200 hp Axles

[srad2drag]

Whats up people? After not having very much time to race I finally has some spare time to got to the dragstrip.This time I was going to better my previous best of 9.70 in the 1/8 mile.I knew I was going to go quicker because I put on some 205-50 bf goodrich drag radials. Having cut a 2.19 best 60 footer before ........I knew I should be some where in the 2.00 60 foot range with these tires and hopefully run some 9.50's........Well any way I pull through the water box and proceed to do a lite burn out.......All is well.........I pre stage bring the revs up and stage the car when the lights come down I release the clutch and............Pop......I'm like WTF.The car did not move...the track officials had to help me push the car down tear drop lane and get it off the track.Turns out that I shelled off the left axle at the cv joint. Fast forward 2 weeks I order some 200 hp axles from ZX tuner.When I received them they were nice and beefy.That worried me alittle to because I hated to add weight to the drive train of the car but any way I installed them and proceeded to make a dyno appointment to verify any gains or losses.


Fast forward 1 week.......I get to the dyno and we made our first pull....The car was down 20 hp.............I'm like WTF.We analyze the dyno sheet and the car pinged the whole run plus it was pig rich and top of that the temp inside of the shop was 103. Definitely not a good day to dyno..So we pressed on backing down the fuel pressure and timing.......... hp came up considerably.After all the tuning we got our best numbers which was 6 hp and 5 ftlbs of tq less than my previous best......These are the numbers......139.7 hp and 120.1 tq.

My suspicions were confirmed the heavier axles,The wider tires and the heat took some of my precious hp I have worked so hard to gain.
While at the dyno I was once again plagued with those damn lifters tapping loud as hell and with the hood up its amplified thats so embarrasing, damn I hate that but any way..

Dissapointed with the dyno numbers I quickly go and order a nitrous kit. Determined to break the 200 hp barrier with my escort.........Then I thought about it.I think I'm retiring the escort to daily driver and not beat on it too much.The reason I'm doing this is because........................ I went out and bought a 2005 Neon SRT4.This car will be my next project for awhile. Its got great potential and its already a lethal weapon stock.......I will check the forum out regularly to stay updated with other projects some members have got going on now.........

I still got a crap load of parts to get rid of cheap.......2 sets of cams ,cam sprockets,extra head and intake.I will be posting in the FS forum..............


Peace

[mikeflys1]

This has absolutely nothing to do with your post but.....What are you using to tune the cobra maf with a stock computer? safc?

[ROB-80E]

Odd, I've got the turbo engine with 220hp at the wheels and 1040lbs (dyno tractive) torque and I've never had problems with CV's. I'm just using standard N/A DOHC ones.

Admittedly, I wouldn't do the amount of racing that you do, so that's where the wear difference is I'd say.

Still impressive figures mate, out of the N/A. Well done. Just curious, what times do you do over the 1/4 mile? Also, how do you like the BF goodrich's?? I'm thinking of getting some drag radials for my 15x6.5" racing rims.

[srad2drag]

Odd, I've got the turbo engine with 220hp at the wheels and 1040lbs (dyno tractive) torque and I've never had problems with CV's. I'm just using standard N/A DOHC ones.

Admittedly, I wouldn't do the amount of racing that you do, so that's where the wear difference is I'd say.

Still impressive figures mate, out of the N/A. Well done. Just curious, what times do you do over the 1/4 mile? Also, how do you like the BF goodrich's?? I'm thinking of getting some drag radials for my 15x6.5" racing rims.

I have not had the chance to run the 1/4 mile yet.......My g-tech (for what its worth ) displayed a 15.2 1/4 time at 92 mph......As for the tires they are good.I like them alot.Not to good in the rain though

[srad2drag]

This has absolutely nothing to do with your post but.....What are you using to tune the cobra maf with a stock computer? safc?

I got a adjustable fuel pressure regulator.It works pretty good I might add.I ordered the MAF from pro flow....They had it calibrated for my specific application ie: injectors and flow potential of the whole intake system. When I installed it I picked up 3 hp over my stock meter and I did not have ant CEL's with that pesky OBDII system.

[D323]

sad to see you go. Enjoy the Neon.

[FE3-323]

an odd question.... but did you ever modify the intake manifold Srad2Drag?

[srad2drag]

an odd question.... but did you ever modify the intake manifold Srad2Drag?

Gude ported the factroy intake manifold.........Proflow measures the intake from the air box all the way to the throttle body.They calculate the flow potential of the intake tract and calibrate the meter based on the data they gain from that information.........I had to send in my stock meter and airbox and intake plumbing to get the right calibration.

[srad2drag]

if you were using cheap ass reman axles, then obviously the **** broke

BUT WAIT, you pinged AND the car ran pig rich?

Listen here dude.....With the money I got tied up in my car why in the hell would I have reman.axles in it?.....C'mon dont be a jack ass.........As for your other comment....

I dont know what type of response you are trying to solicit.....but clarify and I will glady reply.

[Tazman2]

Listen here dude.....With the money I got tied up in my car why in the hell would I have reman.axles in it?.....C'mon dont be a jack ass.........As for your other comment....

I dont know what type of response you are trying to solicit.....but clarify and I will glady reply.

He was wondering how your running pig rich yet pinged. Which obviously it wasn't a lean issue but probably a timing issue?!

[srad2drag]

He was wondering how your running pig rich yet pinged. Which obviously it wasn't a lean issue but probably a timing issue?!

You see here is the deal.When I tuned my car on the dyno about 2 months ago I optimized timing and fuel pressure.........This time around I only changed the axles and the tires...ofcourse the weather changed but I have no control over that.
The very first pull on the dyno the car was down 20 hp,which is a significant drop in regards to the changes I made.
We laid the previous best dyno graph over the current dyno graph and analyzed the information..........The arifuel ratio was indeed richer and you could hear the car ping while making the dyno pass..........I backed off the fuel pressure a couple of pounds and the car picked up a few hp.After we got the target air fuel ratio we started backing off the ignition timing and each time I reduced timing the car gained hp.When the car stopped making hp we went back to the previous best setting....I hope this cleared any confusion from my first post.

[FE3-323]

by modifying the intake manifold i was primarily meaning cutting it, as my dyno results showed gains.

[srad2drag]

My intake manifold has not been cut.Its only been polished and gasket matched.Never did do any experimenting on runner length by cutting the intake.

[weelyweels]

could i get you to clerify "cutting" the intake manifold....cutting=porting or cutting=removing vics? or am i way off??

[FE3-323]

oh man not this again.... do a search on "bpt323's cut intake manifold" or anything along the lines of that.
Cutting as in altering and improving flow to the VICS.