General Supercharger Thread

77.5

I reckon with my low RPM livin', a 77.5 would be just fine.

the SG3 would holler at me if I got past 5volts.

 

Can someone send/post photos of a Harrop pulley? Front and back and side profile, preferably with a tape measure or something for me to reference. I should be able to get a quote based on that and then see if you guys want to get some, and if yes then I'll need someone to send me a Harrop pulley (any size, so if someone has a stock one laying around that's fine) for me to measure.

 

I would if I were home today, but I could do that at some point this weekend.

 

I'd be down for a 77.7mm pulley.

 

You can have my 85mm.

 

Slow down there buddy you have to get the blower installed first.

Though I would love to brag and say "I have over 3" under the hood."

 

Oooo, let us know if you're able to find one. I have the part number for it, it's posted somewhere on this site, but I couldn't find any in stock. Maybe @snivilous could fab one?

Err sorry I was thinking the intercooler res bracket

 

Not too worried, I know Harrop will make it right next week. Or I'll just build one. Prospeed already posted on FB with their cooler relocation bracket.

 

If it's bent sheet metal I can cut it on the plasma table as a flat pattern and just throw it in an envelope

 

Nice little blower whine at idle now

 

Oh I was thinking of adding some vent holes to the skid plate.

 

Are you going to have him fab you up some holes?

 

No kink shaming here.

 

Something along this. I’m sure I could freehand it but won’t be as clean lol but may look odd on my skid who knows

 

Interesting findings this morning. New pulley and belt didn’t gain as much psi as I would’ve thought but the boost ramps in much sooner.
I predict this due to the larger intake and free flowing exhaust being efficient. AFRs still on the money. now holding 8.5lbs. IATs this morning in the single digits which is nice to see with the prospeed heat box. Time for another pulley ha

 

I predict the incremental pulley size is also a factor. So ordering another one now lol

 

Are you still using the tune from the Maggie blower?

 

speaking of smaller pulleys....

once I get @snivilous new 77.5 and I properly affix all the stickers he is going to send me....

will my present tune be ok?

 

Yep which I’m sure is a factor.

 

You’ll want a retune

 

It probably all just depends on what DA you have locally today. Some days I’ll see 7psi, others I’ll see 10.

 

I’m sure this also.

 

I’m thinking if I do bump the boost if this pans out with the smaller pulley, maybe I would swap to an OEM FFV regulator to get 60psi at the rail instead of messing with an aftermarket FPR.

 

Just watched my video I took. Saw 9.2 in the upper rpm range. Probably more there than I saw at this speed and gear.

 

Thought I'd post up boost numbers. Was in the 9's over summer. With cooler weather, 63 hit 10.1.

Nice TRD whine...
https://vimeo.com/861552950

 

Ha! Low flying aircraft!!!
Do like that whine!

 

sounds beautiful! what intake setup are you running?

 

Just the TRD SC intake with SABM and AFE filter.

 

Tune update.. Apparently OTT doesn't want to do custom tunes anymore. More or less the argument I just had with them. So @snivilous will be doing the rig when we have some time. New smaller pulley will be here tomorrow (3.25)

 

EPA coming after folks pretty hard with big fines. YT is full of videos about the issue these tuners are facing.