445", TFS 245, Fast 102, direct port, 4L60E = 605/550 N/A
12-22-2014, 09:16 AM
#1
445", TFS 245, Fast 102, direct port, 4L60E = 605/550 N/A Posting this up to share with you guys so you can see what a nasty dual purpose engine combination looks like. When this customer contacted me, he told me he wanted the ultimate performance on nitrous AND on motor. Normally that isn't an issue on small amounts of nitrous, but this customer wanted to spray up to a 400 shot! That usually requires parts and a camshaft profile that don't allow an engine to run too well on motor.
I like a challenge though, and this motor had some really nice parts to work with that I knew could end up making killer power on motor and on the bottle.
Here is the run down on the combination:
-445 cubic inches
-5.3 aluminum truck block with Darton sleeves installed by Race Engine Development
-4.155" bore Wiseco pistons with H13 tool steel pins
-Callies Compstar H beam connecting rods 6.125" length
-Callies Compstar 4.100" stroke forged crankshaft
-12.4:1 static compression
-JP single roller timing set
-Custom Tick Performance camshaft 258/275 .677/.680 115+4
-Morel 5206 link bar lifters .750" roller wheel
-7.600" 3/8" .080" wall push rods
-Yella Terra 1.7 roller rockers
-PAC 1207X RPM Series valve springs 175# seated 470# open
-BTR Ti retainers, BTR chromoly locators, BTR locks, BTR seals
-Total Engine Airflow Trick Flow Specialties 245cc 13.5 degree cylinder heads
-Fast 102 ported by Tony Mamo
-Nick Williams 102mm cable driven throttle body
-8.8" rear end with 31 spline axles, 4.10 ring and pinion
-2" primary long tube headers with 3.5" collectors
-3.5" dual exhaust, 3.5" x-pipe, 3.5" inlet 4" outlet Magnaflow race mufflers
-RPM Level 7 4L60E transmission
-Circle D 245mm 3600rpm stall converter
-325/45/17 M&H drag radials
-17x11 Billet Specialties wheels
-Dyno pulls were run with VP MS109 oxygenated fuel
-34* timing on motor
-26* timing .026N jets (rated 200hp)
-22* timing .032N jets (rated 300hp)
The customer and tuner then put .032N jets (rated 300hp) in the direct port. By this point the bottle was getting pretty empty for this size jet and bottle pressure dropped really bad right after the nitrous hit. You can see this by the large drop in torque/hp output. I feel it would of made a bit more power had a fresh bottle or dual bottles been used. The fact that it still picked up 400rwhp on a 300hp rated jet is mind boggling.
Myself and the customer are extremely pleased with the outcome. The engine makes huge power and torque on motor and makes torque a la carte on nitrous. It is far from a high RPM screamer, but for a street vehicle that needs torque by the boatload and average power for days this combination takes the cake.
Roll races and track days should be pretty dang fun in this thing. The owner is planning on going with dual 15# bottles to help with pressure drop and to make sure this healthy engine has enough nitrous volume to keep it well ahead of the competition.
I like a challenge though, and this motor had some really nice parts to work with that I knew could end up making killer power on motor and on the bottle.
Here is the run down on the combination:
-445 cubic inches
-5.3 aluminum truck block with Darton sleeves installed by Race Engine Development
-4.155" bore Wiseco pistons with H13 tool steel pins
-Callies Compstar H beam connecting rods 6.125" length
-Callies Compstar 4.100" stroke forged crankshaft
-12.4:1 static compression
-JP single roller timing set
-Custom Tick Performance camshaft 258/275 .677/.680 115+4
-Morel 5206 link bar lifters .750" roller wheel
-7.600" 3/8" .080" wall push rods
-Yella Terra 1.7 roller rockers
-PAC 1207X RPM Series valve springs 175# seated 470# open
-BTR Ti retainers, BTR chromoly locators, BTR locks, BTR seals
-Total Engine Airflow Trick Flow Specialties 245cc 13.5 degree cylinder heads
-Fast 102 ported by Tony Mamo
-Nick Williams 102mm cable driven throttle body
-8.8" rear end with 31 spline axles, 4.10 ring and pinion
-2" primary long tube headers with 3.5" collectors
-3.5" dual exhaust, 3.5" x-pipe, 3.5" inlet 4" outlet Magnaflow race mufflers
-RPM Level 7 4L60E transmission
-Circle D 245mm 3600rpm stall converter
-325/45/17 M&H drag radials
-17x11 Billet Specialties wheels
-Dyno pulls were run with VP MS109 oxygenated fuel
-34* timing on motor
-26* timing .026N jets (rated 200hp)
-22* timing .032N jets (rated 300hp)
The customer and tuner then put .032N jets (rated 300hp) in the direct port. By this point the bottle was getting pretty empty for this size jet and bottle pressure dropped really bad right after the nitrous hit. You can see this by the large drop in torque/hp output. I feel it would of made a bit more power had a fresh bottle or dual bottles been used. The fact that it still picked up 400rwhp on a 300hp rated jet is mind boggling.
Myself and the customer are extremely pleased with the outcome. The engine makes huge power and torque on motor and makes torque a la carte on nitrous. It is far from a high RPM screamer, but for a street vehicle that needs torque by the boatload and average power for days this combination takes the cake.
Roll races and track days should be pretty dang fun in this thing. The owner is planning on going with dual 15# bottles to help with pressure drop and to make sure this healthy engine has enough nitrous volume to keep it well ahead of the competition.
Last edited by Sales@Tick; 12-22-2014 at 10:58 AM.
12-22-2014, 10:54 AM
#4
Unfortunately I cannot disclose what vehicle this is in or post an idle video. I was sworn to secrecy as this is grudge car that is also driven on the street a lot. I was told I could post the numbers if I didn't mention the vehicle or customer's name. 
It has a healthy idle to it with the 4" race Magnaflow mufflers, but the customer reports that the cubes soak it up nicely and that it isn't unruly in the least bit to drive.
It has a healthy idle to it with the 4" race Magnaflow mufflers, but the customer reports that the cubes soak it up nicely and that it isn't unruly in the least bit to drive.
12-22-2014, 11:08 AM
#6
We've used these Compstar rods up to and over 1000rwhp without issue. Heck, I even have Compstar H beam rods in my motor and it makes more HP than this motor.
That said, my motor makes peak torque at a much higher RPM than this engine so the rods in my engine are not being loaded nearly as much as these. My motor also makes about 250rwtq less than this one.
I'd say he's really testing the limits on these the way it sits right now. Next step up would be a Dragonslayer crankshaft and a set of Compstar I beams. Then from there it would be the Ultra H beams and from there Ultra I beams.
12-22-2014, 11:54 AM
#7
TECH Veteran
Nice combo!! Any track times ?
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12-22-2014, 12:01 PM
#8
Martin said it is a grudge car. I'll bet my left and right ********* you'll never find out. Hell, the guy who ones the vehicle won't even let Martin divulge what kind of vehicle the motor is in. I'd say you'll successfully find the cure for cancer before you find out what ET's this "vehicle" puts down.
Last edited by Rise of the Phoenix; 12-22-2014 at 12:38 PM.
12-22-2014, 12:41 PM
#9
Martin said it is a grudge car. I'll bet my left and right ********* you'll never find out. Hell, the guy who ones the vehicle won't even let Martin divulge what kind of vehicle the motor is in. I'd say you'll successfully find the cure for cancer before you find out what ET's this "vehicle" puts down.
This made me LOL. Unfortunately it's true. I will say it's a bit too cold right now for him to be making any hits on the track, but we may see some roll racing from this vehicle soon enough.
Can you at least tell us what great state this car hails from? Kind of curious if it's going to be showing up at TX2K15, or any of the Streetcar Takeover events in 2015. 
12-23-2014, 04:04 PM
#16
