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Author Topic: Rancho Pro-Street gearbox  (Read 59120 times)
ovaldriver56
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Posts: 65



« Reply #90 on: March 09, 2011, 19:36:13 pm »

Does that mean, that is advertised with an 3,78 first gear, but it doesn´t has it installed?
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Jesse/DVK
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'64 2176cc


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« Reply #91 on: March 09, 2011, 21:28:22 pm »

Best to ask Gunter. But if it's advertised it should be in there..
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Der Vollgas Kreuzers
ovaldriver56
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« Reply #92 on: March 13, 2011, 11:41:48 am »

Maybee Gunter could give a statement?
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Diederick/DVK
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« Reply #93 on: March 13, 2011, 16:04:47 pm »

maybe ask him personally, i'm not sure he (regularly) checks each and every topic on here.
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Diederick
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DVK ~ Der Vollgas Kreuzers
181
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Posts: 632


« Reply #94 on: May 16, 2011, 15:24:01 pm »

So..decision time. Going to pick up my new rancho gearbox on Wednesday.

What would you choose? 4,12:1 or 3.875:1 gering? I´m set on 0,89 4th and I don´t have cash to design and set up fully individual transmission.

Type 181 weight is 900kg with fluids, 1 ton with me :-)

Engine is 2276cc, FK8 cam, 1.4 rockers, steve tims stage 2 heads (42x39), 48 DRLAs with 40 vents on lo...ong intakes, 1 5/8 exhaust, around 160RWHP I believe?

sporting 205/65R15 radials on the back.

BRAINSTORM NOW!

Thank you all!

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Harry/FDK
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Every Rule Was Made To Break, Even Callook...


« Reply #95 on: May 16, 2011, 17:45:06 pm »

I've made a big mistake: 4.12 R/P with 0.89 4th gear. Waaaay to long.
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Done ? Not Yet.
181
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« Reply #96 on: May 24, 2011, 09:24:16 am »

I do some freeway driving so I can´t have close ratio transmission Embarrassed
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Rocket Ron
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« Reply #97 on: May 24, 2011, 22:22:05 pm »

if its any help

my bug is full weight with extra dyno mat etc ie heavy

ran a 13.73 with treads  a 1.97 60 ft and no lightening with a very similar engine to yours k8 1.4 42 x 39 and 8.1 compression and 48idas with 40 vents not DRLAs ie tame

rear tires are 205 75 15

box is a pro street with super beetle first 3.88 ring and pinion and a .89 4th

mph through the traps was 96.42 mph in 4th

would do 80 ish in 4th just under 4000 rpm if i remember rightly  Wink

Regards Ron
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13.12 @ 101.84

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181
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« Reply #98 on: June 10, 2013, 11:45:45 am »

Hi again after 3 years:-)

Finally I purchased and ran Pro Street transmission in stock trim with 4.12 RP and ran it for two seasons. It runs very good in town and countryside driving I´m under impression it kills my 1/4 mile times a lot.

What ratios would you suggest for my 2276 with 86C cam, 11:1 CR , 48DRLAs, 1 3/4 CPS python. I run a full metal VW Thing on swingaxles, good rubber mounts, CSP trapese system, no problem with wheel hop whatsoever. Berg shifter, new shifter bar bushing, Dieken Copper disc and Stage 1 KEP plate. The car still weight around 2000 lbs with me. I´m ready to run ERCOs with 215/65 m+H DOTs on the rear.


I´m ready to run close ratios if it still allows me to get to races at reasonable speed (no autobahns). Please design me a gerabox of your opinion.

Thanks!

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dragvw2180
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Posts: 304



« Reply #99 on: June 10, 2013, 16:00:37 pm »

Since your gear box has held up so well why not go back to the same builder and ask their opinion ? Sam , the owner of " Rancho " and I have been friends and a customer since the early 80's and his advice has always been excellent plus he is absolutely honest .  There are alot of competent and honest builders out there but how many have built the quantity that Sam and his " companies " have , with that comes experiance of what combinations work . I will give you an example, I am building a new "Street Car " that will have 366 rwhp . I will be using my old race transmission and no it will not be perfect for the street but it is a compromise just like your car , something I can drive to town and yet race . Will I want to drive it 70 mph for an extended period of time, hahhahaahh NO , but I will drive it to local shows with my wife and to get the occaisional meal . Would this be the gearing Sam would advise me to use  , No,  he would probably laugh at me for even thinking of it. I will be using 26 ' tires and a 3.88 r/p with a 1.14 4th  . I look forward to all the responses you get with your post. Mike McCarthy
P.S. this is an old vid of the engine and transmission I will be using in my street car, the red one,
<a href="http://www.youtube.com/v/FJZrEFElU24" target="_blank">http://www.youtube.com/v/FJZrEFElU24</a>
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pupjoint
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« Reply #100 on: June 11, 2013, 04:41:39 am »

Hi again after 3 years:-)

Finally I purchased and ran Pro Street transmission in stock trim with 4.12 RP and ran it for two seasons. It runs very good in town and countryside driving I´m under impression it kills my 1/4 mile times a lot.

What ratios would you suggest for my 2276 with 86C cam, 11:1 CR , 48DRLAs, 1 3/4 CPS python. I run a full metal VW Thing on swingaxles, good rubber mounts, CSP trapese system, no problem with wheel hop whatsoever. Berg shifter, new shifter bar bushing, Dieken Copper disc and Stage 1 KEP plate. The car still weight around 2000 lbs with me. I´m ready to run ERCOs with 215/65 m+H DOTs on the rear.


I´m ready to run close ratios if it still allows me to get to races at reasonable speed (no autobahns). Please design me a gerabox of your opinion.

Thanks!


what ratio is your current pro street gearbox with 4.12RP? stock? any other mods? super diff? LSD?

« Last Edit: June 11, 2013, 04:51:15 am by pupjoint » Logged
pupjoint
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Posts: 722


« Reply #101 on: June 11, 2013, 05:34:18 am »

check out some of the pics posted by Paul Guard

http://www.thesamba.com/vw/forum/album_page.php?pic_id=1023716

http://www.thesamba.com/vw/forum/album_page.php?pic_id=985963
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Jesse/DVK
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Posts: 817


'64 2176cc


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« Reply #102 on: June 11, 2013, 08:33:56 am »

I have a 4.12 gearbox with 3.78, 2.06, 1.44 and 1.04 gears. Very happy with it and works perfect with my webcam 86c in my beetle. (2176cc 188 hp).
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Der Vollgas Kreuzers
181
Hero Member
*****
Posts: 632


« Reply #103 on: June 11, 2013, 10:14:29 am »

Hi again after 3 years:-)

Finally I purchased and ran Pro Street transmission in stock trim with 4.12 RP and ran it for two seasons. It runs very good in town and countryside driving I´m under impression it kills my 1/4 mile times a lot.

What ratios would you suggest for my 2276 with 86C cam, 11:1 CR , 48DRLAs, 1 3/4 CPS python. I run a full metal VW Thing on swingaxles, good rubber mounts, CSP trapese system, no problem with wheel hop whatsoever. Berg shifter, new shifter bar bushing, Dieken Copper disc and Stage 1 KEP plate. The car still weight around 2000 lbs with me. I´m ready to run ERCOs with 215/65 m+H DOTs on the rear.


I´m ready to run close ratios if it still allows me to get to races at reasonable speed (no autobahns). Please design me a gerabox of your opinion.

Thanks!


what ratio is your current pro street gearbox with 4.12RP? stock? any other mods? super diff? LSD?



hi pupjoint, yes, stock trim 4.12 RP,
1st Gear: 3,78
2nd Gear: 2,06
3rd Gear: 1,26
4th Gear: 0,89

super diff with 4 spider gears.

Thank you! 
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