets in the 60'.

We'll see soon enough!

 

[r.barn]

Don't ask, don't know why. But we spent the last 5 weeks on and off the dyno and track testing.

Tell you why.

Small cubes + huge heads + short runner intake = no velocity.

You're killing intake path velocity with the Boss intake and it is not filling your cylinders as well as the long running stock intake.
This probably why just the cam only swaps performed better as well. The stock heads on these engines are HUGE for 302cid motor. Keeping intake velocity up is more critical. I would think a quick spooling turbo would responded MUCH better to the Boss intake vs. a centrf. s/c with it's N/A like flow characteristics.

 

[pacettr]

Tell you why.

Small cubes + huge heads + short runner intake = no velocity.

You're killing intake path velocity with the Boss intake and it is not filling your cylinders as well as the long running stock intake.
This probably why just the cam only swaps performed better as well. The stock heads on these engines are HUGE for 302cid motor. Keeping intake velocity up is more critical. I would think a quick spooling turbo would responded MUCH better to the Boss intake vs. a centrf. s/c with it's N/A like flow characteristics.

I would think that 13-16psi would create plenty of velocity...?

 

[r.barn]

I would think that 13-16psi would create plenty of velocity...?

It's my understanding centrf. s/c boosted engines tend to behave same as N/A engines. You are not really changing flow dynamics of the intake path all that much, you are just increasing the density of the air charge.

Might be wrong.

Intake flow path dynamics is a VERY complicated issue. More so than most people realize. Stroke, valve timing, runner length, runner cross section and a myriad of other things all come into play.

 

[RedMustang]

Thanks for sharing

 

[KonaGT]

Very good info Terry. Thanks for sharing.

Curve looks much nicer.

The converter should REALLY wake that thing up outta the hole. 3+ tenths, easy.

What size converter? By looking at your graph, a 4500 - 5500 would be optimal. But I know you are wanting it retain really good manners. Hopefully you atleast went 4,000?

I agree, put a 5-5500 converter in this thing. Do you have the new converter yet, or waiting on it? What does it flash to? Are you using a transbrake or footbraking it?