What hp increase will I see if I add big injectors and a test pipe?

[chrissurfr]

I already have the apr stage 1 flash and magnaflow exhaust which was a nice rise in the pants over stock. How much more will I gain by adding tt225 injectors for the 1+ flash and a test pipe??
Thanks! I got the mod bug again haha

[redline_redline]

you will get around 235 at the crank supposedly although those numbers are much higher than what you really are putting down most likely. there are thousands of threads on stage 1+ please search and find more detailed answers then.

[chrissurfr]

I appreciate your link to the search function but there is a whole lot of garbage that shows up the results. I was looking for....

+XX hp and +YY torque

its not that hard to answer lol.....thanks guys!

[vinny.dtw]

www.goapr.com gives you a pretty good dyno sheet of what they claim with injectors. But not with test pipe. I honestly don't think a test pipe would give you marginal gains, but perhaps faster spool time.

[jessefrank]

Here's a before/after dyno on a '02 1.8t w/ REVO stage 1 vs stage 2 (it's not APR, but most of the software chips seem to be about the same). Also this isn't my car I came across it a ling time ago and kept it since my car is also a 02 1.8t 5 spd w/ REVO...so I have no idea on supporting mods.

http://www.audizine.com/gallery/show...82&ppuser=9614

As for the TP (I just did an ER TP like a month ago), like vinny.dtw said, the trubo will spool faster. I'm not sure if you'll see any peak hp/torque gains (as I have no dyno info) but the "under the curve" graph should show some gains (i.e. non peak #'s, but gains over stock at different rpms).

There is a thread out there where someone dyno'd a eurocode TP and showed no gains...acutally lost like .5 peak hp i believe. After putting my ER TP in I think it was worth it though. I like the faster spool time and the turbo seems to spike a little harder.

[clcsocal]

APR Stage 1 gives 209hp and 236tq on 91 octane. The injector file bumps it to 229hp and 271tq on the same octane. Most test pipe info lists increase between 10-12 hp. The test pipe was the best "seat of the pants" mod IMO. The injectors and 1+ file upgrade didn't gave the same thrill as the test pipe. The test pipe with your exhaust should be a real nice jump.