allmotor_2000

Las Vegas this weekend and Phoenix on Thursday... my usual trips are to Asia - let me see how I can work Atlanta into the picture!!

Chemmech

Wow, I thought this dyno was with the 8 psi pulley and the timing retarded 1 degree/psi.
Are you gonna dyno with this setup also? ( the setup I ordered )

fastvtecCL

hey steve did you check out my new avatar??

darrinb

i'm guessing that the time in fastvteccl's avator is scalberts time on a blown launch..maybe...


nice work steve, start workin on the internals and get some traction, u def got the power for low 12's

scalbert

Yes and no. It was with the 8 PSI pulley. the boost dropped when the exhaust cut-out was opened. I'm considering changes or may just leave it alone. If I do want to try and run more boost with a freer flowing exhaust it will require more changes than just a pulley.

As for timing, no retard was needed. We'll have to see how the CA 91 octane issue works out before making a final decision. I would start with 1 degree per 2 PSI though.

scalbert

That would be cool and there are some electronics manufacturers here (albeit, not many), I guess I need to get the torque arms done.

scalbert

Yea, that is great.

When was that taken??

types1967

im happy for ya steve

scalbert

I thought about this a bit more, had I been able to keep the same boost levels with the cut-out open I would have seen greater power increases that what was realized. On the turbo the system will try and maintain the desired boost even with the exhaust open (sometimes a bit higher or at least on spikes). The blower is fixed and cannot compensate without a pulley change.

That said, 25 - 30 WHP would probably be seen if the cut-out were open and 8 PSI boost was run. Unfortunately, this is not an entirely as simple thing to get more boost as it is to flip a switch and open the cut-out.

More research will need to be done.

scalbert

BTW, what exhaust do you have??

Chemmech

Scalbert, I have comptech headers and the rest is stock , haven't been able to justify putting down $1k for the b-pipe and axlebacks yet. If there is no detnation no timing changes are needed? Just trying to understand everything. Your right though all we can get at the pumps here in California is 91 octane, kinda strange since there are more than half a dozen refineries in the Los Angeles area.

Just curious Steve, would an intercooler be able to pull double duty for a super charger and turbo charger?

scalbert

Correct, if there is no knock then the retard could be removed. But we'll have to play this delicately as I have no 91 octane to test with. Actually, I could mix 89 with 93 and see how it goes. I'll try this out soon and let you know.

I assume independantly and not concurrently (although that could be done). But yes, this same manifold/intercooler could be used on a turbo application.

scalbert

The more I think about it the more I am considering an exhuast and brining the boost back up. That 400 WHP goal is too close not to try.

How is the drone with the Comptech cat back system?? Or, does anyone know the pipe size on the GReddy cat back??

scalbert

One more thing, I think I am going to put a large reservior in the trunk, maybe a 5 gallon fuel cell, and see what the difference is. That should keep heat soak to a minimum and make it very easy to add ice.

mrsteve

iTrader: (1)

The droan is definitely noticable when you are on the highway Steve. It was a big difference from the stock exhaust. If you are in 4th, 5th, or 6th gear around 2k RPM you'll hear it for sure. I bought the quiet tips but haven't put them in yet, people I asked said it will make a difference, but I'd lose 2-3 whp. Not really worried about the power loss because I could take them off easily at the track.

Ask mattg about the GReddy system. He has had it for a while.

scalbert

Matt, where are you.

I need to know the pipe diameter as Greddy's site is not cooperating (ASP SQL Server errors). But from what I remember, they don't show details anyway.

scalbert

I am going to try another heat exchanger and cooling system just to test with. But we will need to discuss what you would like.

I have decided to run a larger, rear mounted reservoir (in the trunk) along with a custom radiator. This may not give power but should help to keep from losing it when how out. Plus, it will make it much easier to cool the system down if needed

mrsteve

iTrader: (1)

Steve, I remember seeing the measurements at 60-70mm. This works out to be around 2.4-2.8 inches. The tips are larger though.

scalbert

And I really thought I was done...

After talking with my father-in-law he made a statement that for me now to not get an exhaust is like prepping a car and not painting it. :o

So I will go ahead and get an exhaust system. I went out and looked at how the pulley system could be changed to run just a bit more boost, and I found a solution. So I should be able to get rid of some of the back pressure, and run a bit more boost. I want to shoot for about 8 - 9 PSI again with the exhaust with the mean closer to 8.5 PSI.

That, under the similar conditions, should neat me over 280 WHP. Cooler weather and a few electronic tricks may be able to net me 400+ WHP as that is a new goal. I know where I stand right now so that goal is within reach.

scalbert

65mm would be fine as that is just over 2.5 inches (2.56 actually). But I want to be sure this isn't just for show and sound. That it actually has performance benefits.

mrsteve

iTrader: (1)

Matt has had Comptech, HKS, and now the GReddy. He said the GReddy is by far the best in his opinion... although I don't think he had the CT with the B-pipe, just axle backs.

mattg

it's approx. 2-3/8" OD.


i've only had CT mufflers and now the EVO, mrsteve.

SCTL-SS

I have both the axle backs and B-pipe. IMO I believe the most benefit would come from the B-pipe(CT said that it would net the NA cars 2-3 HP while the SC cars at about 5-6) but in your case more boost less back pressure???? Then there is the issue with more noise as well. The axle backs, even though they give some gains, are mostly show.

Question Steve: If the j32 is putting out 445 HP are you losing 75-80 through the drive train and netting 369? I've only been figuring about 25 for the manuals and about 51 for the autos. Is this correct?

Never the less the 369 is awesome and very encouraging to see. With the same setup would you expect the 5AT to be in the 345 range?

This is excellent!!

scalbert

So, 60mm piping. That is still bigger than the A-Pipe though. Any drone from it??

scalbert

The manual loses about 17% whereas the 5AT loses about 23%. Using the same engine output numbers gives the 5AT about 342 WHP.

mattg

no drone steve. the exhaust is very subtle at highway speeds. it's only loud while the car is warming up and when you goose it at low rpm.

mrsteve

iTrader: (1)

Oh i thought I remembered seeing you say that when you got the EVOs put on that they were the best because you have had all three. Must have been someone else.

scalbert

Hrmm, very enticing. I wonder how well they flow versus, say the Comptech cat back system.

blader

I personally love the sound of my comptech mufflers .. they do drone on the highway a bit but I've used the quiet tips and it takes it back to the stock sound .. so you could always run them and then take them out on dyno or at the track .. plus I think the size and tip diameter and overall look of them are perfect on the CL

scalbert

I dunno, I'm now re-thinking this whole thing.

What I would love to do is find someone local, install the exhaust real quick and see what the boost does. If it drops some I know it is flowing better and I can see if the sound is acceptable. But then again, I may just leave it alone.

I can always get another pulley for track use, a 3.0SC and run race fuel, when the cut-out is opened. I just now need to figure out how to mount the pulley as I hit a mechanical limit.

scalbert

Oh also, what a difference a year makes. Below is my first dyno with the blower and is when I determined something was wrong. It turned out to being the FPR which was replaced under warranty by Comptech.

264WHP/239WTQ Pull

A far cry from now with 105 more WHP and 71 WTQ. Needless to say, you can really feel the difference.

sgmotoring

I couldn't find your tread about the plug and play harness. Do you have a program for timing retard under boost and support 310cc injectors? If so I am ready to buy emanage, plug and play harness, pulleys(alternator and supercharge) and etc from you. I decided to keep my CL-S. Thanks.

importtuner

Wow!!! Congrats; you are officially a M5 and Vette Killer!! Now lets get them E55's; damn thing's a beast!! Show the world what a Honda can do!!!!!
-Justin

scalbert

The injectors haven't been worked out yet. I am running the stock squirters, extedning the pulse width but with lower fuel pressure.

El Cid Acura

Hey Steve
Those numbers are impressive I was wondering if you could point me into the right direction on getting those types of numbers in a J32 A1 motor for my cl. I have been contemplating purchasing the comptech kit, but I would like to see more power in my motor. Your Dyno numbers were just too impressive to ignore. Please advise me on what I should do and where I can purchase these modifications from.
Very respectfully
Benjamin Kim

scalbert

Hello Benjamin,

I haven't really looked at the J32A1 engine and manifold to see what could be done. There are some inherent limitations in the amount of boost that would need to be run make that power on the 5AT. The blower really can't make that amount of boost without turning it too fast.

However, I could see potentially making in the 320 WHP range with the J32A1 with the blower.

But if 350+WHP is your goal I would look into making a custom turbo kit.

Chemmech

So how is the kit coming along ? Is this the first kit for an auto? (Can't wait !!!).

scalbert

It is coming along. The connectors should be here soon along with the core. After that it is just the fabrication. And yep, this is for a certain 5AT.

mrimage27

steve how much whp the HBP give with out the intercooler?

scalbert

Remember, I was not running just the HBP. I had a different SC pulley on as well.

But alone, the HBP is worth about 20 WHP.