This is a 2001 Prelude VTEC, a NON SH. A normal Prelude VTEC.
The 158 WHp was the baseline dyno runs, rught off the showroom floor and again at 3,000 miles.

The 173+ is after I put my entry level performance package on it. Which included:

DC sports header (IB Modified)
Carsound Cat
Exhaust System ($200 Muffler shop special IB style)
Cold Air intake pipe
OBD1 Conversion
P72 ECU
Hondata Stage 3 with launch control and full throttle shift control.

All this done with stock cam gears, stock fuel pressure regulator, and not touching the internals of the motor whatsoever. This is just the beginning.

My level 2 package should be done by next week. Which will include pistons, ultralite rods, a slight milling and some cams.

These mods managed to GAIN a solid 9 lbs of torque before VTEC and a HUGE amount of torque after VTEC.

Car runs like a champ. And also, you can't even tell when VTEC hits because as you can see from the graph, instead of the HP jumping up like 25 HP in 200 RPM, it only jumps up 8 HP.

Thank hondata for that one.

Car gets exceptional gas mileage also.

Jeff

 

and here they are: 1). How much does/will the package cost,could you itemize it if possible? and 2). if I already have a DC header, how much would the IB modification run?, and lastly 3). w/ the hondata obd1 package are you using a p72 or a p13 ecu, and which injectors, ob1 h22 or obd2?

 

I made 173.45HP and 141.32lb.ft on my 2000 Base with just header, exhaust, and the stock airbox with no resonator and a K&N...

Andrew


[Modified by aklucsarits, 11:24 PM 2/17/2002]

 

..roughly 50k miles and DC sports 4-2-1 Header, Greddy Exhaust, Stock airbox, k&n drop-in filter, and no resonator along with 17*7 inch Volk GTN's w/ 215*45 tires, made 166hp and 138tq. What I/H/E combo are you running? And, what size wheels/tires were you using during the test.


[Modified by bb6h22a, 6:08 PM 2/17/2002]

 

See: https://honda-tech.com/zerothread?id=93591

Mugen Header, Mugen Cat-back, OZ Racing Superleggeras with 215/40/17 Paradas. I was at 27,000 mi at the last dyno.

Andrew

 

don't make us wait TOO long for those stage 2 results, should be intersting.

 

Not bad...with simple bolt ons No internal work and a V-AFC I produce 178hp and147tq...On this new motor ( Still break-in periods ) I can't wait to see when I dyno this one .......720 miles to go

STOCK INTERNALS...


[Modified by D.specs, 4:19 PM 2/18/2002]

 

Your baseline run is totally invalid. Without breaking in the engine, do you really expect your hp to be high? I think this is sooo misleading. Just by breaking in the engine, say 0 miles and 12000 miles, you will already find a difference in the hp. numbers. Thought that you should know better than to dyno the car right off the showroom floor and establish your baseline from there. Moreover, you were running it on 3rd gear, which gives a better number than 4th gear....

 

C'mon give the guy a break. It is his customer's car, he has no control over when the customer wants to dyno and upgrade his car... Of course the car will likely gain a few HP as it gets up to about 10,000mi... Even if the baseline was done at 100mi, how much power do you really think this car is going to gain in 2900mi? How much could the numbers possibly be inflated? If anything, I would have thought that the mods he put on that car should have made more power over the baseline - and it's likely they will as the motor continues the break-in process. Dyno this same setup again at 12,000 mi, and I'm sure it will be making more power than it is right now... If Jeff wanted to skew the numbers, he could have done so any number of ways to make his upgrade package appear to give even more power...

The fact is that he dynos lots of Hondas and tries lots of mods. He posts the plots for everyone to see and lists all the mods. I consider his contributions very valuable. Even if you want to be cynical and take his plots with a grain of salt, they are still a valuable resource for people who want to know what works to make power and what does not. Jeff is one of the few people on any Honda board that I have seen that goes to such lengths to share the info he has learned. He's the only person doing this amount of testing and baselining of the H22a right now, and I for one appreciate it.

Also, it is just the opposite. A 4th gear run will typically be marginally higher (+1% maybe) than a 3rd gear run. People typically use 3rd gear when they are doing lots of back to back tuning runs to save time and prevent excessive engine heatsoak.

Andrew

 

No, actually 3rd gear gives you a better horsepower reading than 4th. People try to run the closest gear with a one to one ratio which makes things more consistant.

I wouldn't pick these items as starter items, but the dyno is valid. The Hondata 3 is a bit extreme as a starter mod.

Are these things out with some kind of a group pricing package? Can you post a price?

 

That's incorrect. I always thought that was true too... Until I tested it: http://members.home.net/aklucsarits/...ECorrected.jpg

Green/black is my 1st run in 3rd gear - 160.3hp and 135.8lb.ft
Blue/light blue is my 2nd run in 4th gear - 162.8hp and 137.5lb.ft.

In 4th gear it was +2.5hp and +1.7 lb ft. You can see the entire plot in 4th is just a bit higher all the way across...

I did the test because the dyno operator was doing my run in 3rd gear, and I asked him to do one in 4th to see what the difference was. He said it would be a little higher in the higher gear - and sure enough it was.... He told me that's normal because drivetrain losses are higher in lower gears. If you wanted to inflate numbers, you would do it in 5th gear... if you could keep the car from stalling on the dyno.

Andrew

 

I can back him up on this. I made more HP and TQ in 4th gear also. I might consider using 3rd gear for dyno tuning since it would be faster and easier on the car...but I would finish the day with a 4th gear pull for your correct #'s.

 

No to **** of 98lude or anything...

but you didn't read what i wrote...that 158 was at 3,000 MILES

"The 158 WHp was the baseline dyno runs, rught off the showroom floor and again at 3,000 miles"

Maybe you didn't read that. I take no offense to your post though....

Jeff

 

The fact is that he dynos lots of Hondas and tries lots of mods. He posts the plots for everyone to see and lists all the mods. I consider his contributions very valuable. Even if you want to be cynical and take his plots with a grain of salt, they are still a valuable resource for people who want to know what works to make power and what does not. Jeff is one of the few people on any Honda board that I have seen that goes to such lengths to share the info he has learned. He's the only person doing this amount of testing and baselining of the H22a right now, and I for one appreciate it.

Ditto, too amny cynics and not enough helpers, if u don't like it don't buy it....

keep up the good work adn thanx for sharing Jeff

 

Amen Brutha.........I may be out of the loop but what the hell is IB?

 

Sure... if you think so. So what have we learned from this post of his? That you made 13hp and 2tq from what? stage 3 hondata? cold air intake? Import builder modified dc headers? Import builder special exhaust maybe? or could it be the carsound cat? The data would have been really valuable if it was dynoed back to back with just one mod at a time. If you add up the cost, say 150 for CAI, 250 for headers, 200 for exhaust, 150 for cat, 425 for hondata, 200 for obd1 conversion cable, 250 for p72 ecu. That will be like 1625 before tuning. So am I impressed with it? No, not to mention that this is NOT an information sharing post, but rather, a "Import Builder Level 1 package" business advertisment.

And I agree with Dirtylude: Why the hell would you choose a hondata stage 3 as a level 1 package? CAI, exhaust, and maybe a vtec controller, but a hondata stage 3?

 

pretty agressive huh.

I listed every mod it has....no secret...you listed it too...

And Hondata Stage 3 is the best choice.

Launch control and full throttle shifting...

it enhances the enjoyment of the car even more.

And its not just 2 lbs of torque, its 9 lbs of torque before VTEC and more than 9 after VTEC.

I did dyno everything, back to back to back...

the intake made like 2 HP, header made like 8 HP and the hondata did the rest.

its using the STOCK muffler...

Jeff

 

Technicaly I'm not certain how this is possible. I get less hp and tq in 4th than 3rd and there are well documented reasons for this. Drivetrain losses add as you raise gears. I have no idea why you're getting the opposite, but then again I've seen as much as 5hp gain/loss on back to back dyno pulls in the same gear.
http://www.pumaracing.co.uk/coastdwn.htm

I'm on the dyno this weekend, I should try it again since my car is NA right now, but I can't actually floor it since the engine is just breaking in.

 

What kind of gains (if any) did you see from the Carsound cat?

To clarify, are you saying that this car has custom cat-back piping and the stock Prelude muffler?

Was the Carsound fabricated to be a stock cat replacement? Or does it only fit with your custom cat-back piping?

Andrew

 

Whatever ...u had the head milled and some mild port work, and your intake mani was ported, and Cam Gears!

vnt

 

Basic Tunning then different now

 

yeah right!

vnt

 

hey!!!!!

just respect JEFF...that's it ! ok..

i don't see a lot of other places that takes time to put dynos on the web of teir clients and explain the differences..

 

hey.

i respect the dyno., i'm talking about dspecs !

vnt

 

Dspec has a Type S lude?