BUILT NPI DYNO NUMBERS!!!!

SonicStangGT · Jan 18, 2009

Man that bitch sounds nasty as hell.

mustangman9812 · Jan 18, 2009

Sounds great man! WOW LOL

BurningRubber · Jan 18, 2009

Dear God when that idle drops down...

TGJ · Jan 18, 2009

NitroDuck said:
Wow, history in the making, great numbers.

I remember when people said NPI GTs couldn't get out of the low 15s stock (even when they were.) Then they'd never run bolt-on 13's. Then they said they'd never make 300rwhp N/A.

Thanks for proving them all wrong. Now go out and get us a solid E/T!!

Well not to be mean but 300 RWHP N/A with NPI heads was done a long time ago. Johnny Langton made over 300 RWHP N/A with NPI heads about 5 - 6 years ago and he did it with an auto to boot. Last time I talked to him, his best was 12.16 @ 111 MPH with a 3700 pound TBird.

EPIK · Jan 18, 2009

Dear lord that thing sounds meeeeeeeeeaaaaaaaaannnn!!!!!

98COBRA281 · Jan 18, 2009

thanks guys

the idle is still a little funny, it want's to surge, and hang a little, but he said he will get everthing staightend out in the final tune.......

CobraRed_96_GT · Jan 18, 2009

Doesn't "built" engine usually denote forged?

Gearbanger 101 · Jan 18, 2009

CobraRed_96_GT said:
Doesn't "built" engine usually denote forged?

Yup....

K&N CAI, 75MM T/B & C&L PLENIUM, PI INTAKE, P&P NPI HEADS, POWERHEADS STAGE 2 CAMS, COMP BEEHIVE VALVE SPRINGS, MODMAX SS UNDERCUT VALVES, 3 ANGLE VALVE JOB, 10.2:1 COMPRESSON, LIGHT WEIGHT FORGED RODS, CLEVLITE MAIN & ROD BEARINGS, CANTON WINDAGE TRAY, FRPP HV OIL PUMP, STEEDA UDP'S, 180* T-STAT, EGR DELETE, FLOWTECH LONGTUBES, O/R H PIPE, MAC CAT BACK, 373'S, PRO 5.0, ECT.....

CobraRed_96_GT · Jan 19, 2009

Oh, i was under the impression he used a Mark engine's internals to bump compression and that they were stock.

Gearbanger 101 · Jan 19, 2009

I dunno...I'm just going by what's in his sig? Besides, I didn't think you could use 2V heads with 4V pistons? I thought there were piston to valve clearance issues....although I could be wrong?

CobraRed_96_GT · Jan 19, 2009

Gearbanger 101 said:
I dunno...I'm just going by what's in his sig? Besides, I didn't think you could use 2V heads with 4V pistons? I thought there were piston to valve clearance issues....although I could be wrong?

I just went back to his old thread:

stock cast crank, canton windage tray, ace forged i beam rods, mark 8 piston, clevlite main & rod bearings

Those Mark pistons are what gave him the compression. The rods are rated to 600hp.

98COBRA281 · Jan 19, 2009

haha, yeah, my buddy was the one that said "built"

98COBRA281 · Jan 19, 2009

Gearbanger 101 said:
I dunno...I'm just going by what's in his sig? Besides, I didn't think you could use 2V heads with 4V pistons? I thought there were piston to valve clearance issues....although I could be wrong?

yeah, it has '98 4v pistons in it, (2.6cc dish), and the rods, there forged i beams, sort of overkill, but i pretty much stole them.........

NitroDuck · Jan 19, 2009

TGJ said:
Well not to be mean but 300 RWHP N/A with NPI heads was done a long time ago. Johnny Langton made over 300 RWHP N/A with NPI heads about 5 - 6 years ago and he did it with an auto to boot. Last time I talked to him, his best was 12.16 @ 111 MPH with a 3700 pound TBird.

I'm not saying that this was the first time it's been done, I'm simply stoked that "normal" people are realizing these gains and doing so with "normal people" budgets.

People were running 14's with stock Non-PI GTs for years, but they were so few and far between that the general concensus, even in the supposed tuner mags, was that they were 15 second dogs. I think its safe to say that the same concensus was reached with NPI 4.6s. They were simply too expensive to build too 300rwhp and beyond.

Just one more notch on the belt for the NPI castings.

96SCstang · Jan 19, 2009

very impressive numbers man!! i am with you on sticking with the npi heads. i bet with some traction you can hit 12's.

02nightmaregt · Jan 19, 2009

OUTSTANDING!!! Damn that sucks my internet was down all weekend, i wish i could've jumped into this thread a little sooner. Awsome job dude REALLY good numbers. I was all like "Dayum, he mad some awesome numbers", when i saw that.

98COBRA281 · Jan 19, 2009

02nightmaregt said:
OUTSTANDING!!! Damn that sucks my internet was down all weekend, i wish i could've jumped into this thread a little sooner. Awsome job dude REALLY good numbers. I was all like "Dayum, he mad some awesome numbers", when i saw that.

haha, thanks man, hopfully within the next 2 weeks i will be posting even better numbers once i get some 24lb injectors and the final tune

westgastang5.0Coyote · Jan 19, 2009

numbers

Those are some awesome numbers you posted! Let us know when you get the final tune. You've definetely convinced me about the npi heads because I was going to go with the pi heads. It's safe to say I won't now. Awesome job man!

BUILT NPI DYNO NUMBERS!!!!

SonicStangGT

Active Member

mustangman9812

BurningRubber

TGJ

New Member

EPIK

Member

98COBRA281

CobraRed_96_GT

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Gearbanger 101

Straight Outta Locash

CobraRed_96_GT

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Gearbanger 101

Straight Outta Locash

CobraRed_96_GT

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98COBRA281

98COBRA281

NitroDuck

I put out on the 1st date

96SCstang

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02nightmaregt

To hell with your Mustang, I want to see your HOG!

98COBRA281

westgastang5.0Coyote

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