Is 19 (2.76 upper, 4# lower) psi too much?
Steggy 5 boost.
- Thread starter NVRL8TE
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nah, getting close though. I'd snag some long tubes to drop boost a bit
I have kooks 1 7/8 - 3, and 3" all the way out.
I'm want to do a 100 shot on top.
I've told ya the answer to all of this, lol .... And, it's not how much boost you make necessarily..... It's how efficient it does it. I'm @ 14-14.5psi @ 515/510. Impressive when technically there's less surface area in a ported blower, speaks volumes. More HP you can make on the least amount of boost is ideal. Efficiency.
^ This
The 2.76/4lb combo is close to the exact same as the tested 2.9/6lb combo. If it shows that high of boost on a chart somewhere you won't make it. I never made over 17 with my 2.9/6lb combo in any weather with headers and my o/r exhaust. Usually made a hair over 16. I only have 1 5/8th's headers too.
We've proven boost doesn't matter with the Eaton we basically know this.
The most you can pulley it in any conditions and it actually pay off with a few extra hp or a little torque is the 2.9/6lb combo or any other combo that's close to that no matter how you pulley it with what size.
After my built motor went in we tried more boost for it and it did nothing.
The most you can pulley it in any conditions and it actually pay off with a few extra hp or a little torque is the 2.9/6lb combo or any other combo that's close to that no matter how you pulley it with what size.
After my built motor went in we tried more boost for it and it did nothing.
Trying to keep my IAT's down in every way, is my goal, and kinda what I'm after, here.
My stage 5, 2.76/2lb combo only make 13 psi and only 450/450 at the wheels
I'd be pissed.
My unported 2.76 upper only shows 13psi and 450rwhp... You may have something wrong.
Yah, I made 450/450 with a 2.80" on my non ported blower... Was a super fat, no timing tune too. Something's certainly not right ^^^
it was a hot day but yeah. I've got a TVS coming anyway, I'm done messing around with this blower
How low was your timing? And at what octane?
But didn't you or someone else show that (with your port) using a 6lb lower with a 2.9 vs. a 4lb lower basically did nothing but make your IAT2's go up? It made something like 5wtq if that.
You got a few hp and some torque over the 2.9/6lb combo and the 2.9/4lb combo. So if you want to run max hp/tq the 2.9/6lb combo is as far as you want to pulley it. Jake stayed with the 2.9/6lb combo over his old 2.9/4lb combo when he switched to it and he wouldn't have stayed if the car didn't go faster or show gains at the track.
91 octane and conservative on the timing but I don't recall how much he had in it. IAT2 were in the 150's
Had the Steggy stg 3/2.76/4#/N2O combo for a long time. 18-19# was what I saw. Belt slip was an issue every now and then. Tons of fun when I was using my Cobra as my DD. Would do it again but do the 2.93/6# pulley setup instead.
Belt slip or something else going wrong there. My ported blower with 2.76 with stock lower made 13 PSI and closer to 500/500.
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