Drift-Office : Jackson Racing Supercharger Installed! (Tune Tommorow!)

[CSG Mike]

Originally Posted by sw20kosh

Are you asking me a question or stating that as an observation? The curves look exactly the same for all intents and purposes until you get to the top end where the stock header limits it.

What is your theory on why that little hiccup is there?

I'd speculate a resonance with the cat maybe. The Jackson kit has a smoother band from that point up to around 5.6k, where both kits have a slight dip.

[Calum]

Originally Posted by CSG Mike

I'd speculate a resonance with the cat maybe. The car with the Jackson kit and the HKS header has a smoother band from that point up to around 5.6k, where both kits have a slight dip.

The header and different cars add too many variables to accurately split these hairs. Those runs are an awesome comparison but we need to be reasonable about how closely we look into them. (Thanks for overlaying them and thank you, Bob, for posting them)

I highly doubt that either of those dips could be felt by even the most accurately calibrated butt dyno. I do suspect the overall smoothness could be noticeable though. I just don't think it's fair to attribute the smoothness to the kit itself, at this point.

[gmsii]

Originally Posted by utekineir

i'm more impressed with how little having no cats and stock header affects results than anything.

cats and stock header actually do have a big impact...i our testing with the supercharger kit (running 91 octane) with performance header and no cats we picked up additional hp starting from 4000rpm with a linear gain of about 20hp peak at 7000 rpm.

[boredom.is.me]

Originally Posted by gmsii

cats and stock header actually do have a big impact...i our testing with the supercharger kit (running 91 octane) with performance header and no cats we picked up additional hp starting from 4000rpm with a linear gain of about 20hp peak at 7000 rpm.

That's not what he was saying. He was saying that the stock header does not gain any performance with the cat removed. Meaning that the stock ehader is just a poor design.

[utekineir]

What I meant was is it worth the extra 1k+ (difference between cost of mods) and stink of the cat less for the small difference seen in the graphs?

[ramiram1984]

Originally Posted by utekineir

What I meant was is it worth the extra 1k+ (difference between cost of mods) and stink of the cat less for the small difference seen in the graphs?

I purchased the hks header back in June with the intention of going SC by end of the year. NA, this header proved well, and it didn't hurt with my SC set up. (As you can see by dyno).

[Drift-Office]

Originally Posted by utekineir

What I meant was is it worth the extra 1k+ (difference between cost of mods) and stink of the cat less for the small difference seen in the graphs?

It really depends on your $$$ and disposition, and if you're into squeezing blood out of a rock.

In a NA setup, it's worth every penny (ELs that is) and if you plan on staying NA for awhile, that extra bump will be worth it. If you purchase a header now thinking it would be beneficial to you when you slap on a SC, then that's a whole 'nuther story...

Cheers!


Bob @ Drift-Office, LLC

[gmsii]

Originally Posted by utekineir

What I meant was is it worth the extra 1k+ (difference between cost of mods) and stink of the cat less for the small difference seen in the graphs?

is it possible that the similarities observed between the two graphs are a result of the differences in the sc kits rather the perceived similarities of how the headers are performing with a without cats?...in other words, consider how different digital assassins dyno graph would be if didn't have cats and had a header.

[utekineir]

Originally Posted by gmsii

is it possible that the similarities observed between the two graphs are a result of the differences in the sc kits rather the perceived similarities of how the headers are performing with a without cats?...in other words, consider how different digital assassins dyno graph would be if didn't have cats and had a header.

Doubtful considering the demonstrated past results of sc on non e85 cars with headers.


But good try salesman

[gmsii]

Originally Posted by utekineir

Doubtful considering the demonstrated past results of sc on non e85 cars with headers.
But good try salesman

we'll be finishing some tests on sc setup with and without cats as well as with a C38 charger....so be on look out.

[shaunsweeney]

Honestly the only power mod I was planning on was the FT86 SpeedFactory catted UEL. The goal was to remove the torque dip. I don't want an obnoxious car. Been there and done that.

However, I am really digging this kit. I wasn't really interested in the current FI options before seeing this. I love the idea of bolting it on to a stock car and being good to go.

This makes me rethink the decision of getting the catted UEL at all. I don't have the desire to tune a FI car again. Once again, been there and done that. So the question is, do I go FI and leave everything else stock?

[CSG Mike]

Originally Posted by shaunsweeney

Honestly the only power mod I was planning on was the FT86 SpeedFactory catted UEL. The goal was to remove the torque dip. I don't want an obnoxious car. Been there and done that.

However, I am really digging this kit. I wasn't really interested in the current FI options before seeing this. I love the idea of bolting it on to a stock car and being good to go.

This makes me rethink the decision of getting the catted UEL at all. I don't have the desire to tune a FI car again. Once again, been there and done that. So the question is, do I go FI and leave everything else stock?

That's what the "factory tuned" version of the Jackson Racing kit is designed for, and that's exactly how we're testing our kit up front.

[sw20kosh]

Originally Posted by Drift-Office

In a NA setup, it's worth every penny (ELs that is)




Bob @ Drift-Office, LLC

Whats this I don't even...

I thought your best NA numbers came out the rear of a JDL UEL? =P

[shaunsweeney]

I guess the question is would it be worth changing the header, it is obviously a terrible design, and replace with the catted UEL and get a tune.

I don't want a torque dip at all and I still see a slight one with this kit. Then again, I don't want to spend this much money and have another $500+ in tunes to take care of on top of it.

I guess the real question is how much the FT86 SpeedFactory catted UEL changes the VE of this engine.