[Z OH 6]

Originally Posted by Camaro1973

TBH anything over 700-750rwhp on the street is just ridicilous in my opinion.

I would tend to agree. I'm shooting for about 750 to 800hp at the crank. Just trying to figure out how close I can get to 800hp before street traction is no longer possible without a drag radial. Of course, I don't mean dead hooking on a street tire, but from a reasonable 30-40mph roll, I would like to have reasonable traction on a street tire.

[TRZ06]

Originally Posted by Camaro1973

TBH anything over 700-750rwhp on the street is just ridicilous in my opinion.

Actually, anything over 500hp is ridiculous.

For a heavy car 500HP is the sweet spot, for a light weight car it's around 400hp.

At those levels, its usable power. Anything above that without AWD is just wasted on the street.

[UFDUB]

It’s not just a horsepower number that decides whether you lose traction, but the amount and shape of the torque curve. A torque curve that is strong down low (like most supercharged motors) will have low down traction problems.

Turbos or centrifugal superchargers ramp in the torque and don’t hit as hard down low so are less likely to blow the tires loose and add more top end pull for roll racing.

[gtfoxy]

Originally Posted by Camaro1973

TBH anything over 700-750rwhp on the street is just ridicilous in my opinion.

Ridiculous: Noun; Just right, perfect, un-lacking.

Originally Posted by UFDUB

It’s not just a horsepower number that decides whether you lose traction, but the amount and shape of the torque curve. A torque curve that is strong down low (like most supercharged motors) will have low down traction problems.

Turbos or centrifugal superchargers ramp in the torque and don’t hit as hard down low so are less likely to blow the tires loose and add more top end pull for roll racing.

LOL

[Camaro1973]

Originally Posted by UFDUB

It’s not just a horsepower number that decides whether you lose traction, but the amount and shape of the torque curve. A torque curve that is strong down low (like most supercharged motors) will have low down traction problems.

Turbos or centrifugal superchargers ramp in the torque and don’t hit as hard down low so are less likely to blow the tires loose and add more top end pull for roll racing.

This is why I love the mag 2650 blower. Torque curve to me is better then the stock lt4 blower which is great down low and is a pile of di*** on the top end. However, then you have to deal with all the extra HP that goes with it.

[Camaro1973]

Originally Posted by Z OH 6

Anyone here have a Vengeance Racing stage 2 package or equivalent? They say it should be worth 100hp so I guess my real question is, how driveable is 750hp or so in these cars on stock size 305 street tires? I want more power but I don't want to add so much that a street tire become completely ineffective and I'm forced to use drag radials. Just trying to find the max limit.

Thanks.

I don't know what their stage 2 package is, but porting the blower, putting on a 103 NW TB, headers, pulley you should be close to 650 wheel.

[Z OH 6]

Originally Posted by Camaro1973

I don't know what their stage 2 package is, but porting the blower, putting on a 103 NW TB, headers, pulley you should be close to 650 wheel.

Stage 2 +85-100HP

Cold Air Induction System
ATI Balancer
Lower Supercharger Pulley
GM Crankshaft Bolt
Gates HD Green Supercharger Belt
2” Stainless Steel Longtube Headers
3” Stainless Steel Connection Pipes with GREEN Catalytic Converters
GM MLS LT Exhaust Gaskets
Mighty Mouse Solutions Catch Can
180* Thermostat
NGK High Performance Spark Plug Set
Vengeance Racing LT Plug Wires
Vengeance Racing High Temp Spark Plug Wire Insulators
Complete ECU Calibration


Stage 3 +120-130HP

Cold Air Induction System
ATI Balancer
Lower Supercharger Pulley
GM Crankshaft Bolt
Gates HD Green Supercharger Belt
2” Stainless Steel Longtube Headers
3” Stainless Steel Connection Pipes with GREEN Catalytic Converters
GM MLS LT Exhaust Gaskets
CNC Porting Service of Supercharger and Snout
103mm Throttle Body
Upgraded Aluminum Race Heat Exchanger
High Capacity Heat Exchanger Expansion Tank
Mighty Mouse Solutions Catch Can
180* Thermostat
NGK High Performance Spark Plug Set
Vengeance Racing LT Plug Wires
Vengeance Racing High Temp Spark Plug Wire Insulators
Complete ECU Calibration

[Markoz28]

Originally Posted by Z OH 6

Stage 2 +85-100HP

Cold Air Induction System
ATI Balancer
Lower Supercharger Pulley
GM Crankshaft Bolt
Gates HD Green Supercharger Belt
2” Stainless Steel Longtube Headers
3” Stainless Steel Connection Pipes with GREEN Catalytic Converters
GM MLS LT Exhaust Gaskets
Mighty Mouse Solutions Catch Can
180* Thermostat
NGK High Performance Spark Plug Set
Vengeance Racing LT Plug Wires
Vengeance Racing High Temp Spark Plug Wire Insulators
Complete ECU Calibration


Stage 3 +120-130HP

Cold Air Induction System
ATI Balancer
Lower Supercharger Pulley
GM Crankshaft Bolt
Gates HD Green Supercharger Belt
2” Stainless Steel Longtube Headers
3” Stainless Steel Connection Pipes with GREEN Catalytic Converters
GM MLS LT Exhaust Gaskets
CNC Porting Service of Supercharger and Snout
103mm Throttle Body
Upgraded Aluminum Race Heat Exchanger
High Capacity Heat Exchanger Expansion Tank
Mighty Mouse Solutions Catch Can
180* Thermostat
NGK High Performance Spark Plug Set
Vengeance Racing LT Plug Wires
Vengeance Racing High Temp Spark Plug Wire Insulators
Complete ECU Calibration

I would do the stage 3 but with the RF Big Gulp. Even with the stage 2 I would still get a rotofab intake.

[JSH]

Originally Posted by TRZ06

Actually, anything over 500hp is ridiculous.
At those levels, its usable power. Anything above that without AWD is just wasted on the street.

I could not disagree more. My 850 is usable IF you know how to drive with it. If you stomp my car or a stock ZL1 in 1st or 2nd gear in auto you will smoke the tires but in manual you can greatly reduce tire spin. Either way, these cars will struggle with traction on cool pavement and street tires.

[Maro_89]

Originally Posted by Z OH 6

Thanks, I'm coming from a 1000hp Hellcat(892whp) so I'm aware of traction struggles. I went too far with that car though, it was meant to be an ultimate street toy but the traction became non-existent without a Mickey Thomson ET Street R drag radial. The Nitto 555R2s couldn't handle that much power either. I'm trying to avoid going that far with this car. I'm adding 100hp and I think that may be it. I'm tempted to go further but don't want to go too far again.

Do you have 3.09 gearing in your Hellcat? Just curious cause there is a guy on the Hellcat forums who has the same power level as you with the 555r2 tires and he was able to hook from a 40 roll, but he has 2.62 gears though.

I was looking into putting on a set of Nitto 555r2s on the rear of my Hellcat which is stock for now and I'm curious if they will be able to the power down pretty well. The stock tires that I have now can hook at around 50 ish mph but it would be great if I can get on it aggressively from a dig and hook from a 20 roll. I'm not looking to put crazy power in the car as I still want to make it usable but I hope I'm making the right choice with the 555r2.

[Altered Carbon]

Originally Posted by TRZ06

Actually, anything over 500hp is ridiculous.

Originally Posted by Camaro1973

TBH anything over 700-750rwhp on the street is just ridicilous in my opinion.

What is this Tom Shittery you speak?

I'm just messing with you guys, but I do have to disagree, being someone who drives a 1400hp [20% drive train loss. 1350hp at a 15% loss... but who's counting?! lul] car.

All I can say is... throttle control. I get 1.8 0-60s on the street with some fat R888Rs. In colder weather though, not so much. But I live in a, "It's spring and summer 10 months a year." kind of place.

So, with good tires and a disciplined foot [driver mod], I find you can go far beyond those hp #s you mentioned and it still be usable and very fun on the street.

[Joshinator99]

Originally Posted by Altered Carbon

What is this Tom Shittery you speak?

I'm just messing with you guys, but I do have to disagree, being someone who drives a 1400hp [20% drive train loss. 1350hp at a 15% loss... but who's counting?! lul] car.

All I can say is... throttle control. I get 1.8 0-60s on the street with some fat R888Rs. In colder weather though, not so much. But I live in a, "It's spring and summer 10 months a year." kind of place.

So, with good tires and a disciplined foot [driver mod], I find you can go far beyond those hp #s you mentioned and it still be usable and very fun on the street.

Hey @Altered Carbon: what size R888Rs are you running?

[Altered Carbon]

Originally Posted by Joshinator99

Hey @Altered Carbon: what size R888Rs are you running?

I have 2 sets of 20s, 1 is 325/30 and the others are 285/35 for the stockers, and 1 set of 18s which are 315/30s. Even with the 285s though, I can get traction and still be quick. Just a good tire and warm roads, which I know many don't have. I've only seen snow 3 times in my life and I'm 36, so I don't really have to worry much about cold roads, which for me is my main enemy for traction.

[Z OH 6]

Originally Posted by Maro_89

Do you have 3.09 gearing in your Hellcat? Just curious cause there is a guy on the Hellcat forums who has the same power level as you with the 555r2 tires and he was able to hook from a 40 roll, but he has 2.62 gears though.

I was looking into putting on a set of Nitto 555r2s on the rear of my Hellcat which is stock for now and I'm curious if they will be able to the power down pretty well. The stock tires that I have now can hook at around 50 ish mph but it would be great if I can get on it aggressively from a dig and hook from a 20 roll. I'm not looking to put crazy power in the car as I still want to make it usable but I hope I'm making the right choice with the 555r2.

That was probably me you're talking about. I have 2.62 gears now, I had 3.09's at one point and they were unusable on the street. Going back to 2.62s helped. The Nitto 555R2s are the best street drag radial I've found yet. I can get the car to hook pretty decent from a 40mph roll but it will still break them loose a little, but its very controllable and goes from there. My username on the Hellcat forum is Blkout.

The Nitto 555R2s are very good for street driven drag radial, I think you'll be pleased in a stock car.