how much rwhp from this set up?

[Twister]

West Coast Viper...........

Competition ‘CNC' Valve job on intake and exhaust valve seats

Heads receive complete ‘CNC' porting

New bronze guides in intake & exhaust – honed for clearance

Production seats replaced with oversize ductile iron seats

Chambers reshaped for improved flow and combustion efficiency

Milled deck surface 0.015” to maintain original 78cc chamber volume

Milled intake face 0.015” to maintain intake alignment

JM Stainless 2.040 intake valves & JM Stainless 1.60 exhaust valves

Competition Cams Valve Springs

Competition Cams titanium keepers and retainers

New Dodge competition valve seals

MLS Updated Dodge Racing Head Gasket Set

Stage 3 Viper Race-profile camshaft (smog legal, Comp Coupe Cam)

Camshaft degreed to engineering spec's on intake stroke

Stage 3 Viper match Porting of intake manifold

Stainless Steel Racing Headers B & B Stepped with Burns Collectors

Port matched to heads

180 degree thermostat installed

Full custom exhaust and high flow converters installed

T&D (LeMans Series) Shaft Mount Rockers installed with special length Chromoly pushrods

Custom cold air intake with K&N high flow filters installed

Custom programming of JTEC engine management system ( DC tune)

West Coast Viper lightweight (17 lbs lighter) aluminum flywheel installed

How much rwhp/rwt would this be good for SAE..Im shooting for 550 plus..Will this do it?
__________________

 

[REDSLED]

Yes, that set up will get you there.

 

[Vic]

I think you will overshoot 550 by a bit, maybe closer to 575+ RWHP. Just my uneducated guess, based on some threads here about mods....

 

[Shandon]

Yea you should be in the 540rwhp+ range. If you up the compression you will be closer to the 580+ range.

 

[Twister]

Thanks guys.....BTW..Shandon..What are you pushin rwhp with your mods?

 

[Viper X]

Twister,

RWHP with any engine can vary greatly and depends on the condition of the engine. More compression seems to equal more HP to a certain extent. I have found that this package on a stock bottom end will reliably make between 500 and about 525 rwhp, depending on the engine and other variables. It can make more and we all know that dyno's vary.

Dan

 

[Twister]

Thanks viperX....Dang 525 rwhp would **** pretty bad...

I would think with just the

-TD roller rockers
-KN filters
-DC tune
-BB stepped headers
-exhaust with high flow cats
-light weight flywheel
-180 degree thermostat
-porting of intake manifold


Would be good for 500 rwhp on it's own, without the CC cam and head porting..

My 03 with only roller rockers/kn filters/no cats/no mufflers has 470 rwhp......

Man I hope it's more than 500-520 rwhp..Id be pissed!!!!!!!!!!!

 

[plumcrazy]

any changes to compression ?

 

[Joseph Dell]

with a combo like this one, it is ALL in the tune. It could run low 5xx to high 5xx. A small tune change will impact this one. But the potential is there for 600+rwhp. Run it w/ no cats with good gas and 575-600 is highly probable.

good luck w/ it! that'll be sweet!!!

JD

 

[Twister]

Thanks JD.....Thats what I was thinking as well but I havent seen to many go all out on the west coast viper set ups since their are much cheaper options available....

Im in Hawaii and it only cost 975$ for shipping to Cali...No good Viper tuners over here...

 

[black mamba1]

The key here IMO is the compression ratio and tune. For a c/r of 10 or more you can get 570-600 rwhp. Less than that expect 520-550 rwhp.

 

[Shandon]

Thanks guys.....BTW..Shandon..What are you pushin rwhp with your mods?

I am putting down 470rwhp & 500rwtq with my mods. I am looking to do a head cam swap also but you will want to be more agressive then the CC cam from talking to Jeff Moyers if you want the big power. Compression will need to go up too. I just spoke to Chuck Tator about this friday and he believes the 580-600rwhp should be attainable but he recommends getting the bottom end of the engine beefed up also.

 

[black mamba1]

I am putting down 470rwhp & 500rwtq with my mods. I am looking to do a head cam swap also but you will want to be more agressive then the CC cam from talking to Jeff Moyers if you want the big power. Compression will need to go up too. I just spoke to Chuck Tator about this friday and he believes the 580-600rwhp should be attainable but he recommends getting the bottom end of the engine beefed up also.

Yeah, call Chuck on this. He can build you a motor for boost (like mine) and still get good power, or max it out for n/a. Chuck is the man!

 

[Disturbed]

My setup is somewhat the same, but I have a smaller cam(crower stg 1 street cam), stock TB and stock intake mani, stock fuel system, stock gear, stock diff, stock clutch ect. I'm using bellinger's headers. With HF cats it made 565rwhp 610rwtq, this was also a soft tune for 91 oct fuel. The only thing I have that this system doesn't is 11.6:1 cr. Yes it works fine on 91 pumpgas.

So far, I haven't re-dyno'd without the cats. But I've done 11.1@131mph 1.9 60ft on street tires. I should be in the 575rwhp range with that mph.

 

[Nader]

Wow some nice numbers...

My setup is somewhat the same, but I have a smaller cam(crower stg 1 street cam), stock TB and stock intake mani, stock fuel system, stock gear, stock diff, stock clutch ect. I'm using bellinger's headers. With HF cats it made 565rwhp 610rwtq, this was also a soft tune for 91 oct fuel. The only thing I have that this system doesn't is 11.6:1 cr. Yes it works fine on 91 pumpgas.

So far, I haven't re-dyno'd without the cats. But I've done 11.1@131mph 1.9 60ft on street tires. I should be in the 575rwhp range with that mph.

 

[black mamba1]

My setup is somewhat the same, but I have a smaller cam(crower stg 1 street cam), stock TB and stock intake mani, stock fuel system, stock gear, stock diff, stock clutch ect. I'm using bellinger's headers. With HF cats it made 565rwhp 610rwtq, this was also a soft tune for 91 oct fuel. The only thing I have that this system doesn't is 11.6:1 cr. Yes it works fine on 91 pumpgas.

So far, I haven't re-dyno'd without the cats. But I've done 11.1@131mph 1.9 60ft on street tires. I should be in the 575rwhp range with that mph.

Really nice numbers!

 

[Camfab]

West Coast Viper...........

Competition ‘CNC' Valve job on intake and exhaust valve seats

Heads receive complete ‘CNC' porting

New bronze guides in intake & exhaust – honed for clearance

Production seats replaced with oversize ductile iron seats

Chambers reshaped for improved flow and combustion efficiency

Milled deck surface 0.015” to maintain original 78cc chamber volume

Milled intake face 0.015” to maintain intake alignment

JM Stainless 2.040 intake valves & JM Stainless 1.60 exhaust valves

Competition Cams Valve Springs

Competition Cams titanium keepers and retainers

New Dodge competition valve seals

MLS Updated Dodge Racing Head Gasket Set

Stage 3 Viper Race-profile camshaft (smog legal, Comp Coupe Cam)

Camshaft degreed to engineering spec's on intake stroke

Stage 3 Viper match Porting of intake manifold

Stainless Steel Racing Headers B & B Stepped with Burns Collectors

Port matched to heads

180 degree thermostat installed

Full custom exhaust and high flow converters installed

T&D (LeMans Series) Shaft Mount Rockers installed with special length Chromoly pushrods

Custom cold air intake with K&N high flow filters installed

Custom programming of JTEC engine management system ( DC tune)

West Coast Viper lightweight (17 lbs lighter) aluminum flywheel installed

How much rwhp/rwt would this be good for SAE..Im shooting for 550 plus..Will this do it?
__________________

So it sounds like stock ported JM heads with a small cam and headers. Mid 5's at the wheels.

 

[plumcrazy]

id talk to greg good before you do anything with heads. the guy flat out knows his stuff and is always willing to help. im betting he can do similiar flow numbers for half the cost or close to half.

 

[Viper X]

We had a club dyno day last year at DC with about 20 cars of various ages and mods.

One car that is very close to what you're looking at, an 03 SRT-10 with Stryker heads, cc cam (708), headers, no cats w/ side exhaust, rollers, tune, etc. as mentioned above made only 516 rwhp and 520 rwtq on a stock bottom end. That car was loud as hell.

They tried getting more out of it, spent hours testing and tuning. That was all they could get out of this one.

On the other hand, Camfab did similar mods to his GTS with Stykers, bigger cam and headers, etc. and made 586 rwhp (if I recall correctly).

You just never know.

These engines seem to respond well to compression increases, power wise. Just make sure and get it tuned right.

Dan

 

[Disturbed]

Wow some nice numbers...

....eeehhh....it's still slow. I need turbos.


To really make this motor sing, it needs a bigger cam, TB and a good intake mani, then a little re-tune. I should be sitting in the 625-650rwhp N/A.


I did something most people wouldn't do. I had this motor built, then with the stock exhaust, I broke it in easy. After the break in I took it to the dyno. It put down 523rwhp 581rwtq. After that, I installed the exhaust and tuned it with the Split Sec. It picked up 42rwhp.


Most of that power is the combo of the heads and cr. Greg Good did the heads, but these great heads are being chocked by the cam.

 

[Disturbed]

id talk to greg good before you do anything with heads. the guy flat out knows his stuff and is always willing to help. im betting he can do similiar flow numbers for half the cost or close to half.

I'm with Plumcrazy on this. Talk to Greg. He KNOWS heads and cams just as good if not better than any other tuner. He's a hell of a guy to boot. I'm sure he can get you over 600rwhp, just do what he recogmends.

Looking back, I should have asked Greg. But I didn't know any better and asked my "tuner". Turns out...Greg was a better choice, if I just would have asked. I'm sure this Viper would have some nice mid 600rwhp #'s

 

[Disturbed]

These engines seem to respond well to compression increases, power wise. Just make sure and get it tuned right.

Dan

Very true about the Cr. If your going to keep it a N/A street car, 11.5:1 works very well. Has anyone tried 12:1 on pump gas?

 

[1DumpedViper]

We had a club dyno day last year at DC with about 20 cars of various ages and mods.

One car that is very close to what you're looking at, an 03 SRT-10 with Stryker heads, cc cam (708), headers, no cats w/ side exhaust, rollers, tune, etc. as mentioned above made only 516 rwhp and 520 rwtq on a stock bottom end. That car was loud as hell.

They tried getting more out of it, spent hours testing and tuning. That was all they could get out of this one.

On the other hand, Camfab did similar mods to his GTS with Stykers, bigger cam and headers, etc. and made 586 rwhp (if I recall correctly).

You just never know.

These engines seem to respond well to compression increases, power wise. Just make sure and get it tuned right.

Dan

That was my buddy Marks car and I was standing there when it was dynod. He wasnt happy with the numbers at all. Took it back for tuning and no improvement. WCV keeps telling him its the intake and they could get 40-50 more hp when they come out with there new one.

 

[Shandon]

It's not the air intake but he needs a more aggresive cam to get the power out of those heads.