First, a shout out to Modular Depot / Apten Motorsports Even though i'm sure most if not all of this has been posted, i like to be pretty detailed when i do my mods, Just thought i'd update everyone on all my results as far My car on the dyno at 800 miles (still tight) stock, except for the k&n fipk put down 363.9 rwhp & 356.5 ft/lbs The UPR x pipe netted me about 13 rwhp & 11 ft/lbs. Today, we put on the magnaflow catback, the catback netted me 17 rwhp and i think it was 13 ft/lbs, (this was on a back to back pull, i think it would have picked up 20 to 21, but they let off on the dyno cuz they thought it was lean, but it was not. the back to back pull still netted 17 rwhp, the let off dyno was running about 4 rwhp above that until the let off point. after that we strapped on the 2.80 pulley along with the metco-inc idler pulley. there is a bit of belt slippage still around 6300 rpms. right now the car is seeing a maximum of 21.5 degrees of timing, and the a/f is at the 12.0 to 12.1 range with that the car put down 433 rwhp and 477 ft/lbs of torque. (this is 70 / 121 over stock ) i also have a program with an 11.7 to 11.9 a/f and that put down 426 rwhp and 467 rwtq (this is 63 and 111 over stock) i still think the motor is pretty tight and will definately make more power as it loosens up, today, the car had right at the 1100 mile mark on it. for info purposes, the #'s i am posting are all peak #'s, throughout the power band, the car picked up higher #'s above peak on everything from the x pipe, catback, and pulley change. i've included some pics, vids, and graphs for you all. First is a video of the dyno which will allow you to hear the magnaflow, upr x combo. i think it sounds great, i had to do a 2nd video because the first one i had to drop the camera and hold my ears, lol, it was so loud. PLEASE RIGHT CLICK AND SAVE TO PRESERVE BANDWITH http://home.fuse.net/beefcake/04dyno1.mpg if i run out of space on this server for the video, i will move it to another, someone email me at beefcake@beef-cake.net if that happens DYNO GRAPH ENGING BAY CUSTOM SUBFRAMES Here are some pictures of the exhaust, you can see with the exhaust side by side the bend restrictions that are holding the power down on the cars again, i cannot thank Modular Depot / Apten Motorsports enough for all of their help with putting this together so fast, only owned the car 3 weeks. they are the utmost professionals and take their time and make sure the job is done right, if you ever in the cincinnati area, i really suggest looking them up for a tune[/b]
Thanks for the detailed report on the mods. They (MAGNAFLOWs) look good new. These cars respond so well to mods. Plans on swapping out the rear for a solid and Auto transmission too?
Horsepower seems kind of low for your mods and a 2.8. Torque is where it should be though. Even if the car only has 1200 miles on it I would expect your HP to be closer to 450 or so. I mean damn... I've got basically the same mods as you (I have shortys) yet I'm running the stock pulley and putting down almost the same RWHP??? You are even running a little on the lean side which should give you a couple extra ponies... I'm wondering if there's more to be had in the tune that your tuner possibly missed?? U.M.
they know what they are doing when it comes to tune, i'm going to put her back on around the 3k mark and see what she does, keep in mind these are all back to back passes, we never did a serious cool down for a "dyno" number, i am more worried about the cars condition in normal everyday situations
