The closest track to me is only 1/8 mile, so unless I spend some big bucks on traveling I probably won't ever see a 1/4 mile.

If you could give me an estimate on what my setup would run that'd be great.

engine: 385 fastburn crate engine(aluminum heads, 4-bolt main, google it to get the rest), vortec eliminator GMPP high rise, aluminum, single-plane intake, roller rockers, holley 750 double pumper carb (fed by holley blue pump). Hedman long-tube headers, true dual 2.5" exhaust (doesn't go over the rear end)

trans: TH350, built with 2200 stall and medium/hard shift kit, shifts HARD and FAST.

rear end/gears: borg-warner 9 bolt with posi, 3.27 gears. Rear tires are 275/60/R15's (front tires are pizza cutters, 15x4's). Oh, and I have a line lock for the front brakes.

My engine puts out 400 hp at the flywheel.

I need subframe connectors, plan to have those in the spring.

 

Oh, and to add in: My car has no A/C equipment or smog/emissions equipment (besides the two thrush-turbo welded mufflers)

 

http://www.wallaceracing.com/Calculators.htm have some useful calculators including one that will help you.

 

Thanks!! I'd tried a few of those calculators from various sites (that one included). According to all that I tried have a flat 12 second car (the calculators gave me answers ranging from 11.6 to 12.3 seconds). Maybe one day I'll find a track...and a truck and trailer and find out! haha.

 

mid-high 12's.

 

A single plane intake will be dead below 3500 RPMs (meaning your stall speed has to be above that to keep the thing from being a dog off the line). The Fastburn 385 is a 350 cid ZZ4 shortblock with Fastburn heads - it makes 385 gross flywheel HP, not 400. Its max RPMs is 5800, which means it doesn't justify a single-plane intake with the mild ZZ4 cam.

A bunch of mismatches here. I see low-13's on a good day.

 

I know that the 385 makes 385 horsepower. You skipped the rest of my posts. I added all the same components to the 385 that this crate engine has:

http://www.summitracing.com/parts/nal-88958604

That is where I get my 400 hp from. So are you claiming that the engineer's at GM put together a mismatched motor? because is comes with a single plane intake, the same one. I'm not into arguing over the internet, I'm just confused at your statement.

 

They put together a purpose-built, "spec" engine. And, it wasn't "your" purpose.

When I said "mismatch", I wasn't referring just to the engine - I was talking about intake, cam, stall speed, gears, and 1/4 mile ETs. I don't see it as a low-ET package, or a consistent one.

Understand I'm not trying to put anyone down. I'm just providing my assessment based on the information provided.

Could it be a good combo? Yes. Replace the cam, give it more stall and gears, good traction, and it'll be a low-12 second car.

 

Mmk, I follow ya now, a cam swap is actually in my future...at some point, haha. Thanks

 

High 12s, single plane and a 2200 stall probably aren't going to do you any favors.

 

Along with
T350 and 3.27 gears and a 275/60
There are a few mismatched components.......
3.73 would be the gear i would choose
3500 stall would be my choice

Please don't get me wrong i am not trying to be a jerk but 28 years of this crap gives me an upper hand on a few combinations to put you in the range you want.

 

Good point I missed that, I would actually go 4.10s with a 28" tire.

 

I'd like to add that the advertised HP numbers for these crate engines are rarely accurate. Companies usually dyno the prototype engine and more attention to detail is paid to the machining and assembly. The weather conditions and correction factors are rarely disclosed. Sure, it may have made 385 but I'll bet the farm that the subsequent mass-produced versions aren't making it.

And I have to agree with the others in this thread. Low compression, small cam coupled with a single plane intake is a mis match. I'm sure the power curve is horrible.

I'd put on an RPM Air-Gap intake and slide in something like an XE262HR. Also would run a smaller carb, higher stall and 3.73's. That combo would widen the power curve, make better tq and hp and be a lot more consistent.

 

i'd say low 13's also

 

Mmk, my future plans should alleviate some of the issues talked about here. This post was basically just so I could see where I'm sitting currently, I'm far from finished. I am saving up for the LT4 hot cam kit (comes with 1.6 roller rockers, which I would also put in to replace my 1.5's). That is why I went with the Vortec Eliminator intake, because it's designed to be the best bang for the buck when coupled with the fastburn heads AND that cam swap(on the low end and the high end).

Would I notice a difference in regular driving with a higher stall?

And lastly, 3.73's would be great but since this is just primarily a cruiser would my current gear be a little more street-able? I'm just thinking with the 3.73's i'd be screaming at 3,000+ rpms going around 55 mph, haha. I do agree that would be the gear to throw in this rear end if I wanted to perform the best.