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| | |-+  Building Boost on a stationary bug.
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Author Topic: Building Boost on a stationary bug.  (Read 3929 times)
Garrick Clark
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« on: April 30, 2017, 11:47:13 am »

Hi guys.
So here it is. How do I build boost for fast starts. I've seen the turbo bugs building boost at the strip, with the pops and bangs etc. How is this done.
My turbo is matched to my engine size so should spool up quick with the right method.

Regards Garrick.

P.s.  There's a few quick N/A bugs round my way, I need to be able to match them at the  traffic light take offs.
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Air cooled Engine builder
richie
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Posts: 5620



« Reply #1 on: April 30, 2017, 16:59:20 pm »

It will be hard on rest of running gear if you do that Shocked, how strong is it?  Simple way is rpm 2 step switch wired to activate with handbrake or clutch pedal/arm, when switch is activated it tells MSD/ECU etc to activate pre set rpm & pull some timing. what do you have for ignition control ?

cheers Richie
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
Erlend / bug66
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Posts: 955

SCC Event


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« Reply #2 on: April 30, 2017, 17:08:08 pm »

What Richie said.

I have my anti lag / 2 step on the line lock button.

2 bar / 30 psi boost really fast!  Smiley
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Garrick Clark
Sr. Member
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Posts: 499


« Reply #3 on: April 30, 2017, 20:07:41 pm »

Well, I'm a turbo novice to be fair. So talking about 2 steps is all new to me  Embarrassed
 I only have an unlocked 003 dizzy with petronix 3 module and matching coil.
10* idle 28* total.
Water INJ , no pinging,95 octane fuel.
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Air cooled Engine builder
richie
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Posts: 5620



« Reply #4 on: April 30, 2017, 20:15:23 pm »

Ok most aftermarket ignitions like MSD have a high end rev limiter, a 2 step is a second limiter you can set to your required rpm that will hold the engine at that rpm for launching, on a N/A car this is all you need to set, but on a turbo car retarding ignition while on this rpm limiter so it burns more in exhaust spools the turbo really quickly and builds boost with no load on it, some set ups add fuel while doing this as well.
I don't think with what you have currently there is a way to do this though

cheers Richie
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
Garrick Clark
Sr. Member
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Posts: 499


« Reply #5 on: May 01, 2017, 08:14:38 am »

AH right. So in your opinion what would be some good ways to bring my igniton out of the 90's.
 
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Air cooled Engine builder
richie
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Posts: 5620



« Reply #6 on: May 01, 2017, 08:48:09 am »

Well really an ECU would be way forward Grin

But some sort of ignition box like msd 6AL2, doesn't have to be that brand but something that has 2 rpm limiters and a retard function

cheers Richie
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
Garrick Clark
Sr. Member
****
Posts: 499


« Reply #7 on: May 01, 2017, 16:08:40 pm »

Ok. I'll look at the msd 6AL2.
Thanks Richie.
This time next year I'll be doing LOW 15'S lol
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Air cooled Engine builder
Garrick Clark
Sr. Member
****
Posts: 499


« Reply #8 on: May 07, 2017, 09:40:36 am »

Yesterday I changed my actuator for a stronger one. Got loads of boost and the engine lost 3 and 4 cylinder. So me thinking the worst I stripped it down. found nothing apart from lots of fuel in the cylinders. I think that the extra boost is producing extra fuel  PSI and must have overcome the carb and flooded it.

O well. I can now fit the uprated clutch now its out.
« Last Edit: May 07, 2017, 15:45:17 pm by GARRICK.CLARK » Logged

Air cooled Engine builder
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