Hey man do my numbers seem bad for LT and Y-pipe 97 Z28?

 

Your numbers seem about right, but it looks like you don't have a converter. I use the Yank SS 3600. The converter alone knocked 5 tenths off my time, by far my best mod. Use a trans cooler. With the mods in my sig I was at 299/330 with 1.6's, adding the 1.7's put me 309/336.

 

No, no one has dyno numbers for that, or pacesetters compared to the most expensive LT's. But they'll all talk out of there *** and tell you you'll make a lot more power by spending more.

To the OP I wouldn't spend the money on switching to LT's or an EWP. Save for a cam and be happy.

 

I made 276 rwhp and 317 rwtq with CAI only and other mods tha don't affect HP but that was with a M6 so I say your pretty good with those #'s being that you have an A4.

 

You have some good numbers. Would have recommended LT's the first time around but do those other upgrades the other guys said.

I would recommend a Yank SS 3200 or Yank SS 3600 stall. If you don't care about gas mileage they really WAKE UP the performance of your car

 

Get yourself some
Lt headers
1.6rr's
Cold air intake
maybe a ewp and a tune then u should be close. But I think you already have a good group of parts and for the price of some longtubes and ewp you could buy a cam and easily hit 300hp

 

I have to say, that through an A4, those are very good numbers (even yours blk97z28).

 

I am pretty happy cause I have NO CAI or full exhaust which would increase torque.

 

Would it be a good idea if i bought a cam and had my heads rebuilt and slapped it in my motor with 130k on the clock?

the motor doesnt leak any oil nor does it burn any oil.

 

A CAI will help a lot.
There is nothing to be gained by adding anything after the y-pipe.

 

It's your choice. 50% of the people will say rebuild it first, the other 50% will say go for it. My original motor kicked the bucket at 153k miles, but it had a shitload of leaks.

 

Thank you tons man for some reason I was under the thinking that the less backpressure you have the torque. Something along the lines of cutout open equals my top end cut out closed less top end.

 

do every cheap mod you can to add a few hp. an airfoil and coolant bypass will net you between 10-20 hp. clean out your engine and intake system as well. seafoam your whole engine and clean your maf sensor. it made a huge difference for me.

 

If that is true, then why did I gain 5 rwhp by installing a 2.5" cutout on my bolt-on 1993 Ta, and 13 rwhp in the same car when it was cammed? Also, my 1994 TA picked up a consistent 1 tenth and 1 mph in the 1/4 with the same 2.5" cutout. In both cases the cutout was back in the I-pipe, well after the Y-pipe.

 

No it won't.

LOL, I meant adding any more exhaust, aka restrictions, not a cutout. He has an open Y and was under the impression that he would gain power by going to full exhaust, what you are talking about is going in the other direction, of course you gained power.

 

^I thought you were referring to installing an aftermarket catback verses the stock one. My bad on that

 

With that high of mileage, I personally would invest in my transmission, heads, and block first... I have 100k and am afraid to do a cam-only setup due to the fear of my tranny going down with my 3.73's and 3600 stall... (I also JUST fixed my rear-main seal leak )

Its up to you man, I could just be way too overprotective of my baby

 

^I'd probably look into getting your trans rebuilt before installing the stall converter. If the trans goes bad then you'd probably have to replace or rebuild the converter, so with 100K...

 

here is the Mods i have

Mid Length Pacesetters
Aftermarket Y-Pipe
High Flow Cat
Straight Pipe Cat Back
10.2 MM Plug Wires
NGK TR 55's plugs
New OPTI
Rebuilt 4l60E with Transgo Shift Kit
Aluminum Driveshaft
3.73 gears
drilled/slotted rotors
Moroso CAI
Aftermarket Aluminum intake elbow
Air Foil
Throttle Body Coolant Bypass
MSD coil
UMI Lower Control arms
UMI Panhard Bar
UMI Strut Tower Brace
Lowered 1.8" front/rear
new shocks and struts
LT4 knock module
Mad Z tune!

I think thats all????

 

Yea that's quite far fetched. You're sounding like a K&N commercial lol You're more likely to get about 7rwhp with both.