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> Tubeframe 914, Started work on my rear custom uprights
Randal
post Apr 26 2011, 05:33 PM
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QUOTE(Hontec @ Apr 26 2011, 02:57 PM) *

QUOTE(trojanhorsepower @ Apr 26 2011, 09:35 PM) *

I am really glad to hear that you are thinking along these lines. Like you said there are lots of rusted out ones to cut up, and after all you have that magnificent jig so....



I think it would grace the chassis all the more...........and it would give me a chance to use the jig more than once (IMG:style_emoticons/default/biggrin.gif)



Randall - glad to hear your decisoin. Here is a suggestion for you: Put in a 3.6. You will never be disappointed and it will go like a greased monkey.

I don't know what they are going for now, but probably 8-10K and with the dollar taking a dip a good investment for you.

And you can take it to the track, drive it wide open all day and all you have to do is change the oil.

My racing partner, Bill Pickering bought a 911 race car with a 3.6 and we autox and tracked that car. It was so much fun and so little maintenance.

Just my .02cents.
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Hontec
post Apr 27 2011, 01:32 AM
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QUOTE(Randal @ Apr 27 2011, 01:33 AM) *



Randall - glad to hear your decisoin. Here is a suggestion for you: Put in a 3.6. You will never be disappointed and it will go like a greased monkey.

I don't know what they are going for now, but probably 8-10K and with the dollar taking a dip a good investment for you.

And you can take it to the track, drive it wide open all day and all you have to do is change the oil.

My racing partner, Bill Pickering bought a 911 race car with a 3.6 and we autox and tracked that car. It was so much fun and so little maintenance.

Just my .02cents.



Randal


You're absolutely right, The 3,6 from the 89-93 964 is a wonderful engine..... what also would be a great option for this car imho is a 3,2 with PMO manifolds (or jenvey) and go EFI with a crankfire distributorless ignition... ....No troubles whatsoever.


Randall (IMG:style_emoticons/default/biggrin.gif)
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Hontec
post Apr 27 2011, 06:16 AM
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Took some pictures of the old Velios 914-6 mount I bought last week.


(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1303906588.1.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1303906588.2.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1303906589.3.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1303906589.4.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1303906589.5.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i854.photobucket.com-12210-1303906589.6.jpg)




Also ordered one of the last J-West version 1 shift rod kits, better have one on the shelf..
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Randal
post Apr 27 2011, 06:24 AM
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QUOTE(Hontec @ Apr 27 2011, 12:32 AM) *

QUOTE(Randal @ Apr 27 2011, 01:33 AM) *



Randall - glad to hear your decisoin. Here is a suggestion for you: Put in a 3.6. You will never be disappointed and it will go like a greased monkey.

I don't know what they are going for now, but probably 8-10K and with the dollar taking a dip a good investment for you.

And you can take it to the track, drive it wide open all day and all you have to do is change the oil.

My racing partner, Bill Pickering bought a 911 race car with a 3.6 and we autox and tracked that car. It was so much fun and so little maintenance.

Just my .02cents.



Randal


You're absolutely right, The 3,6 from the 89-93 964 is a wonderful engine..... what also would be a great option for this car imho is a 3,2 with PMO manifolds (or jenvey) and go EFI with a crankfire distributorless ignition... ....No troubles whatsoever.


Randall (IMG:style_emoticons/default/biggrin.gif)



I think one of the tricks with a 3.6 is swapping the manifold for a 3.2 which flows better. Not a nose bleed either.

Having a car with "No troubles whatsoever" is a good thing.

But you've had a few race cars already so your up on that learning curve.
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Hontec
post Apr 27 2011, 07:13 AM
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QUOTE(Randal @ Apr 27 2011, 02:24 PM) *

I think one of the tricks with a 3.6 is swapping the manifold for a 3.2 which flows better. Not a nose bleed either.

Having a car with "No troubles whatsoever" is a good thing.

But you've had a few race cars already so your up on that learning curve.


ok, good to know.
One thing I would like to stick to on the 914 is something that looks like Webers, In my opinion the Webers are ultracool, however they need so much constant attention and I plan on taking the car on holidays to Italy, which means crossing the alps and I've seen the troubles with carbs and Altitude differences......

So I'm going to settle for ITB's with a map sensor and cold start enrichment.... (IMG:style_emoticons/default/smile.gif) A nice crank trigger and a good Bosch fuel pump....it will give me less sleepless nights ( I hope (IMG:style_emoticons/default/idea.gif) )
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FourBlades
post Apr 27 2011, 08:01 AM
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Are you planning to plumb a common point to read your manifold air pressure?

I always thought ITBs and MAP do not work well together due to noisy signal
at low RPM from all the intake pulses. Don't most people just use alpha N with
ITBs?

John
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Hontec
post Apr 27 2011, 09:10 AM
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QUOTE(FourBlades @ Apr 27 2011, 04:01 PM) *

Are you planning to plumb a common point to read your manifold air pressure?

I always thought ITBs and MAP do not work well together due to noisy signal
at low RPM from all the intake pulses. Don't most people just use alpha N with
ITBs?

John


Yes,use a vacuum manifold and base the fuel map on a combination of map and tps, that does the trick.
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Jeroen
post Apr 27 2011, 09:39 AM
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have you checked out the KMS ITBs yet?
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Hontec
post Apr 27 2011, 09:56 AM
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QUOTE(Jeroen @ Apr 27 2011, 05:39 PM) *

have you checked out the KMS ITBs yet?



No, not for the 911, I've worked with the older roller throttle bodies, they were very nice.

The only thing that holds me back from Kronenburg is the people themselves, I've dealt with them in the past when I helped Biesheuvel set up the Chevrolet Kalos challenge, they supplied the wiring harnesses and engines and it was no fun working with them........no way near to fun....
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Jeroen
post Apr 27 2011, 10:05 AM
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I have no experience with Kronenburg myself, but thought the ITBs are reasonably priced (compared to other brands)
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Hontec
post Apr 27 2011, 10:29 AM
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QUOTE(Jeroen @ Apr 27 2011, 06:05 PM) *

I have no experience with Kronenburg myself, but thought the ITBs are reasonably priced (compared to other brands)


true, they are fairly cheap, I wonder if they fit the original manifolds, can't find that.

The Jenveys include a new manifold and are about 300 euro's more expensive for a complete kit( but they do include manifolds and linkage)

If the kms would fit directly to the head, that would be so much shorter ( however for mixture/evaporation not entirely beneficial, also depends on max rpm etc)


The TWM itb's have a nice option, an extra set of injectors over the horns, like the F1 engines


(IMG:http://www.914world.com/bbs2/uploads_offsite/www.twminduction.com-12210-1303921752.1.jpg)


We once did this on a honda B16 1,6L engine and switched/transitioned at 6000rpm from the regular injectors to the ones in the horns: it gave us an extra 37HP in the 6000~9500 rpm range............would make considerably more on larger displacement.... fit the extra set of injectors in the filter housing, need an expensive stand-alone though to drive 12 injectors.... (motec)
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Britain Smith
post Apr 27 2011, 10:35 AM
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You should definitely check out some of the fuel injection systems from Rothsport

http://rothsport.com/Products/Engine/Fuel-.../FI-Systems.htm

-Britain
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Hontec
post Apr 27 2011, 10:47 AM
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QUOTE(Britain Smith @ Apr 27 2011, 06:35 PM) *

You should definitely check out some of the fuel injection systems from Rothsport

http://rothsport.com/Products/Engine/Fuel-.../FI-Systems.htm

-Britain



Damn, the low rise system is what I had in mind, thanks Britain! I found my system!!
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Britain Smith
post Apr 27 2011, 10:57 AM
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Jeff over at Rothsport builds some awesome engines. I really like their slidevalve set-up. Give him a ring, tell him that Britain sent ya.

(IMG:http://www.914world.com/bbs2/uploads_offsite/rothsport.com-364-1303923469.1.jpg)

-Britain
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Jeroen
post Apr 27 2011, 11:01 AM
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Brit, do you know pricing on the Rothsport kits?
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BKLA
post Apr 27 2011, 11:26 AM
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low rise, complete... about $8k USD...

I looked into it for my 2.7 RS spec motor. Great system, beautifully made.

Just a wee bit out of my current budget!

edit - BTW: that price was to have Rothsport install. I dont know if they have a "kit" to install.
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Hontec
post Apr 27 2011, 12:13 PM
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QUOTE(BKLA @ Apr 27 2011, 07:26 PM) *

low rise, complete... about $8k USD...

I looked into it for my 2.7 RS spec motor. Great system, beautifully made.

Just a wee bit out of my current budget!



that is quite a pricetag, by the way: the throttlebodies/ units themselves, look exactly like Jenveys.....
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BKLA
post Apr 27 2011, 12:19 PM
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take a look at the PMO throttle bodies...

http://www.pmocarb.com/products.htm
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Hontec
post Apr 27 2011, 12:45 PM
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QUOTE(BKLA @ Apr 27 2011, 08:19 PM) *

take a look at the PMO throttle bodies...

http://www.pmocarb.com/products.htm


Yep, seen those, very nice as well......quite a different pricetag...
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Hontec
post Apr 27 2011, 01:32 PM
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Now we're talking:



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