Booger, I have an appointment on Wednesday ...on a load base dyno
I wanted to get real numbers and I heard that it is the best way to tune the car.

 

what is a t-trim, and jesus-h-freakin-mary and joseph, 400 hp and you're not happy?

 

t-trim can spin at more rpm's than the blower that comes with the vortech kit for the z. so he's able to put smaller pulleys on to make more boost.

 

thanx!

 

The T-trim blower is rated at 6psi more and spins 5000 more rpm . Im very happy with the 400whp Im getting . I just expected alittle more . I also was confused because alot of guys said they made 400whp with the stock blower . Well come to find out that every one fudges the dyno numbers to read like Dynojet numbers . And we know that Dynojets are NOT real world , real street WHP .We dont FUDGE the numbers around here . We have Mustang load based dyno's .

 

I am impressed that you made 400whp on a mustang dyno with that low of compression. Im willing to bet that you would have only made 340-350whp with s-trim on the same boost levels with the 9:1 motor.

For those that dont know the T-trim will destroy the S-trim in exact comparison boost levels. I know for a fact my car felt quicker on 7-8psi with the T-trim than it did at 12psi with the S-trim on my Maxima. I should have the car back in a couple weeks with the setup in my sig. I'll be looking for 400+ myself but Im on a 3L so it will take a little more work.

 

[QUOTE=blubyu]I am impressed that you made 400whp on a mustang dyno with that low of compression. Im willing to bet that you would have only made 340-350whp with s-trim on the same boost levels with the 9:1 motor.

For those that dont know the T-trim will destroy the S-trim in exact comparison boost levels. I know for a fact my car felt quicker on 7-8psi with the T-trim than it did at 12psi with the S-trim on my Maxima. I should have the car back in a couple weeks with the setup in my sig. I'll be looking for 400+ myself but Im on a 3L so it will take a little more work.[/ , QUOTE]



blubyu
From what Ive beem told by my shop . The drop in compression of 1.3 would result in a lose of about 30hp . But Ive added cams and an extra 4.5 psi . Also the T-trim may build boost a little quicker than an S -trim , but 8psi is 8psi and 12 is 12 . Even with the stock SC-trim . The difference between the stock motor and the lower compression motor with cams , was only felt down low in the rpm band

 

Check it out...

https://my350z.com/forum/showthread....hlight=gspot35

 

gspot35...hows the car running ? Ive got a few other mods in mind for this winter . One of them may be yours . Bigger intercooler first , with 2.75 inlet and 3 inch outlet , 3 inch to the TB . Im at 13.5psi at 6500rpm and then the belt starts slipping . COuple of times it didnt slip and had 13.9psi at 6800rpm . I still have the 2.87 pulley on hold if I need it . Running pretty good right now .But noisy...piston slap . Im at 5psi at 4000rpm..8psi at 5000rpm

 

its kinda wierd how you booger and a few others are only making that much hp on a mustang dyno, i have the 2.87 pulley on and i am pushing 0.8 bar (11.75 psi) and made 418 whp on the mustang dyno without any belt problems...i also am running the stock S trim blower...i am putting in 10.3:1 Arias pistons and crower billet I-beam rods on monday too, then we are going to see what the blower can handle after the build before upgrading it...

 

What was the A/F on the dyno? Are you running the SS Box and a walbro, or just the standard aux pump?

Numbers definitely sound low, and aren't mustang dynos supposed to inflate numbers?

 

A/F was between 12 and 13 sometimes dipped into high 11's but not enough to hurt....im running the SS box right now and the aux pump. i have a walbro goin in with the motor build along with other stuff....and no the mustang dynos show real streep hp...dynojets are inflated cuz they are not a load based dyno...

 

If your A/F is between 12 and 13 and its holding up to 11.7psi and 415whp ...you got a real good motor . Have fun

 

well, i mean, its ok to be a little cautious about stuff, but being overcautious bout your ****, i.e motor, wont be any fun...there are extents to me testing my engine/charger too, which is why im doin my motor build next week...after that we are going to play with the charger to see what we can do...

 

When you go to a better flowing, bigger blower or turbo on the same boost level it will net you more power because it flows more air per PSI and it runs cooler.

 

I think the acronym you are looking for is CFM. Cubic feet per minute. Unless you change pipe sizing you will not be able to increase CFM. When you have a TT for instance think of the SC pipe as almost double. To build Xpsi you need xcfm. The more pipe size, the more air volume it takes to make PSI. Hope that makes sense...

At any rate, Booger when you increase your pipes, you are either going to lower boost the motor sees or create mad turbulence in the reducer to fit in the TB or the IC.

 

The idea now is to go to a bigger intercooler with 2.75 inch in and 3 inch out with 3 inch pipe to the TB

 

Good luck with the build . And if you didnt know . Mustng dyno's can be made to put out Dynojet hp numbers very easily . When I dyno my car , the operator loads the dyno with info for a 3700lb car ...car 3400lbs...SC and mods 100lb's...Me 200lb's .

 

yeah man....ill keep you guys posted with the results and stuff...

 

Whatever Actually my car made 420rwhp/340rwtq on a Dyno Dynamics dyno which is also a load based dyno. Besides, its hard to compare from one dyno to another even if they are the same type. Only true comparisons would be to have all these cars at the same dyno.

Anyway, nice numbers! Good luck trying to hit 450. I think to do so, tho, you'll have to go inside the tranny and build it up to handle the extra power.