[oldman]

Originally Posted by 62nalide

A car making 480whp is running just that and some faster and NO WHERE near 600whp.

He was talking engine HP...

[oldman]

Originally Posted by 18ss376

To all:
I meant FWHP on all my comments.

I better to say engine HP, as FWHP, means Front Wheel HP.... just saying

[62nalide]

Originally Posted by 18ss376

To all:
I meant FWHP on all my comments.

In this industry WHP is used, been a long time since I've seen people use "fly wheel HP" like a long long long loooooooong time.

[oldman]

Originally Posted by 62nalide

In this industry WHP is used, been a long time since I've seen people use "fly wheel HP" like a long long long loooooooong time.

Then you are NOT old enough. The reference was 1/4 mile speed = a certain amount of ENGINE HP. That is all, and please many threads here talk about engine HP. Lingenfelter, Hennesy, and ALL OEM advertise engine HP. Engine HP is far more accurate then this mythical, STD, SAE, wheel, hub, programmable load "wheel HP".

[62nalide]

Originally Posted by 18ss376

FWHP = flywheel h.p. been around for ever...just sayin

About 80% of people if asked how much power they MAKE they will tell you whp.........only ones wanting to feel better will say Fly wheel HP

[danhr]

Originally Posted by oldman

STD is unicorn HP, better to talk about actual HP or as measured CF = 1.0 would also be acceptable.

So you want me to put the correction factor in SAE, throw some 15s with some 26's on it and inflate them to 60 psi? Would that be satisfactory to your standards?

The point of the post is that it's close enough that it can be achievable, if someone really wanted the bragging rights, and wanted to put forth the effort.

[oldman]

Originally Posted by danhr

So you want me to put the correction factor in SAE, throw some 15s with some 26's on it and inflate them to 60 psi? Would that be satisfactory to your standards?

The point of the post is that it's close enough that it can be achievable, if someone really wanted the bragging rights, and wanted to put forth the effort.

Not needed (I don't set the standards) SAE is the group that does that, all dyno software can display J2723.

As an example Hennesey uses STD so why use it? It is ricer HP / unicorn HP. The people that use are purposely distorting the dyno figure to puff it up. So why use it?

As an example feel free to post the actual as measured HP your car actually put the rollers CF= 1.0 and we can then see how much pretend as did not exist, HP the STD aka unicorn HP added. I believe the last factory use of STD was 1971.. just saying.

Your 500+ STD HP is about 478 SAE,I would assume you did everything to max that, and just tossed in the 60 PSI as a red herring. But as stated, just post your actual HP that car put to the rollers.....

[oldman]

Originally Posted by 62nalide

About 80% of people if asked how much power they MAKE they will tell you whp.........only ones wanting to feel better will say Fly wheel HP

90 percent of the statistics are made up

[ULTRAZLS1]

We are rated at 455 flywheel hp. SAE certified under the new standard. No way in hell we are getting 150 hp from E85 tune, headers, cai and intake manifold. A large majority of the gains with these cars at the track is removing torque management and trans tuning. IMO a full bolt on car is around 575 flywheel horsepower. If that. And results will vary at the track wildly depending on tune, weight and conditions. I just don’t see 600+ hp. FBO mods are proven for about 100 rwhp over stock. ~400 rwhp stock vs ~500. 550-575 flywheel hp.

You simply don’t gain 150 hp over stock from bolt on mods and E85. And nobody has dyno at 550 rwhp with bolt ons. Even in the best conditions and happiest dyno

550-575 flywheel hp is my opinion for a Max effort bolt on car. It’s already pretty obvious that drivetrain loss is only about 10%-12% these days

Numbers will also be all over the place because not everyone dynos in the proper 6th gear. It’s a crap shoot extrapolating rwhp to fwhp. But no way in hell I’ll ever believe 150 hp gain from bolt ons with an NA SS

[70chevelleSS]

Originally Posted by 18ss376

I scaled mine at the track with me in it & 1/4 tank of gas weighed 3900lbs.

my 1SS A8 weighed 3614 lbs with 1/4 tank of fuel and no driver.

[oldman]

Originally Posted by ULTRAZLS1

We are rated at 455 flywheel hp. SAE certified under the new standard. No way in hell we are getting 150 hp from E85 tune, headers, cai and intake manifold. A large majority of the gains with these cars at the track is removing torque management and trans tuning. IMO a full bolt on car is around 575 flywheel horsepower. If that. And results will vary at the track wildly depending on tune, weight and conditions. I just don’t see 600+ hp. FBO mods are proven for about 100 rwhp over stock. ~400 rwhp stock vs ~500. 550-575 flywheel hp.

You simply don’t gain 150 hp over stock from bolt on mods and E85. And nobody has dyno at 550 rwhp with bolt ons. Even in the best conditions and happiest dyno

550-575 flywheel hp is my opinion for a Max effort bolt on car. It’s already pretty obvious that drivetrain loss is only about 10%-12% these days

DA make a big difference a NA car is putting out say 4% more HP in the north east just before a snow storm and a car running in Austin in summer is 4% down in mid July when it is 114 degrees at the launch. 140 under the hood.

HP mag did a bhp of the lt1 at 495 SAE 518 STD, headers (with mufflers), smooth dyno intake, no water pump, cool water. They list the cooler water temp as +10 HP. No acc about 10 HP I'm kind of thinking like you; but the trap speed does not lie, and there is only so much weight to take out of a street car. So my thinking is under great DA, you can see say 4% more actual engine HP than SAE conditions, and probably the car is pretty stripped, low fuel, light rims, and the Oldlday driving she's on 98 lbs...

[ULTRAZLS1]

Originally Posted by danhr

My car made 500+ rwhp STD on a dynojet, and it baselined at 380 rwhp (a8). With a baseline of 380 rwhp and the 455 rating, that would be 16.4835% drivetrain loss.

500 / 0.83516 = 599 crank hp.


To answer the original question.... just throw a nitrous kit on a stock car, you will be well over 500 rwhp and cheaper than anything else.

So you gained 120 hp max. 380 to 500. Ona different day etc. 575 hp max

You were only 380 std stock in 6th gear? That ridiculously low. SAE in 6th gear is usually around 400. Let alone std. but that depends on conditions

[oldman]

long story short, you going to have to do a cam, and IMO, the AFM cams have too much compromise...My build would be pray ported intake, 93mm pray ported TD, E85 conversion, tune, 2" LT, off road pipes, stock box cut with green filter, the above 113 LSA AFM delete cam, nice top end, over 500 whp, and STRONG mid range, much stronger than stock, perfect for road race. You have to pull the heads so that would add 8 lifters, trays, bolts, head gaskets, and 4 hours. You need real valve springs too. So $500 or so more than a straight AFM cam with inexpensive conical springs and 4 hours. But if you are bucks down AFM cam $440, cheap springs 110 bucks, cam bolt and 2 cheap water pump gaskets should cove the cam swap... absolutely the cheapest way to go then:

AFM compatible cam, cheap springs, E85, 2" LT with offroad pipes, tune. Probably is just going to do it.


Next mods would be the Pray ported intake and 93 mm TB.


Then CAI, either RotorFab or modify the stock setup.

[oldman]

No e85, would also mean ported heads and real cam