Trap speeds w/ converter?
Thread Starter
Staging Lane
Joined: Oct 2002
Posts: 67
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From: San Marcos/Coppell, TX
Trap speeds w/ converter? I've been researching converters for about a month now and I have a few questions. As I understand, a higher STR generally drops trap speeds correct?
So hypothetically, say I got a 3400 2.5. My trap speeds would be lower than with the OEM converter. To make up for the loss of hp, would it be beneficial to get say a 3400 1.75 but then install 3.73s? Or would this be the same exact senerio? Would this help my traps any?
I want improved ET's but don't want to lose mph at the same time. This is a daily driver but I don't mind going w/ a higher stall. So what would work best for me?
So hypothetically, say I got a 3400 2.5. My trap speeds would be lower than with the OEM converter. To make up for the loss of hp, would it be beneficial to get say a 3400 1.75 but then install 3.73s? Or would this be the same exact senerio? Would this help my traps any?
I want improved ET's but don't want to lose mph at the same time. This is a daily driver but I don't mind going w/ a higher stall. So what would work best for me?
Re: Trap speeds w/ converter? Many brands of converters lose a lot of HP on their higher STR and/or higher stall converters. I can tell you that my Yank has helped both ET and MPH and makes my car much faster from a roll.
TECH Senior Member
Joined: Nov 2001
Posts: 9,246
Likes: 3
From: Troy, AL
Re: Trap speeds w/ converter? Higher than stock STR does not necessarily mean a lower trap speed. Keeping the RPMs in the power range much better than stock combined with higher efficiency means better trap speeds despite high STRs in the cae of a good converter like a Yank.
For example, with my first Z28 I went from the stock converter, to a Yank Stealth, to a SY3500, to a TP4600. With each converter change I picked up MPH and improved my ET.
For example, with my first Z28 I went from the stock converter, to a Yank Stealth, to a SY3500, to a TP4600. With each converter change I picked up MPH and improved my ET.
Thread Starter
Staging Lane
Joined: Oct 2002
Posts: 67
Likes: 0
From: San Marcos/Coppell, TX
Re: Trap speeds w/ converter? So going w/ a lower STR and increasing my gear size numerically wouldn't do anything different than just going w/ a higher STR? I just don't want a converter that falls flat on its face after 2nd gear like some do.
Re: Trap speeds w/ converter? I had the granda daddy of all STR (~2.9) in a REAL loose Yank UT-4600.. car still trapped in the 114's with the stock motor... in fact the times in my signature.
The Yank TP series converters are the most efficent of both ends STR and Top end.
The Yank TP series converters are the most efficent of both ends STR and Top end.
TECH Senior Member
Joined: Nov 2001
Posts: 9,246
Likes: 3
From: Troy, AL
Re: Trap speeds w/ converter? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by ZYouL8R:
<strong>So going w/ a lower STR and increasing my gear size numerically wouldn't do anything different than just going w/ a higher STR? I just don't want a converter that falls flat on its face after 2nd gear like some do.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Ok, let's say you had a low STR but enough gear to cut 60 fts of 1.70. Let's say your trap speed was 110. If you had the same setup but with a higher STR but lower numerical gears that still gave you a 1.70 60 ft, your MPH would be just a little less. We're NOT talking about 3 MPH here. Just a little. Maybe 1. This is assuming the same stall speed in both cases, crossing the finish line in the same gear, and everything else being the same.
Do keep in mind that it takes ALOT of gear to make up the difference in starting line acceleration that a high STR would make. If I had to choose between 3.23 gears and a 2.7 STR or 4.10s and a 1.6 STR I'd take the 3.23 gears and 2.7 STR. They would no doubt kick the **** out of the the lower STR/more gear combo. Hell, even with 2.73s the higher STR would still win out.
<small>[ December 09, 2002, 07:08 PM: Message edited by: Colonel ]</small>
<strong>So going w/ a lower STR and increasing my gear size numerically wouldn't do anything different than just going w/ a higher STR? I just don't want a converter that falls flat on its face after 2nd gear like some do.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Ok, let's say you had a low STR but enough gear to cut 60 fts of 1.70. Let's say your trap speed was 110. If you had the same setup but with a higher STR but lower numerical gears that still gave you a 1.70 60 ft, your MPH would be just a little less. We're NOT talking about 3 MPH here. Just a little. Maybe 1. This is assuming the same stall speed in both cases, crossing the finish line in the same gear, and everything else being the same.
Do keep in mind that it takes ALOT of gear to make up the difference in starting line acceleration that a high STR would make. If I had to choose between 3.23 gears and a 2.7 STR or 4.10s and a 1.6 STR I'd take the 3.23 gears and 2.7 STR. They would no doubt kick the **** out of the the lower STR/more gear combo. Hell, even with 2.73s the higher STR would still win out.
<small>[ December 09, 2002, 07:08 PM: Message edited by: Colonel ]</small>
