X-Charger Dynos

[Maverickaf17]

My X-Charger dyno'd at 267 rwhp/269 rwtq. I thought it was pretty weak. I have the HO-PO Kit with 2.8" pulley. Does this sound normal to you guys? What are the other X's getting? Note: My Mods are in my sig. I'm hoping with 3.73 gears and my Spydershaft one-piece, I'll hopefully be kicking near 300 rwhp/300 rwtq.

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[beaustang]

In your other post didn't you say you have a custom dyno tune? If so that is low; if that's the tune that came with it that's about right, Doug's mailorder tunes are pretty conservative (very safe) What was your afr? Probably pretty rich. Mine is a manual and with a custom tune got 287hp and 301 torque.

[GrayPony]

Your not going to get 300 by installing a gears and a driveshaft. Just curious, are you running and X or H pipe?
Can you post your dyno sheet?

[pat6674u]

For the Bama tune that is pretty much right. Before my custom tune mine dynoed at 26ish and now it is at 271. Don't read too much into dyno #'s, as nearly every dyno is calibrated just a little different. Was it a Mustang dyno, because if so those always calculate a lower number than a dynojet. Need more info man.

[Maverickaf17]

In the other post, I was running it on Doug's tune.

I use true dual H-pipe with a pair of older flowmasters. Don't have a dynosheet.

It was a mustang dyno.

Maybe I should get it dyno'd at Steeda instead of BBR. Since they have more experience with the X-Charger? Or should it not matter?

[07lane40]

the mustang dyno will make a difference. supposedly it shows numbers thatare double digits less than a dynojet dyno.

[pat6674u]

I think the Mustang dyno reads significantly lower. I would bet your dynojet numbers are closer to 300 rwhp.