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Bus Specifications/Descriptions


garmon757

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Current Roster
New Flyer XE40 700-series
Engine: Siemens
Transmission: Undisclosed

New Flyer DE40LF 800-series
Engine: Cummins ISL
Transmission: Allison EP40

New Flyer DE40LF 900-series
Engine: Cummins ISB
Transmission: ISE ThunderVolt Hybrid System

New Flyer DE60LF 4000-series
Engine: Cummins ISL
Transmission: Allison EP50 Hybrid System

New Flyer DE60LFR 4300-32
Engine: Cummins ISL9
Transmission: Allison EP50 Hybrid System

New Flyer D60LFR 4333-99
Engine: Cummins ISL9
Transmission: ZF 6AP1700B

Nova Bus LFS 1st Gen 6400-series
Engine: Cummins ISC
Transmission: ZF 5HP552C

Nova Bus LFS 2nd Gen 7900-series
Engine: Cummins ISL9
Transmission: ZF 6AP1400B

Retired Roster (2002-2014)
Optima Opus 500-series
Engine: Cummins ISB
Transmission: ZF 5HP502C

Flxible 40102-4D Metro 'E' 6000-6304
Engine: Detroit Diesel Series 50
Transmission: Allison V731

Flxible 40102-6M Metro 'E' 6305-6329
Engine: Cummins M11E
Transmission: ZF 4HP590

NABI 60-LFW 7500-series
Engine: Detroit Diesel Series 50
Transmission: ZF 6HP602C

New Flyer D40LF 5800-series
Engine: Detroit Diesel Series 50
Transmission: ZF-Ecomat 5HP590

Flxible 40102-6T Metro 'B' 5300-5499 5765-69
Engine: Detroit Diesel 6V92TA
Transmission: Allison V731

Flxible 40102-6TL Metro 'B' 5500-5744
Engine: Detroit Diesel 6L71N
Transmission: Allison V731

Flxible 40102-6TC Metro 'B' 5745-5764
Engine: Cummins L10
Transmission: ZF 4HP500 (5745-5754)
Voith D863.3 (5755-5764)

TMC RTS-08 4400-series
TMC T80-608/RTS-08 4900-series
Engine: Detroit Diesel 6V92TA
Transmission: ZF-Ecomat 5HP590

Maschinenfabrik Augsburg-Nürnberg (MAN)
SL-40102N (Americana) 4000-series
SG-31016.5-2L (Articulated) 7100-series
SG-31018-2L (Articulated) 7300-series
Engine: MAN D2566 MLUH 4000-series
MAN D2566 MLUM 71/7300-series
Transmission: Renk-Doromat 874B

Flyer (New Flyer) D901A 1600/9800-series
Engine: Detroit Diesel 6V71N
*Rehabbed to Detroit Diesel 6V92TA after 1992
Transmission: Allison V730

This should help some guests and members if necessary. Also, this can help by filling in the gaps on the "Buses" page under bus specifications if Kevin needed some more information. Any questions or comments about it, feel free to ask or say anything. I highly recommend any member to not quote this because this is awfully a long list and to save some space.

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I was always under the impression that 5735-5744 were the only ones with 6L-71N (Inline) engines, with 5500-5534 having standard 6V-92TA's like 5300-5499. 5765-5769 had particulate traps that were removed after a couple of years. Had the big "bulge" in the interior ceiling in the rear.

I was thinking carefully about 5300-5544 having 6V92TA engines but 5765-69 are the tricky ones.
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You left out the 1000s NFs. Is this because of the ongoing rehabs?

I didn't add it because it's specification are perfectly detailed on its page under "Buses".

Not to mention the 1000 series' specs are quite varied in terms of engine and transmission combinations depending on fleet number groups.

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I was under the impression that both the 4333s and 7900s had Allison transmissions and that the 6000s all had ZFs.

4333-99 are not electric buses in which they are not compatible with any kind of Allison transmissions. I'm not sure if any Nova bus models are compatible with any Allison transmissions also if anybody can clarify that. 6305-6329 Cummins L10 engines had more horsepower than 6000-6304 Detroit Series 50's making it extremely compatible with a ZF transmission.

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4333-99 are not electric buses in which they are not compatible with any kind of Allison transmissions. I'm not sure if any Nova bus models are compatible with any Allison transmissions also if anybody can clarify that. 6305-6329 Cummins L10 engines had more horsepower than 6000-6304 Detroit Series 50's making it extremely compatible with a ZF transmission.


If you read any bus assembler site, just about any can put a ZF, Allison, or Voith transmission in any diesel bus. Nova spec sheet; New Flyer specs (click on propulsion),

The only thing distinctive about Allison is that they have the predominant parallel hybrid drive.
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4333-99 are not electric buses in which they are not compatible with any kind of Allison transmissions. I'm not sure if any Nova bus models are compatible with any Allison transmissions also if anybody can clarify that. 6305-6329 Cummins L10 engines had more horsepower than 6000-6304 Detroit Series 50's making it extremely compatible with a ZF transmission.

I've riden the 4300 diesels and am positive that I saw an Allison transmission gearbox. I didn't have a chance to ride a 7900 Nova yet, but from the video I saw, I thought those were Allison transmissions.

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4333-99 are not electric buses in which they are not compatible with any kind of Allison transmissions. I'm not sure if any Nova bus models are compatible with any Allison transmissions also if anybody can clarify that. 6305-6329 Cummins L10 engines had more horsepower than 6000-6304 Detroit Series 50's making it extremely compatible with a ZF transmission.

That's not really correct since NFs 1930-2029 aren't electric either but all 100 of those have Allison transmissions. So it is possible for 4333-4399 to have Allison transmissions.

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That's not really correct since NFs 1930-2029 aren't electric either but all 100 of those have Allison transmissions. So it is possible for 4333-4399 to have Allison transmissions.

Confirmed by the rehab specs.:

post-14-0-86132600-1411998739_thumb.jpg

If that's the case then why cta didn't purchase them for 4333-99???

The antecedent is indefinite, but it seems a combination of (1) this was a rush procurement for the Red Line South project based on Seattle options (2) and if you can get anything out of the 50-150 articulated bus procurement Q&A that a ZF transmission would not meet CTA specs for acceleration of a 60 foot bus, including an XD60.

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Powertrain for the TMC RTS should be Detroit Diesel 6V92, not 6V92TA.

Listen to this 6V92... it sounds very much like a TMC on takeoff...

Krambles's book.page 54, says in the caption to the Metro picture that the majority of the 1991 order was 6V92T, while testing 20 Cummins L-10 and 5 DD6v91s. However, he doesn't say anything directly in the caption to the TMC picture.

But, to support your assertion, you would need proof that the 4400s had different engines (i.e. no turbochargers) compared to most of the 5300s.

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Confirmed by the rehab specs.:

attachicon.gifallison.jpg

The antecedent is indefinite, but it seems a combination of (1) this was a rush procurement for the Red Line South project based on Seattle options (2) and if you can get anything out of the 50-150 articulated bus procurement Q&A that a ZF transmission would not meet CTA specs for acceleration of a 60 foot bus, including an XD60.

Fair enough. Do you think cta sticks with Allison's for future buses?

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Fair enough. Do you think cta sticks with Allison's for future buses?

I suppose that's a question similar to whether they will use Freedman Gemini seats for future buses or go back to American Seating--it is an option that may make sense for certain reasons, but doesn't make much difference on the bottom line (maybe in this case the transmission did). Another possible factor is Buy America requirements (60% U.S. content) in that Allison is in Indianapolis and ZF is a German company, although it has plants in the U.S.

BTW, it appears that GM split off Allison, which is now an independent company.

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I suppose that's a question similar to whether they will use Freedman Gemini seats for future buses or go back to American Seating--it is an option that may make sense for certain reasons, but doesn't make much difference on the bottom line (maybe in this case the transmission did). Another possible factor is Buy America requirements (60% U.S. content) in that Allison is in Indianapolis and ZF is a German company, although it has plants in the U.S.

BTW, it appears that GM split off Allison, which is now an independent company.

I'm not so sure that Buy America has much to do with why CTA opted for Allison transmissions in the 4333s (and presumably 7900s). Voith, if I'm not mistaken, is also a German company and has their transmissions on new buses that post-dated the 4333s; Denver, as I recall, also specs their buses out with ZF transmissions.

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If that's the case then why cta didn't purchase them for 4333-99???

Confirmed by the rehab specs.:

attachicon.gifallison.jpg

The antecedent is indefinite, but it seems a combination of (1) this was a rush procurement for the Red Line South project based on Seattle options (2) and if you can get anything out of the 50-150 articulated bus procurement Q&A that a ZF transmission would not meet CTA specs for acceleration of a 60 foot bus, including an XD60.

It's also confirmed by Kevin having researched this and stating under the Buses section that 1930-2029 all having Allison B400 transmissions.

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