Disappointing TH400\Gearvendors results
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Here it is.
ET 1/4 mile 12.6480
ET 1/8 mile 8.0161
RT 2.5322
MPH 106.3508
60 ft. 1.6681 (sucky track)
I have the YANK UT 4400, ET Drags 26" /w tubes and borla catback and a lid. My previous best was 12.72 @ 110.1 with the stock converter and 4l60e. It seems the TH400\Gearvendors combo is to heavy for a stock motor even with the big stall. Well there you have it.
ET 1/4 mile 12.6480
ET 1/8 mile 8.0161
RT 2.5322
MPH 106.3508
60 ft. 1.6681 (sucky track)
I have the YANK UT 4400, ET Drags 26" /w tubes and borla catback and a lid. My previous best was 12.72 @ 110.1 with the stock converter and 4l60e. It seems the TH400\Gearvendors combo is to heavy for a stock motor even with the big stall. Well there you have it.
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Yes it was my first time at the track no I did not try to use any the OD gears... I need to get used to shifting them. I just used the normal TH400 gears.
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That's really not that bad especially since you werent even using the GV unit at all. I ran a 12.74 @ 110 with my 6spd in the car that was on a 1.98 60'. After putting a TH400 with a 4500 stall and a ford 9" rear end I managed a 12.56 @ 108 on a 1.74 60' with it. considering the added weight and parasitic loss of the TH400 and 9" I was very pleased with the results. My car is basically the same as yours I just have an airlid and exhaust cutout on it. My raceweight at the time of the 12.56 run was 3570. I wouldn't worry about it though. Dont expect to pick much up as far as times goes when you add weight and parasitic HP loss. BUT the plus side is now you have a bulletproof drivetrain AND an overdrive <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />
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</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> well.. I suggest doing some testing and tuning at the track. What size are the ET Drags 26x___ ? </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yeah,
My tires are 26x10x15. Maybe I should get ET streets they don't kill mph quite as much?
My tires are 26x10x15. Maybe I should get ET streets they don't kill mph quite as much?
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I think ET drags are a little too much tire for you.....
I will be doing a test with my car pretty soon...I just put in a TH400 and 12-bolt w/3.73
with the J stator 4500 stall... <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
I made like 370rwhp when it was a 6-speed so I assume I will lose somewhere from 20-25rwhp through the new drivetrain...I'm hoping for 11.7's on my "stock" bilstein suspension
I will be doing a test with my car pretty soon...I just put in a TH400 and 12-bolt w/3.73
with the J stator 4500 stall... <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
I made like 370rwhp when it was a 6-speed so I assume I will lose somewhere from 20-25rwhp through the new drivetrain...I'm hoping for 11.7's on my "stock" bilstein suspension
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</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> Downside is the 4L60E won't stand up to 500+ rwhp for very long. A TH400 is pretty bulletproof. If you don't plan on running you torque and hp into the 500+ range, you may have wished you stayed with a faster "built" 4L60E.</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">True... And yes I plan on going into the 500+ range on the bottle... I knew it would slow me down but a 4 mph loss?! Ooooff!!
BTW I have a 3.06 first gear in my TH400 <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
Well atleast it won't break... <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" />
BTW I have a 3.06 first gear in my TH400 <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
Well atleast it won't break... <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" />
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if i race you at the track and you win but i trap 4mph higher...will you give a ****? i wouldnt. be happey you have a trans/drivetrain that wont break. what rear/gears do you have? also, i would be worth while to stick with a TP4400 or maybe a 10" 4500 stall. i dont think ive ever seen a good time from a Ultra Thruster or Ultra Yank. Gear up in the rear and USE the OD. id wont even sound like your shifting at the track the gears will be split so much. thats what its for! 3.06-1.52 is a lot...split that in half and thats less shift extension.
to recap:
AT LEAST 3.89's
USE the GVOD
Switch to a TP4400, and stall it as high as you can, then stab it and shift.
Ryan
to recap:
AT LEAST 3.89's
USE the GVOD
Switch to a TP4400, and stall it as high as you can, then stab it and shift.
Ryan
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Hmm now when I let off the gas and coast I hear a awful noise... Almost like a grinding... It sounds like my gears... Did I just blow up my 10 bolt? <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />
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Wow, I can't believe that car is still on the 10-bolt...my car is almost ready to come out...this monday I'm picking it up, then a week after I am going to the track, I will make sure to make a big post about the dyno #'s and the track #'s <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />
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Your results are pretty typical for a TH400 swap. What people don't understand is that the 4L60E is a much faster tranny than the TH400 (stock for stock). The 4L60E has the awesome 3.06 1st gear (which really helps your 60' times) and has lighter internals with less parasitic drag.
Downside is the 4L60E won't stand up to 500+ rwhp for very long. A TH400 is pretty bulletproof. If you don't plan on running you torque and hp into the 500+ range, you may have wished you stayed with a faster "built" 4L60E.
Downside is the 4L60E won't stand up to 500+ rwhp for very long. A TH400 is pretty bulletproof. If you don't plan on running you torque and hp into the 500+ range, you may have wished you stayed with a faster "built" 4L60E.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
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</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by WS6 Chewbaca:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> well.. I suggest doing some testing and tuning at the track. What size are the ET Drags 26x___ ? </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yeah,
My tires are 26x10x15. Maybe I should get ET streets they don't kill mph quite as much?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">That's a WIDE tire. The ET Streets and Drags are sized differently (why I have no idea).
The 26x10 ET Drags are true 10" tire, where the ET Street in a 26x10.5 is about a 8" contact patch.
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> well.. I suggest doing some testing and tuning at the track. What size are the ET Drags 26x___ ? </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yeah,
My tires are 26x10x15. Maybe I should get ET streets they don't kill mph quite as much?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">That's a WIDE tire. The ET Streets and Drags are sized differently (why I have no idea).
The 26x10 ET Drags are true 10" tire, where the ET Street in a 26x10.5 is about a 8" contact patch.
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I'm just saying for drag racing purposes...I wounldn't think the 10-bolt would last very long... <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
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</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> Oh by the way, was that run off the brake? </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">No it was not off the brake.
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I'm sure you could of ran a 12.3 off the brake..or if you had some full drag suspension and took out a little weight it would be a 12.0 stock motored car... <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />