Fiat Strada 130TC Rally prep.

Non-engine, eg: aerodynamics, gearboxes, brakes, suspension
Biancorally
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Re: Fiat Strada 130TC Rally prep.

Post by Biancorally » Sun Jul 17, 2011 3:29 pm

Hi,

you are absolutely right, the catalyst can not work properly at this point. Why I put it there? Put the catalyst as far as possible in the exhaust system absorbs less power. To my knowledge there is not really a specific location by Regulation to position the catalyst.

The policy of the catalysts on race cars is still a mystery to me.

Regards

Daniel
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TR-Spider
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Re: Fiat Strada 130TC Rally prep.

Post by TR-Spider » Sun Jul 17, 2011 6:31 pm

I am also amazed by these regulations, which are the same for the "Youngtimer" '76-'90 class.
On the other hand, when watching these cars at races I always see the catalysts glow orange, which means they are pretty much at working temperature.
Normally one does not much "cold starting" in a race car (which is why they are placed close to the engine at road cars).
Additionally it is much easier to exchange such a catalyst at the exit, so I think we can live with that.

Thomas
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Biancorally
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Re: Fiat Strada 130TC Rally prep.

Post by Biancorally » Sun Jul 17, 2011 10:23 pm

Hi,

Let me introduce the work done on weekend.
Attachments
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rear suspension, with bracket to screw brake caliper
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new rear bearing kit with heat treated wheel stud
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Brake cleaner to cleaning threads
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51.JPG
assembly with Loctite
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note bearing kit left, with ABS rotor, at right standard
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the ABS rotor will enable me to subsequently place a speed sensor
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wheel bearings tightened with specified torque
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nuts secured
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this is a disc brake conversion (Strada originally fitted with drum brakes at the rear, ever)
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Guy Croft
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Re: Fiat Strada 130TC Rally prep.

Post by Guy Croft » Mon Jul 18, 2011 9:21 am

Thanks for your kind comments Daniel, I am very pleased this site is showcasing your work. I admire the care you have taken to produce exceptional photographs from which much can be learned and the elegant text that accompanies it all, esp given that English is not your native language.

One thing - at a glance - that bothers me a bit is the aval space for a ducted intake system - see below - and you must give consideration to that. You certainly musn't induct at rad exit air temp. Shorter trumpets and radiator shifted forward an inch or so will help. You need 1" between the rampipes and any surrounding airbox architecture.

G
Attachments
Daniel_130TC.JPG
Daniel_130TC.JPG (67.03 KiB) Viewed 3356 times

Biancorally
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Re: Fiat Strada 130TC Rally prep.

Post by Biancorally » Mon Jul 18, 2011 11:09 am

Hi Guy,

thank you for your comments.

I do not intend to drive with open pipe rams. I really respect what you have already noted several times, about it, to other members, airbox is also part of the project.
I am always glad to hear your opinion.

Regards

Daniel
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Biancorally
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Re: Fiat Strada 130TC Rally prep.

Post by Biancorally » Sun Jan 15, 2012 11:49 pm

Hi,
some update, airbox, door panel and larger brake disc with twin piston caliper.


Two variants in terms of air intake.
The first variant is to place the air filter directly on the front of the box.
The second is to place a kind of extension to avoid taking heat from the radiator.
Let's say that the alternative number two is probably the best, the problem is how much the engine is swung during acceleration and braking? The junctions between box and extension cord are door seals which are very flexible.
Attachments
60.JPG
aluminum airbox plate
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61.JPG
airbox
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63.JPG
airbox, door seals for extension cord
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64.JPG
airbox extension
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68.JPG
Interior trim template
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69.JPG
right side
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70.JPG
left side
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71.JPG
LH front carbon door panel
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RH front carbon door panel
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73.jpg
competition brake disc with alu. bowl
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74.jpg
assembled, disc and caliper
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75.jpg
caliper clearance
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77.jpg
seen from the inside of the rim
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mitch strada
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Re: Fiat Strada 130TC Rally prep.

Post by mitch strada » Mon Jan 16, 2012 4:08 pm

Great update.

Are you using solid / very stiff engine mounts as that airbox is very close to the front panel - or is it screwed to the front panel?
May cause problems as you say when the engine moves.

Perhaps you can consider removing the front panel completely and making a whole new arrangement from tubular steel - a spaceframe type arrangement
that will give you more strength and space as you can make it "bolt on" if you wish and also attach mounting points where required - if you wanted to you could remove the inner wings and spaceframe the whole front end - if you wanted to that is and if regs allow. . . .

Can you tell me more about / post a photo of the front wishbone / suspension arrangement - it looks great.

Thanks

Abarthnorway - Remi L
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Re: Fiat Strada 130TC Rally prep.

Post by Abarthnorway - Remi L » Tue Jan 17, 2012 12:06 am

Hi Daniel!


Extremely nice project You have going there!

I especially like the airbox arrangement - lovely.

I am following Your thread closely when I have time.

Good luck to You - nice to see someone using the 130 TC for what it was intended:-)


Best regards

Remi Lovhoiden
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Biancorally
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Re: Fiat Strada 130TC Rally prep.

Post by Biancorally » Tue Jan 17, 2012 12:14 am

mitch strada wrote:Great update.

Are you using solid / very stiff engine mounts as that airbox is very close to the front panel - or is it screwed to the front panel?
May cause problems as you say when the engine moves.

Perhaps you can consider removing the front panel completely and making a whole new arrangement from tubular steel - a spaceframe type arrangement
that will give you more strength and space as you can make it "bolt on" if you wish and also attach mounting points where required - if you wanted to you could remove the inner wings and spaceframe the whole front end - if you wanted to that is and if regs allow. . . .

Can you tell me more about / post a photo of the front wishbone / suspension arrangement - it looks great.

Thanks

Hi Mitch,
yes of course the engine mount is very stiff, perhaps even too much, as you can see from the pictures below.

A tubular construction of the front panel, so maybe next time, a lot of work to do this.
The air box is screwed to the TB's, the extension is screwed to the front panel. I build the air box as large as possible to get an inch of freedom around the ram pipes as Guy preconise.

A small update at the front brakes:
-Brake hose done
-Invert the bleed screw
-bleed the brake system

The front wishbone is made ​​of steel tube and uniball joint.
The rear is also on uniball, stock arms.
Attachments
78.jpg
Engine mounts rubber bearings are from suspension bushings
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Brake hose
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Wishbone on uniball
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Uniball on push rod, (stock rubber pad removed)
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wishbone rear view
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Shim under the steering control arm to avoid bump steer
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84.jpg
Damper
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85.jpg
Uniball Top Mount
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86.jpg
Rear link on Uniball
86.jpg (82.78 KiB) Viewed 3329 times
Last edited by Biancorally on Tue Jan 17, 2012 7:59 pm, edited 1 time in total.
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Biancorally
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Re: Fiat Strada 130TC Rally prep.

Post by Biancorally » Tue Jan 17, 2012 12:26 am

Abarthnorway - Remi L wrote:Hi Daniel!


Extremely nice project You have going there!

I especially like the airbox arrangement - lovely.

I am following Your thread closely when I have time.

Good luck to You - nice to see someone using the 130 TC for what it was intended:-)


Best regards

Remi Lovhoiden
Hi Remi,

thank you very much.

Regards

Daniel
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mitch strada
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Re: Fiat Strada 130TC Rally prep.

Post by mitch strada » Tue Jan 17, 2012 10:52 am

Thanks for the photos very nice work indeed.

I can t see the front antiroll bar - have you removed it?

Also are you converting it to hydraulic clutch to replace the cable?

Thanks

Guy Croft
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Re: Fiat Strada 130TC Rally prep.

Post by Guy Croft » Tue Jan 17, 2012 12:31 pm

Possibly insufficient engagement into the nylon here?

Whether yours is OK or not I post this for general info because frequently I see cases where there is not enough penetration to prevent the nut working loose under constant vibration/applied load. Most male fasteners have a region of 45 deg taper at their end which must be allowed for - the nylon must fully engage on full-form threads.

G
Attachments
86.jpg
86.jpg (43.45 KiB) Viewed 3260 times
tensioner.jpg
here is a photo of a 16v 124 sent to me - did not like this at all, especially in that critical location right next to the cambelt
tensioner.jpg (403.92 KiB) Viewed 3260 times

Biancorally
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Re: Fiat Strada 130TC Rally prep.

Post by Biancorally » Tue Jan 17, 2012 8:07 pm

Guy Croft wrote:Possibly insufficient engagement into the nylon here?

Whether yours is OK or not I post this for general info because frequently I see cases where there is not enough penetration to prevent the nut working loose under constant vibration/applied load. Most male fasteners have a region of 45 deg taper at their end which must be allowed for - the nylon must fully engage on full-form threads.

G

Guy, you're absolutely right I have unscrew the nut. Indeed, the nylon is just half marked, you do not miss anything, I love your meticulousness. Thank you for these precisions.

Regards

Daniel
Attachments
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Biancorally
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Re: Fiat Strada 130TC Rally prep.

Post by Biancorally » Tue Jan 17, 2012 8:37 pm

mitch strada wrote:Thanks for the photos very nice work indeed.

I can t see the front antiroll bar - have you removed it?

Also are you converting it to hydraulic clutch to replace the cable?

Thanks

Mitch,

i do not use any stabilizer bar for now. If I really need a stabilizer bar, then only on the rear axle.

Yes, i convert it to hydraulic clutch. The clutch diameter is 184 mm instead of 215mm stock.
I hope the clutch system survive. The bearing is based on an aluminum plate of 10mm.
Statice it disengages well.
Dynamically not tried yet.


Regards

Daniel
Attachments
89.JPG
hydraulic clutch
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90.jpg
AP clutch
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91.jpg
Light flywheel
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mitch strada
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Re: Fiat Strada 130TC Rally prep.

Post by mitch strada » Sun Jan 22, 2012 4:51 pm

Thanks for the update, i look forward to your next report.

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