Hey whats going on guys my latest dyno graphs!
Heres the details.... We still have the 380cc injectors in the car and tuned to that. So the car made 426.2 rwhp at 5919 rpms thats when the injectors maxed out and made 397RWTQ at 4600 rpms.. really they maxed at 5000rpms, so we were not able to go past all the way through 7100rpms... ALSO NOTE**** 9PSI thats what we were boosting at. I am waiting for my 800cc APS injectors and once they come in we are going to finsh her up. Also A/F was 13.7 at idle and at WOT 11.2 all the way through.

 

Good number that is pretty amazing with those injectors

 

Great numbers on the 380cc injectors... wish I dynoed with 17" or 18" wheels to see how close we were... not to mention my 3.93 gears.

Congrats.

??? Why does your sig say 450? Is that to the crank?

 

The graph says that is flywheel horespower? Is this corrected SAE? I don't trust Dynopack's.

Respect
JET

 

JET.. yes that is sae correct, and it is rwhp! so at the crank it is 491

 

WTF? Why not? IMO they eliminate variables like wheels/tire size weight adding to a more reliable tune and HP numbers.

Any numbers can be subject and no numbers are set in stone, but if there were a set of numbers to rely on, I would think dynopacks are the ones????

When and where are you getting APS 800CC injectors? Why not just get 550 or 650 CCs? Why the need for 800's??

 

I have a set of cower rods and wiesco pistons sitting in my garage!!! I am building my engine pretty soon, so we are shooting for 650-700whp with the
T66 turbo. Also the UTEC can scale down injectors so why not!

 

scaling is one thing, but you might find it hard to get a proper idle or partial throttle AFR with huge injectors like that.

Also, I would be looking at pauters and arias EDP for that HP goal along with a sleeved block. definetely not wisecos

 

Those are pretty good numbers with the injectors maxed out. Proof enough that 440's should be enough and 550's will be plenty (more than enough) for me. I forget what other mods you have (fuel return etc?).

 

My mods are Crawford headers, greddy evo2 exhaust, crawford plenum, pulleys, utec, and thats about it for performance.

Zivman, wiseco pistons are excellent pistons, we ran a tests on the arians and wisecos and found that the wisecos handle more power and last longer.
But it is all the customers choice so I went with the wiseco!

 

Thats awesome, I wouldnt push those injectors too far. Id like to see a dynojet dyno, because I know people have split opinions on whether or not dynapacks read high or lower. From my experience Z's dyno 10-20whp higher on dynapacks than dynojets putting you at around 400-410whp(dynojet).....good number regardless, but not what you had originally claimed --->450whp. We will def see better with the larger injectors, good luck with the motor build and the larger turbo

 

Yes but keep in mind that is we only went up to 5900 because the injectors are maxed out!! So we still have 7100rpms... also and that was at 9psi i am going for 9.5-10psi. We have no doubt that the car will hit 450!
On my experiences with dynojets the numbers were higher than our dynopack! My baseline N/A with exhaust,plenum,pulleys and intake was 251 and yours was 265 somthing! So in my case our dynopack is very accurate.

 

Great numbers! Is your tuning shop in Novi? I need to take a ride up there and see your Z. I'm only an hour away. Maybe we can video a run!

 

Well here's WTF!!!! My car at 98% injector duty cycle with 380 injectors made 386 rwhp @ 7psi on a Dynojet. No return fuel system, and stock fuel pressure. We are not getting the whole story here. Does this car have a return fuel system? What was the fuel pressure? It couldn't have been stock.

Dynapacks rely on too many user controlled input variables like tire diameter.

I agree 800 injectors are a bit overkill, and you will have other problems becasue of injector size such as poor idle, and poor spray pattern. 550's would be a better choice.

Respect
JET

 

You plan on upgrading your dump pipe? on top of that, I doubt that greddy will flow enough to get you to over 550 or so. I would think you will need at least a 3.5 dump pipe.

From my experience with the wiseco, yes they can hold power, but they don't wear very well. My local drag racer here uses them in his car and when he rebuilds, the pistons are pretty beat up in comparison to other pistons He uses them because he gets them for a 3rd the price of other pistons and he rebuilds once a yr.

 

Thanks.. yes sir!!! come down when ever you want... My car will be finished this week... new injectors, Everybody got me to change my mind and i bought RC550cc injectors, Greddy Oil Catch can, and turbo timer. Along with finishing up my maps.
Send me a pm and I will give you my cell and we can plan somthing/

 

A couple of things I'd like to note on both injectors and exhaust. On Friday I watched Jim Wolf make 550 whp and 600+ ft/lb with an Injen exhaust and 440cc injectors. What does this tell us... Even with what is considered a small exhaust 550 is possible. Furthermore everyone seems so scared of running injetors to 100% but its being done on cars that see the all the time with just raising fuel pressure...so that being said if these cars are tracking like this just how dangerous is it really? Jim Wolf himself told me he's done that for a long time and lets just say he knows a thing or two about tuning cars..

 

Miaplaya, good seeing you last Friday....nice to get away from my job and hang out for a couple of minutes..

 

Likewise Jeff...too bad you couldn't make it down to Jim's with us..we should all get together and have some lunch and talk Z next week..

 

1. Lunch never works being a teacher with 20 min lunch breaks. Dinner is always a possibility.

2. I want to run on a track with Greg V with his turbonetics. That must be something to experience, it is like feeding a child a pound of chocolate then handing him a machine gun.