** drag zilvians chime in** - Page 46 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

2muchboost · 12-08-2014, 09:13 AM

@Tom...are you referring to the ET Street Radials or Bias Ply? I have used my ET Street Radials on the street and enjoyed them after warming them up but before they are warm or in the rain....be cautious.

Tom N · 12-12-2014, 09:08 AM

Anyone know what the 1/4 mile record for a stock location T2 framed turbo is?

Tom N · 12-12-2014, 10:04 AM

Quote:

Originally Posted by 2muchboost

@Tom...are you referring to the ET Street Radials or Bias Ply? I have used my ET Street Radials on the street and enjoyed them after warming them up but before they are warm or in the rain....be cautious.

I'm sorry I'm not sue what your question is referring to?

slow92 · 12-12-2014, 05:16 PM

Quote:

Originally Posted by Tom N

Anyone know what the 1/4 mile record for a stock location T2 framed turbo is?

I thought there was a member on zilvia a while back that boasted about having this record but I can't remember his username. I do remember him having a video of it on YouTube. It was a red 89-94 hatch I think.

Kuma · 12-12-2014, 09:32 PM

why would clutch type lsd be better than helical for drag racing? Wouldn't it be harder to break traction if power transfers to the side with most traction?

jr_ss · 12-12-2014, 10:10 PM

Power isn't evenly distributed with a helical. That's why its not "ideal". Yes, it still works and is much better than a worn out VLSD or open diff. Having a diff that supplies the power evenly to both wheels is better for all out drag racing.

s13 drifta · 12-13-2014, 09:46 AM

Quote:

Originally Posted by Tom N

Anyone know what the 1/4 mile record for a stock location T2 framed turbo is?

Whereda40at claims to have to t2 record.

WORLDS FASTEST T-2 TURBO 240 ON 93 OCTANE!
10.79 @ 124 MPH WITH A 1.48 60'

JSimpson · 12-14-2014, 05:50 PM

Guys I have searched and searched, is there any definitive write up of what is needed to get the Q45 diff setup into an S chassis? Most have opinions but are not "sure" of any factual info. For the guys out there that have can you point me in a solid direction?

I'm on the fence about buying the $1,600 DSS axles, but it only makes so much sense when the weak link will be the output shafts...
On the other side of the fence, I am not thrilled about a Q45 shot ass VLSD with one-tire-fires on the street. I have had damn near every diff option in my 14 and I love my kaaz 2 way. Question being, is the Z32 differential itself the same as the Q45 diff itself?? Reason being: If we can swap in a Z32 kaaz 2 way with the bigger output shafts/axles/hubs, the more the merrier?

Thanks guys!!

Tom N · 12-14-2014, 06:31 PM

Quote:

Originally Posted by JSimpson

Guys I have searched and searched, is there any definitive write up of what is needed to get the Q45 diff setup into an S chassis? Most have opinions but are not "sure" of any factual info. For the guys out there that have can you point me in a solid direction?

I'm on the fence about buying the $1,600 DSS axles, but it only makes so much sense when the weak link will be the output shafts...
On the other side of the fence, I am not thrilled about a Q45 shot ass VLSD with one-tire-fires on the street. I have had damn near every diff option in my 14 and I love my kaaz 2 way. Question being, is the Z32 differential itself the same as the Q45 diff itself?? Reason being: If we can swap in a Z32 kaaz 2 way with the bigger output shafts/axles/hubs, the more the merrier?

Thanks guys!!

I have broke many axels and it's always the inner cv cup that breaks. I would go with the $1000 dss axels. I bet those will be enough for most of us.

2muchboost · 12-15-2014, 10:13 AM

I think this is what you are after:
http://www.ka24development.com/vlsd.html

I did the 3.54 Q45 swap after seeing a few high powered cars use this on the street and track with great results. The axles are a larger spline axle for this swap.

Sforteen · 12-15-2014, 07:02 PM

the q45 300zxtt and GTR axles are alot better design and bigger, 29spline vs 32 spline

Im running a R230 rear end and R32 GTR rear axles.

2muchboost · 12-15-2014, 07:53 PM

^^^nice work and fab skills on your write up.

Sforteen · 12-15-2014, 09:19 PM

Quote:

Originally Posted by 2muchboost

^^^nice work and fab skills on your write up.

Thanks! hopefully it holds up!

2muchboost · 12-16-2014, 08:00 AM

Should have no issues. A few guys like HEEB and BabillaRacing on SupraForums had this type of setup with 0 issues. Both were launching hard off the line with big power. Babilla then swapped out to the 350z 3.3 LSD if memory serves me right which took the same amount of work as the R230 swap. If I am not mistaken someone also swapped in the Armada version of the R230 on an LS powered car.

s13 drifta · 12-18-2014, 06:31 PM

To those that are running a q45 3.54 rear end. How did the final gear effect your 1/4 mile times and how much power are you making?

Tom N · 12-18-2014, 06:43 PM

Quote:

Originally Posted by s13 drifta

To those that are running a q45 3.54 rear end. How did the final gear effect your 1/4 mile times and how much power are you making?

What size tire one was running with the above info would help also.

JSimpson · 12-18-2014, 07:54 PM

Quote:

Originally Posted by s13 drifta

To those that are running a q45 3.54 rear end. How did the final gear effect your 1/4 mile times and how much power are you making?

Assuming you're running an SR, lower rear ratio is the wrong direction for 1/4 mile times. Mazworx ran the 4.63 and swore by them with the SR. I swapped from 4.083 stock to 4.63 and the car is much quicker on the bottom. ETs better and MPHs better. I used 18s with 275/35 toyos and 26 inch hoosier wrinkle wall drag slicks, very similar in diameter.

A 3.54 will make the car much laggier in low gears. You can go to the Q45 diff and swap the ring and pinion as to have the higher ratio and stronger axles.

2muchboost · 12-19-2014, 08:59 AM

^I would have to agree with J there. The 3.54 setup is not appropriate for all projects. I chose to go that route cause my initial setup was a 800rwhp 2J with R154 and now I am onto a 5.3 GM turbo setup with GTO T56.

silviaNC · 12-19-2014, 11:57 PM

I went with q45 setup but putting a j30 3.91 ring an pinion. Using z32 tranny on a built 650hp rb26. I did the calculator and it will put me around 122mph in 3rd gear and 158 on 4th @ 8k Rpms .Going to double check and post it. And a 6 speed have much shorter ratios so make sense to have a lower rear end.

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silviaNC · 12-20-2014, 12:00 AM

Here is the calculation with a 3.54

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silviaNC · 12-20-2014, 12:01 AM

And a 4.08.

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s13 drifta · 12-20-2014, 09:10 AM

I'm was running a j30 3.91 with a 370whp sr20det and I like the slightly taller final gear. For the 2015 season, I should be making 500whp. I want to upgrade the axles, so I already got my q45 rear end. I plan on trying the 3.91 final with my new setup first, then switch over to the 3.54 and compare the two. It would be nice to run the 1/4 in 3rd gear at 130mph. One less shift.

slow92 · 12-20-2014, 04:39 PM

If those figures are correct I don't see why the 3.54 final is bad for drag racing. The taller gears mean less shifting which makes it more like an auto and you can run the gears out. Plus if you have a 2 step or launch mode in your ecu you would be able to play with the amount of boost the car launches at. I think I will stick with the 3.54 for a while plus I am revving to at least 9k so the taller gears should work perfectly.

Sforteen · 12-20-2014, 08:46 PM

I'm running a 4.10 ratio, i had a 4.63 but i broke the pinion. I think a 4.3X would be ideal. i ran 136mph in the 1/4 on the 4.10 still in 3rd

s13 drifta · 12-21-2014, 11:45 AM

Quote:

Originally Posted by slow92

If those figures are correct I don't see why the 3.54 final is bad for drag racing. The taller gears mean less shifting which makes it more like an auto and you can run the gears out. Plus if you have a 2 step or launch mode in your ecu you would be able to play with the amount of boost the car launches at. I think I will stick with the 3.54 for a while plus I am revving to at least 9k so the taller gears should work perfectly.

Yeah, that's what I was thinking. If you have enough power to pull the taller gear, it will allow you to run the 1/4 in 3rd gear and that's one less shift. Did you already get your q45 setup? 9k rpm is going to be nice.

Quote:

Originally Posted by Sforteen

I'm running a 4.10 ratio, i had a 4.63 but i broke the pinion. I think a 4.3X would be ideal. i ran 136mph in the 1/4 on the 4.10 still in 3rd

What's tranny are you running?

Tom N · 12-21-2014, 12:25 PM

Must be a Z32 trans.

slow92 · 12-21-2014, 05:18 PM

[QUOTE=s13 drifta;5788396]Yeah, that's what I was thinking. If you have enough power to pull the taller gear, it will allow you to run the 1/4 in 3rd gear and that's one less shift. Did you already get your q45 setup? 9k rpm is going to be nice.

Yes I did.

Sforteen · 12-21-2014, 07:36 PM

Quote:

Originally Posted by Tom N

Must be a Z32 trans.

Using RB25 trans, but pretty much the same internally as Z32

silviaNC · 01-08-2015, 10:37 PM

Quote:

Originally Posted by Silvia479whp

What spring rate u have on those coilovers?

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silviaNC · 01-08-2015, 10:40 PM

Just to share car is currently on the Dyno. Goal is 19 psi
So far
395@ 9 psi
450@ 11 psi
560@ 16 psi 8,400 rpm
Final will be 19 psi @ 9k rpm. 600hp is the target.
And this is on pump 93 octane
I don't think I even need to use the methanol aem kit unless want to shoot for 650-700hp

Sent from my iPhone using Tapatalk

12-12-2014, 09:08 AM	#1352
Tom N Zilvia Addict Join Date: Oct 2012 Location: SW Florida Posts: 746 Trader Rating: (1) Feedback Score: 1 reviews	Anyone know what the 1/4 mile record for a stock location T2 framed turbo is? __________________ 98 240sx w/ S15 SR20DET, T2 20g, 11.22 @ 124.98

12-12-2014, 10:10 PM	#1356
jr_ss Post Whore! Join Date: Dec 2005 Location: Pa Posts: 6,412 Trader Rating: (35) Feedback Score: 35 reviews	Power isn't evenly distributed with a helical. That's why its not "ideal". Yes, it still works and is much better than a worn out VLSD or open diff. Having a diff that supplies the power evenly to both wheels is better for all out drag racing. __________________ My SR20VET Does your VTC gear rattle in your S14/15 SR? PM me.

12-18-2014, 06:31 PM	#1365
s13 drifta Post Whore! Join Date: Aug 2006 Location: Gardnerville,NV Posts: 2,515 Trader Rating: (105) Feedback Score: 105 reviews	To those that are running a q45 3.54 rear end. How did the final gear effect your 1/4 mile times and how much power are you making? __________________ PM me for s13 or s14 parts!

12-19-2014, 11:57 PM	#1369
silviaNC Zilvia Addict Join Date: Feb 2012 Location: North Carolina Age: 40 Posts: 937 Trader Rating: (17) Feedback Score: 17 reviews	drag zilvians chime in I went with q45 setup but putting a j30 3.91 ring an pinion. Using z32 tranny on a built 650hp rb26. I did the calculator and it will put me around 122mph in 3rd gear and 158 on 4th @ 8k Rpms .Going to double check and post it. And a 6 speed have much shorter ratios so make sense to have a lower rear end. Sent from my iPhone using Tapatalk

12-20-2014, 09:10 AM	#1372
s13 drifta Post Whore! Join Date: Aug 2006 Location: Gardnerville,NV Posts: 2,515 Trader Rating: (105) Feedback Score: 105 reviews	I'm was running a j30 3.91 with a 370whp sr20det and I like the slightly taller final gear. For the 2015 season, I should be making 500whp. I want to upgrade the axles, so I already got my q45 rear end. I plan on trying the 3.91 final with my new setup first, then switch over to the 3.54 and compare the two. It would be nice to run the 1/4 in 3rd gear at 130mph. One less shift. __________________ PM me for s13 or s14 parts!

12-08-2014, 09:13 AM	#1351
2muchboost Nissanaholic! Join Date: Apr 2003 Location: Austin, TX Age: 40 Posts: 2,183 Trader Rating: (33) Feedback Score: 33 reviews	@Tom...are you referring to the ET Street Radials or Bias Ply? I have used my ET Street Radials on the street and enjoyed them after warming them up but before they are warm or in the rain....be cautious.

12-12-2014, 09:32 PM	#1355
Kuma Zilvia Addict Join Date: May 2012 Location: The last house on the right Age: 38 Posts: 758 Trader Rating: (0) Feedback Score: 0 reviews	why would clutch type lsd be better than helical for drag racing? Wouldn't it be harder to break traction if power transfers to the side with most traction?

12-14-2014, 05:50 PM	#1358
JSimpson Banned from the Marketplace Join Date: Nov 2009 Location: Indiana Posts: 1,009 Trader Rating: (15) Feedback Score: 15 reviews	Guys I have searched and searched, is there any definitive write up of what is needed to get the Q45 diff setup into an S chassis? Most have opinions but are not "sure" of any factual info. For the guys out there that have can you point me in a solid direction? I'm on the fence about buying the $1,600 DSS axles, but it only makes so much sense when the weak link will be the output shafts... On the other side of the fence, I am not thrilled about a Q45 shot ass VLSD with one-tire-fires on the street. I have had damn near every diff option in my 14 and I love my kaaz 2 way. Question being, is the Z32 differential itself the same as the Q45 diff itself?? Reason being: If we can swap in a Z32 kaaz 2 way with the bigger output shafts/axles/hubs, the more the merrier? Thanks guys!!

12-15-2014, 10:13 AM	#1360
2muchboost Nissanaholic! Join Date: Apr 2003 Location: Austin, TX Age: 40 Posts: 2,183 Trader Rating: (33) Feedback Score: 33 reviews	I think this is what you are after: http://www.ka24development.com/vlsd.html I did the 3.54 Q45 swap after seeing a few high powered cars use this on the street and track with great results. The axles are a larger spline axle for this swap.

12-15-2014, 07:02 PM	#1361
Sforteen Zilvia Junkie Join Date: Nov 2010 Location: USA Posts: 333 Trader Rating: (0) Feedback Score: 0 reviews	the q45 300zxtt and GTR axles are alot better design and bigger, 29spline vs 32 spline Im running a R230 rear end and R32 GTR rear axles.

12-15-2014, 07:53 PM	#1362
2muchboost Nissanaholic! Join Date: Apr 2003 Location: Austin, TX Age: 40 Posts: 2,183 Trader Rating: (33) Feedback Score: 33 reviews	^^^nice work and fab skills on your write up.

12-16-2014, 08:00 AM	#1364
2muchboost Nissanaholic! Join Date: Apr 2003 Location: Austin, TX Age: 40 Posts: 2,183 Trader Rating: (33) Feedback Score: 33 reviews	Should have no issues. A few guys like HEEB and BabillaRacing on SupraForums had this type of setup with 0 issues. Both were launching hard off the line with big power. Babilla then swapped out to the 350z 3.3 LSD if memory serves me right which took the same amount of work as the R230 swap. If I am not mistaken someone also swapped in the Armada version of the R230 on an LS powered car.

12-19-2014, 08:59 AM	#1368
2muchboost Nissanaholic! Join Date: Apr 2003 Location: Austin, TX Age: 40 Posts: 2,183 Trader Rating: (33) Feedback Score: 33 reviews	^I would have to agree with J there. The 3.54 setup is not appropriate for all projects. I chose to go that route cause my initial setup was a 800rwhp 2J with R154 and now I am onto a 5.3 GM turbo setup with GTO T56.

12-20-2014, 12:00 AM	#1370
silviaNC Zilvia Addict Join Date: Feb 2012 Location: North Carolina Age: 40 Posts: 937 Trader Rating: (17) Feedback Score: 17 reviews	Here is the calculation with a 3.54 Sent from my iPhone using Tapatalk

12-20-2014, 12:01 AM	#1371
silviaNC Zilvia Addict Join Date: Feb 2012 Location: North Carolina Age: 40 Posts: 937 Trader Rating: (17) Feedback Score: 17 reviews	And a 4.08. Sent from my iPhone using Tapatalk

12-20-2014, 04:39 PM	#1373
slow92 Zilvia Junkie Join Date: Jun 2008 Location: NV Posts: 423 Trader Rating: (16) Feedback Score: 16 reviews	If those figures are correct I don't see why the 3.54 final is bad for drag racing. The taller gears mean less shifting which makes it more like an auto and you can run the gears out. Plus if you have a 2 step or launch mode in your ecu you would be able to play with the amount of boost the car launches at. I think I will stick with the 3.54 for a while plus I am revving to at least 9k so the taller gears should work perfectly. __________________ Sr22 in the works

12-20-2014, 08:46 PM	#1374
Sforteen Zilvia Junkie Join Date: Nov 2010 Location: USA Posts: 333 Trader Rating: (0) Feedback Score: 0 reviews	I'm running a 4.10 ratio, i had a 4.63 but i broke the pinion. I think a 4.3X would be ideal. i ran 136mph in the 1/4 on the 4.10 still in 3rd

12-21-2014, 12:25 PM	#1376
Tom N Zilvia Addict Join Date: Oct 2012 Location: SW Florida Posts: 746 Trader Rating: (1) Feedback Score: 1 reviews	Must be a Z32 trans. __________________ 98 240sx w/ S15 SR20DET, T2 20g, 11.22 @ 124.98

12-21-2014, 05:18 PM	#1377
slow92 Zilvia Junkie Join Date: Jun 2008 Location: NV Posts: 423 Trader Rating: (16) Feedback Score: 16 reviews	[QUOTE=s13 drifta;5788396]Yeah, that's what I was thinking. If you have enough power to pull the taller gear, it will allow you to run the 1/4 in 3rd gear and that's one less shift. Did you already get your q45 setup? 9k rpm is going to be nice. Yes I did. __________________ Sr22 in the works

01-08-2015, 10:40 PM	#1380
silviaNC Zilvia Addict Join Date: Feb 2012 Location: North Carolina Age: 40 Posts: 937 Trader Rating: (17) Feedback Score: 17 reviews	Just to share car is currently on the Dyno. Goal is 19 psi So far 395@ 9 psi 450@ 11 psi 560@ 16 psi 8,400 rpm Final will be 19 psi @ 9k rpm. 600hp is the target. And this is on pump 93 octane I don't think I even need to use the methanol aem kit unless want to shoot for 650-700hp Sent from my iPhone using Tapatalk