Speed Density Combos

PistolGripSLR · May 24, 2022

I was just given some “Brodix BP ST 5.0 R Series Cylinder Heads CNC Ported” by a friend and was wondering how these would fare on a SD car? So far my 87 Notch has a 306 with mods that include Intake, BBK 70mm Spacer and TB,BBK long tubes,BBK Off Road Cats with X pipe to stainless piping with Borla XR-1’s. Currently running some crap E7 heads that don’t breath for anything and the car still did 251hp and 300+tq at Izzy Performance Dyno in Compton Ca. Now what I wanna know is how some of you SD guys feel this car would do with a Crower 15511 or a Steeda #19 cam and those new heads added?

General karthief · May 24, 2022

Sounds like you should buy stock in a tire company after that.

Noobz347 · May 24, 2022

The stock SD system isn't going to work well with all of that.

PistolGripSLR · May 24, 2022

General karthief said:
Sounds like you should buy stock in a tire company after that.

I wasn’t sure it would shred being some guys are so negative about SD lol Plan is to go MSPNP stand-alone ecu later down the line so we’ll see

Noobz347 · May 24, 2022

It's not SD that is difficult to deal with, it's the OEM SD EEC. It's not going to like your displacement variables much.

I think an aftermarket SD would be nice We have some folks around here that have tried a number of them. I couldn't tell ya which one I thought was best. I went TwEECer R/T back in the day and it was a bit of a pain.

I eventually just converted to MAF but there's def better stuff now than there was then.

PistolGripSLR · May 24, 2022

Noobz347 said:
It's not SD that is difficult to deal with, it's the OEM SD EEC. It's not going to like your displacement variables much.

I think an aftermarket SD would be nice We have some folks around here that have tried a number of them. I couldn't tell ya which one I thought was best. I went TwEECer R/T back in the day and it was a bit of a pain.

I eventually just converted to MAF but there's def better stuff now than there was then.

Yeah my plan is to run SD with MegaSquirtPNP stand-alone system later down the line when cash frees up. A lot of tuners around the SoCal area run MSPNP with SD pushing ridiculous numbers for Drag, Autocross and Drifting. So for the moment I was gonna run a SD friendly cam to keep the vacuum and idle happy till then.

tmoss · May 28, 2022

When a dog bone slipped out and my SD cam got eaten up, I went to that 15511 cam. It ran fine but at idle it would run rich. Never could get it too not idle rich, so I converted to MAF with a 70mm SN MAF unit.

PistolGripSLR · Feb 4, 2023

tmoss said:
When a dog bone slipped out and my SD cam got eaten up, I went to that 15511 cam. It ran fine but at idle it would run rich. Never could get it to not idle rich, so I converted to MAF with a 70mm SN MAF unit.

Yeah I’m having that trouble of running rich at idle now. I think it’s the current mods and the speed density acting up. I guess if running that Crower I’d have the same mild richness? At this point I believe I’m buying with a MegaSquirt computer then cam it. Building a fresh 331 so we’ll see how it goes.

Monkeybutt2000 · Feb 4, 2023

I ran GT40 irons with a Cobra intake,65mm TB etc with a stcok cam,car ran 12.80s@105mph. Played with the idle and fuel pressure and car ran and idled like a stocker. This was over 20yrs ago.

Speed Density Combos

PistolGripSLR

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General karthief

wonder how much it would cost to ship you a pair

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

PistolGripSLR

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Noobz347

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PistolGripSLR

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tmoss

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PistolGripSLR

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Monkeybutt2000

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Speed Density Combos

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wonder how much it would cost to ship you a pair

Stangnet Facilities Maint Tech... Er... Janitor

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Stangnet Facilities Maint Tech... Er... Janitor

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Gettin Wired

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