cobra232 said:detroit locker finally makes a LSD for the 7.5
here is a link to a thread i posted over at 3.8 mustang
http://www.3.8mustang.com/forum/showthread.php?t=130698
no 7.5 worries now
yes it is much stronger.Jimp said:So this is better than the Auburn LSD?
scrming said:Ok... I just re-read this entire thread... and a couple of questions came to mind...
1) At what point did powerhouse's Trac-Lock let loose? Was it with the 125HP shot? Also was running slicks... which was one of the things my "rear end guy" cautioned about.... So lets say you stick with the 75HP shot and regular old BFGoodrich Radial T/As... (265/60/16).... My thinking is the Trac-Lock should be ok... comments???? Or do I stick the Detroit Locker in now??? If I blow the spyder gears in the Trac-Lock what else does that break???
2) I understand the Zex has a TPS switch... but they don't talk anywhere about coming on only above 2500RPM... Also there tech line seem to think it was "On" based solely on TPS... soooo.... what about adding a window switch? Set it so you don't spray until say 3000RPM... I usually launch around 1800 RPM... so at 3000RPM I'm rolling (about 22 feet)... then the spray comes on automatically... I think this would be a heck of a lot less of a shock to the drivetrain... and the Trac-Lock....
Ok... comments????
Jimp said:Powerhouse didn't blow the diff until they went above a 125 shot. In fact, he made a few runs at a 150 shot. He used custom jets, never said exactly what, I'm guessing over 150, and that's when he broke the diff. So with street tires and a 75-125 shot, I'm thinking you'd be ok. The nitrous comes on at WOT so you could feather the throttle on the launch until you hook up and then nail it.
pwrhws said:It was at the 150hp level that the diff broke, that was with a set of M/T drag radials which are more aggressive than the BFG.
scrming said:Thanks for the info Mike!!! My stang is a DD... so I'll would just be going to the track occasionally.... with my BFG all season radials... LOL! I would probably just run the 75HP.... so I'm feeling pretty good about just leaving the Trac-Lock in... for now.. LOL!!
MSP said:LOL!! Good old Scrming! Looks like your on your way! LOL! You got me excited man! What would we do without guys like pwrhws on our team! LOL!
pwrhws
Any news on the turbo setup yet?
scrming said:What would I do without guys like pwrhws??? I wouldn't sleep nights! LOL!!!
I think a nice conservative setup would be 75HP shot with a window switch at 3000RPM..... so the car is already rolling some... then BANG! hehehhe...
I'm already pretty quick out off the line... my main concern is by the end of the 1/4 I'm running out of steam... good 1/4 time (14.922) but not so good on the MPH (90.5)...
scrming said:What would I do without guys like pwrhws??? I wouldn't sleep nights! LOL!!!
I think a nice conservative setup would be 75HP shot with a window switch at 3000RPM..... so the car is already rolling some... then BANG! hehehhe...
I'm already pretty quick out off the line... my main concern is by the end of the 1/4 I'm running out of steam... good 1/4 time (14.922) but not so good on the MPH (90.5)...
Jimp said:I think the nitrous will give you more power at the top end so you'll be ok. Powerhouse did say that the 3.73s might be better though.
scrming said:I have to agree on the 3.73... even though I'm running 4.10s... LOL!
I'm running a substantially taller tire in the back... it's 1.5 inches taller than the stock tire... which according to someone's calculation would be comparable to running like a 3.88 with the stock tires... So I can't even imagine what a 4.10 on stock size tires would be like! LOL!
So the Powerhouse and PHP cars were manuals???? Maybe I can be the first automatic to get in the 12's! LOL!!!
MSP said:Well, if you let Lidio drive it, and go ahead and shoot the 150 Shot into it, without hurting the spiders maybe.. Remember, Powerhouse broke the spiders on that run.. I wonder if he could have went slightly faster if the rear-end didnt give out?
Seriously, I say lets not get greedy.. Lets do it the right way.. Once the Detroit locker is out, or you get the Auburn with a girdle, you can try for 175 shot.. This should put you right at 11.8 or 9 ET.. LOL!! Just make sure the tow truck is at the end of the track, just in case you need a lift to the winners circle! LOL!!
scrming said:Well, Lidio is licensed for a 9 second car.... LOL!!!
But your're right... I WILL NOT GET GREEDY... I WILL NOT GET GREEDY... I WILL NOT GET GREEDY... LOL!!
I did look up the Detroit Locker... looks like it runs about $365... plus figure maybe $100 for the install... (remember I hardly know the right end of a screwdriver! LOL) So I think I'll start budgeting $500 for next spring/summer... LOL
actually with the above dyno reading 3.45's look like they will pull hard on top and the generous low end will be enough to limit wheel spin with 3.45's off the line with an 1800 -2400 rpm launch.MSP said:Yes.. I spoke with someone who owns a performance shop, and he told me to stay away from the 4.10's.. He also, said the 3.73's would be better overall.. He mentioned that the lower RPM torque with 3.73's would be able to overpower the same car with 4.10's, while still keeping the car decent for everyday use..
Basically, the 3.73's could yield a slightly faster trap speed, because of the amount of torque the engine is producing at the lower rpm band..
Does that sound about right?
Looking at Powerhouses readout, this places most of the power to the advantage of the 3.73's... Which means, towards the end of the race, the 3.73 car should catch up and beat the 4.10 car..
engine RPM, Total Power, Engine Torqe
RPM, HP, Ft-Lbs
Run #, 1, 1
2700, ,
2800, 241, 439
2900, 242, 436
3000, 247, 433
3100, 250, 425
3200, 255, 419
3300, 260, 415
3400, 265, 409
3500, 270, 405
3600, 275, 401
3700, 279, 396
3800, 283, 391
3900, 286, 385
4000, 289, 380
4100, 291, 374
4200, 294, 367
4300, 295, 361
4400, 297, 355
4500, 299, 349
4600, 300, 342
4700, 301, 336
4800, 301, 330
4900, 302, 323
5000, 302, 317
5100, 302, 311
5200, 301, 304
5300, 300, 297
5400, 299, 291
5500, ,
cobra232 said:actually with the above dyno reading 3.45's look like they will pull hard on top and the generous low end will be enough to limit wheel spin with 3.45's off the line with an 1800 -2400 rpm launch.
3.45 perfect 3.73's damn ner perfect
4.10's roast the hides off the line and drain the top end.
with super six ported 4.0 heads, 4.10's may do alot better because of a shift of torque towards the mid range with the extra flow
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