BurnoutZ Posted July 26, 2008 Share Posted July 26, 2008 I have been wondering... Can you mate a l28et engine with a t56 transmission? Is a special mounting bracket needed? Quote Link to comment Share on other sites More sharing options...
jeffer949 Posted July 26, 2008 Share Posted July 26, 2008 I believe TonyD had one mated to one. for the LSR car. you might ask him Quote Link to comment Share on other sites More sharing options...
BurnoutZ Posted July 27, 2008 Author Share Posted July 27, 2008 Does it require a special bracket or modifications to mount a t56 to a l28et? Quote Link to comment Share on other sites More sharing options...
Challenger Posted July 27, 2008 Share Posted July 27, 2008 Im guessing it wouldnt be just a simple bolt up thing.. Unless the turbo Borg Warner T5 has a similar bolt pattern as the t56. I saw a Z on craigslist that advertised a 6 speed. Im not sure if he was stupid or if it was the t56. One thing you have to condsider with the t56 is the very high ratios. What are your plans for the motor. HP goals? Id your rear end is the 3.36 your looking at ~45 mph at 5600 in first. Maybe a ka swap, jeffs done it but Im not sure on ratios. http://forums.hybridz.org/showthread.php?t=98875 Quote Link to comment Share on other sites More sharing options...
BurnoutZ Posted July 27, 2008 Author Share Posted July 27, 2008 Im just looking at my options... I still have my 4 speed but upgrading the engine, im going to need to upgrade the transmission at some time and would like to use a 6 speed. Does anyone have any pictures/writeups of a t56 being mated to a l28et? I couldn't find any info using search... All I found was a t56 mated to a ls1. Quote Link to comment Share on other sites More sharing options...
jeffer949 Posted July 27, 2008 Share Posted July 27, 2008 The only guy Ive heard of running it is Tony D. Id pm him and ask for some input. Quote Link to comment Share on other sites More sharing options...
woldson Posted July 27, 2008 Share Posted July 27, 2008 Curiosty: Why a do you want a 6 speed? Quote Link to comment Share on other sites More sharing options...
Tony D Posted July 27, 2008 Share Posted July 27, 2008 Where is this thread where Tony D mentions he is running a T56 in a land speed car? Can somebody link that for me? >:^( I can tell you right now, the Bonneville Car has a NISMO Direct-Drive close-ratio five speed. And the Mod I assisted JeffP with was to fit a Tremec TKO onto a T-5 Bellhousing. No T56 in any of that menage of work. The only thing I would even consider the T56 on is the Turbo Project...and then, it's a toss with the 4.11 gearing we would have to run at the speeds we want. And that's more for torque handling capabilities than anything else. G-Force is making T5 Retrofit Gearset claims that make me stand up and take notice because not having to screw with mounts and linkages has some appeal... as well as 'selectable gear ratios'... I'm curious as well, why do you want, or have to posess 'a 6-Speed'? Quote Link to comment Share on other sites More sharing options...
jeffer949 Posted July 27, 2008 Share Posted July 27, 2008 Im sorry tony I could of sworn a long time ago i saw a picture in your photo album that had a picture of you bolting a red custom bellhousing onto an L-block for a transmission. Guess i was wrong. Sorry. This was back when i was on Zcar alot. hrmmm Quote Link to comment Share on other sites More sharing options...
BurnoutZ Posted July 27, 2008 Author Share Posted July 27, 2008 Curiosty: Why a do you want a 6 speed? I have heard that you can accelerate quicker and reach a higher top speed with a 6-speed. Also I've heard that the borg t-5 trans' 1st gear goes too quick with l28et... yes I know they were probably referring to a strong l28et that has been built but still. Comparing the two which would you guys say has more benefits? T-5 vs T-56? I've always thought t56 but maybe im wrong... I was just curious if anyone had ever put a 6 speed on a l28et and how it has worked out for them. Quote Link to comment Share on other sites More sharing options...
Doug71zt Posted July 27, 2008 Share Posted July 27, 2008 510six runs a T56 behind a 3.0 L-series. If I were you I would put in a Z32 5-spd with 240hoke's adapter. Cheap and more transmission than most L-series will ever need. The ratios are pretty good for a boosted engine also. You don't need the deep, deep 6th gear for the L-series and it wouldn't be happy pulling that ratio until probably 90 mph. Doug Quote Link to comment Share on other sites More sharing options...
BurnoutZ Posted July 27, 2008 Author Share Posted July 27, 2008 For gas mileage, wont 6th gear at 70-80 mph pull at 2k rpms? Wouldnt this produce better gas mileage on the highway? Quote Link to comment Share on other sites More sharing options...
Doug71zt Posted July 27, 2008 Share Posted July 27, 2008 From experience I can tell you that the L-series are a lot happier running 2500-2700 at 70-75mph than 2200. There isn't a lot of torque down there with the lower compression turbo engines. T-56 with .50 overdrive, 4.11 diff and 225/45/17 tires - Redline 6800. Top Gear gives 36.152 MPH/1000 RPM and a top speed of 245.834 MPH at 6800 RPM Engine speeds in top gear:- 30 MPH = 830 RPM 40 MPH = 1106 RPM 50 MPH = 1383 RPM 60 MPH = 1660 RPM 70 MPH = 1936 RPM 80 MPH = 2213 RPM 90 MPH = 2489 RPM 100 MPH = 2766 RPM T-56 with .62 overdrive, everything else the same. Top Gear gives 29.155 MPH/1000 RPM and a top speed of 198.253 MPH at 6800 RPM Engine speeds in top gear:- 30 MPH = 1029 RPM 40 MPH = 1372 RPM 50 MPH = 1715 RPM 60 MPH = 2058 RPM 70 MPH = 2401 RPM 80 MPH = 2744 RPM 90 MPH = 3087 RPM 100 MPH = 3430 RPM Z32 box with 225/45/17 tires and a diff ratio of 3.54. Redline is 6800 rpm. Top Gear gives 29.475 MPH/1000 RPM and a top speed of 200.432 MPH at 6800 RPM Engine speeds in top gear:- 30 MPH = 1018 RPM 40 MPH = 1357 RPM 50 MPH = 1696 RPM 60 MPH = 2036 RPM 70 MPH = 2375 RPM 80 MPH = 2714 RPM 90 MPH = 3053 RPM 100 MPH = 3393 RPM Here it is with a 3.7 diff ratio. Top Gear gives 28.241 MPH/1000 RPM and a top speed of 192.036 MPH at 6800 RPM Engine speeds in top gear:- 30 MPH = 1062 RPM 40 MPH = 1416 RPM 50 MPH = 1771 RPM 60 MPH = 2125 RPM 70 MPH = 2479 RPM 80 MPH = 2833 RPM 90 MPH = 3187 RPM 100 MPH = 3541 RPM Top Speed in 1 gear = 41.076 MPH And changes into 2 gear at 4249 RPM dropping 2551 RPM Top Speed in 2 gear = 65.738 MPH And changes into 3 gear at 4453 RPM dropping 2347 RPM Top Speed in 3 gear = 100.395 MPH And changes into 4 gear at 5000 RPM dropping 1800 RPM Top Speed in 4 gear = 136.537 MPH And changes into 5 gear at 4835 RPM dropping 1965 RPM Top Speed in 5 gear = 192.036 MPH It would be a pretty happy engine with the 3.7 ratio, and you could still crank out 200 mph at around 7K if you were nuts and had enough HP. Doug Quote Link to comment Share on other sites More sharing options...
Guest 280ZForce Posted July 27, 2008 Share Posted July 27, 2008 510six is the only 1 I know of to do it... it requires modifying a t5 bell to fit the t56. I, myself will be going this t56 route as well to the L. But I'm looking into different mating options to possibly run the Chevy clutch setups for more options instead of being stuck with L clutches. Quote Link to comment Share on other sites More sharing options...
BurnoutZ Posted July 28, 2008 Author Share Posted July 28, 2008 You should make a writeup of your success... if you have any... Quote Link to comment Share on other sites More sharing options...
Daeron Posted July 28, 2008 Share Posted July 28, 2008 And that's more for torque handling capabilities than anything else. G-Force is making T5 Retrofit Gearset claims that make me stand up and take notice because not having to screw with mounts and linkages has some appeal... as well as 'selectable gear ratios'... I'm curious as well, why do you want, or have to posess 'a 6-Speed'? The only answer to the question you closed on, tony, is the point you made immediately above it. I've been knocking around ideas of "finding" differing gears to install into these transmissions to tweak out fifth to a higher overdrive, and possibly even find a way to set fourth up just below direct drive as well... just to gain a little cruising speed and lower RPMs a tad. My car currently has the stock 3.54:1 rear end in it, and I wouldn't want to lower the rear end ratio unless I could bring fifth and maybe also fourth back to cruise at the same RPMs I do now... but if I COULD then I would love to see what 3.9s are like! Guys.. don't forget, SOME of us still like NA strokers with 200 lb of torque that comes on at 1500 RPM and keeps rising... this IS an inline six cylinder we are talking about! Quote Link to comment Share on other sites More sharing options...
BurnoutZ Posted July 28, 2008 Author Share Posted July 28, 2008 I think a 6 speed l28et would be a good project as it hasn't been done very often. Quote Link to comment Share on other sites More sharing options...
BurnoutZ Posted July 29, 2008 Author Share Posted July 29, 2008 Would a t56 trans require a bracket as a z32 transmission does to mate to a l28et? Quote Link to comment Share on other sites More sharing options...
Challenger Posted July 29, 2008 Share Posted July 29, 2008 What do you mean bracket, as in the spacer austin makes or a transmission mount? If you had stayed with your ls7 swap this would be alot easier I assume. Quote Link to comment Share on other sites More sharing options...
BurnoutZ Posted July 29, 2008 Author Share Posted July 29, 2008 Yes, would a spacer be needed I guess I should say... Quote Link to comment Share on other sites More sharing options...
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