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go Dyno sheet, wondering how to improve next

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go Dyno sheet, wondering how to improve next

Postby sigmabob » Wed Mar 15, 2017 7:33 pm

I posted something similar in the showoff garage on my build page but I thought this would be a better place to get questions answered!
Image

So current setup:
b16a (first gen) with chrome chip OBD1 ecu, custom air intake (from throttle body out to K&N cone filter), and Skunk2 exhaust with high flow cat and megan racing flange welded onto the OEM exhaust manifold to allow the 2.5.

Now that I'm finally OBD1 I'm wanting to do more upgrades to try and get my goal hp of 200 at the wheels.
Thoughts? Budget is flexible but I don't want to turbo it.
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Re: go Dyno sheet, wondering how to improve next

Postby crocrx » Wed Mar 15, 2017 8:08 pm

High compression pistons, cam
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Re: go Dyno sheet, wondering how to improve next

Postby Myriad » Wed Mar 15, 2017 11:07 pm

crocrx wrote:High compression pistons, cam
x2
I got a new shell, just need to stop driving the DX so I can work on it.

I've got a filter for my mouth, it just isn't a good one.
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Re: go Dyno sheet, wondering how to improve next

Postby Gotin » Thu Mar 16, 2017 8:49 am

4-1 Header if you want your number at the top of that chart to be higher.
4-2-1 Header if your want there to be a gradual increase across the whole RPM ban.
This should show an improvement over a stock b16a header.
- B.J.F-
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Re: go Dyno sheet, wondering how to improve next

Postby sigmabob » Fri Mar 17, 2017 9:47 am

crocrx wrote:High compression pistons, cam


Would you recommend a bore and something a little bigger?

do you have a parts recommendation? It's hard to google because a lot of the answers online are from 5+ years ago, not sure if much has changed though.
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Re: go Dyno sheet, wondering how to improve next

Postby sigmabob » Fri Mar 17, 2017 9:48 am

Gotin wrote:4-1 Header if you want your number at the top of that chart to be higher.
4-2-1 Header if your want there to be a gradual increase across the whole RPM ban.
This should show an improvement over a stock b16a header.


b16a stock header is 4-2-1. would a mugen or skunk2 header really be better? looking at the geometry I don't see much difference. Definitely would look better my stock headers are ugly for sure.
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Re: go Dyno sheet, wondering how to improve next

Postby Myriad » Fri Mar 17, 2017 11:21 am

sigmabob wrote:
crocrx wrote:High compression pistons, cam


Would you recommend a bore and something a little bigger?

do you have a parts recommendation? It's hard to google because a lot of the answers online are from 5+ years ago, not sure if much has changed though.
If you're looking at changing the displacement, then it's faster/cheaper/easier to do B20/vtec.

The higher your compression, the more power you make. Pistons will change your Static compression, cams your dynamic compression. You'll want to shop for forged pistons rated for high-compression and NA cams that advertise aggressive timing.
I got a new shell, just need to stop driving the DX so I can work on it.

I've got a filter for my mouth, it just isn't a good one.
Myriad
 
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go Dyno sheet, wondering how to improve next

Postby Myriad » Fri Mar 17, 2017 11:30 am

sigmabob wrote:b16a stock header is 4-2-1. would a mugen or skunk2 header really be better? looking at the geometry I don't see much difference. Definitely would look better my stock headers are ugly for sure.
Look up "Exhaust Theory". The runner lengths and width from the cylinders to the first and second Y is important for freeing up engine power. The stock headers are not only a bad material for performance (almost always iron) but the lengths are too short for proper cylinder scavenging, even for just 180HP.
I got a new shell, just need to stop driving the DX so I can work on it.

I've got a filter for my mouth, it just isn't a good one.
Myriad
 
Posts: 335
Joined: Sat Oct 10, 2015 5:49 pm
Location: Ohio

Re: go Dyno sheet, wondering how to improve next

Postby j6z7 » Sun Mar 26, 2017 1:45 am

4-2-1 headers, Aftermarket cams, valvetrain mods, hondata s300 tune

Leave the bottom end for later
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