The New SN95 Cobra Official Dyno Thread

SVTPete83

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Forged teksid block
B heads
Ported intake
T trim at 14 psi
Stock manifolds
573rwhp
520tq

More to come as longtubes should be here this week!
 

RI GT500

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My 348" F-1R made 1043 rwhp and 780tq. Hoping my 598" and F-3 makes a little more
 

Drago

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Il
Dyno Jet
5.0 Liter----1994Cobra----210HP----265TQ----Stock Motor 24,000Miles on it


Dyno Jet
5.0----1994Cobra----297HP----335tq---- Upgrades Sam e car after up grades 24,100 miles on it
76mas air C&L
Trick Flow Heads
Cobra intake stock
Stock TB
24lbs injectors stock
Crane 1.72 larger stud roller rockers
Pushrods lifters
APR bolts
Comp Cams ex energy plus1
Mac Shorty Headers
BBK HPipe no cats
Dyno Flow Exhaust
SCT Chip tuner
3:55 gears
 

Boosted-Cobra

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from LA - live in NASHVILLE
I am trying to figure out a safe boost level for my 5.0 with a forged bottom end.

I would just call the engine builder and ask, but he had a stroke and closed his shop, Randy Richie at Performance Associates in San Dimas Ca...

The car used to have a smaller pulley and have no idea where it is now.


I currently have a 4 inch pulley and 8 pounds using a V-2 Vortech.

How far can I safely go with the boost I wonder? on pump gas?

I do have aluminum heads, but no intercooler.

And no idea what the compression is either.

Vortech says they put 10 pounds on stock engines with pump gas.

My motor dyno'd 430 at the wheels back in 2001... before the 4 inch pulley.


Any ideas what pulley I should get?

Vortech said each pulley size down is worth about 1 to 2 pounds of boost.

3.8" making my boost 10 psi and a 3.6 making it 12 psi maybe...


Comments?
IMG_5730_zpsrdwuxmgh.jpg
 
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cbrown9064

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cbrown9064

1996 Cobra-----HP468-----TQ375-----TMP 80 IAT-----Novi 2k, Paxton A-2-A, stock bottom end, B heads, 60lb, 255, DirtyDirty tune. Mustang Dyno.
 

SVTPete83

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I am trying to figure out a safe boost level for my 5.0 with a forged bottom end.

I would just call the engine builder and ask, but he had a stroke and closed his shop, Randy Richie at Performance Associates in San Dimas Ca...

The car used to have a smaller pulley and have no idea where it is now.


I currently have a 4 inch pulley and 8 pounds using a V-2 Vortech.

How far can I safely go with the boost I wonder? on pump gas?

I do have aluminum heads, but no intercooler.

And no idea what the compression is either.

Vortech says they put 10 pounds on stock engines with pump gas.

My motor dyno'd 430 at the wheels back in 2001... before the 4 inch pulley.


Any ideas what pulley I should get?

Vortech said each pulley size down is worth about 1 to 2 pounds of boost.

3.8" making my boost 10 psi and a 3.6 making it 12 psi maybe...


Comments?
IMG_5730_zpsrdwuxmgh.jpg
I wouldn't be worried about your bottom end as much as your block at that point. Stock 5.0 blocks tend to split at 500hp. I wouldn't up it much more then that without a girdle and inter or after cooler setup.
1996 Cobra 300HP 290TQ Mystic bbk longtube and H-pipe, flowmaster catback, CAI, and 4.56 gears
This used to be my mystics setup. It was so fun!

-SVTPete
 

'97cobraSVT

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97 Cobra with Stock internals - D1SC Procharger, CX Racing Intercooler Kit, 50mm TIAL BOV, VMP HPX slot style MAF, MMR IMRC Deletes, 340lph pump, 42lbs injectors, billet rails and regulator, NGK TR6 plugs, C&L intake pipe, Anderson Power Pipe, stock manifolds, BBK x-pipe, borla stingers, stock T45, Stage 2 king cobra clutch, 4.10 rear, Rev limiter lowered to 6,000 rpm to prevent the blower from making unsafe power for the stock internals on the motor.

Tuned by Pete at Performance Dyno in New Hampshire on a 90+ degree day.

414hp / 380 ft./lbs tq.
 
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FryinRyan*069

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1996 Laser Red Cobra. 21K original miles.
- Stock Internals/Block
- V1 S-Trim Vortech HO Intercooled w/ 10lb. Pulley
- 48lb. Injectors
- Steeda 4-Row Aluminum Radiator
- MSD Coil Packs/Wires
- BBK Ceramic LT w/ off-road H Pipe
- Bassani SS Cat-Back
- Walbro 340 Pumper
- SCT 90MM MAF
- SCT X4 Dyno Tuned by R/T Tuning
- 3.73 Rear

85* - 467HP / 410 TQ on 93 - Dynojet.
 
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98 N/A 4V

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Dynojet

98 N/A 4V----1998 Cobra-----415-----360-----96*F----- N/A 5.4 4v, blower cams and bolt-ons.

I'll post up the Novi numbers this summer.
 

Blown_By_You

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I wouldn't be worried about your bottom end as much as your block at that point. Stock 5.0 blocks tend to split at 500hp. I wouldn't up it much more then that without a girdle and inter or after cooler setup.

This used to be my mystics setup. It was so fun!

-SVTPete
Wut.. Girdle won't stop the block from breaking. Neither will an aftercooler.

Sent from my VS987 using Tapatalk
 

SVTPete83

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On a 5.0 stock block? A girdle would definitely help. It's not as good as getting an aftermarket race block, but it would definitely make it stronger. An aftercooler would allow cooler charge temps and keep it from detonation. Both would actually help.

-SVTPete
 

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