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My 20B racecar thread

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Old 10-29-08 | 07:14 PM
  #76  
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Originally Posted by ReZ311
If you are interested in a Titanium manifold, let me know.
Give you $300 for it?
Old 10-30-08 | 12:25 PM
  #77  
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lets hear it run!! very nice!!!! great turn around!
Old 10-30-08 | 01:13 PM
  #78  
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Originally Posted by thetech
Give you $300 for it?

Haha. Try adding a zero and then doubling it. I'm having an aircraft mechanic weld me up a Ti manifold for the 20B. Light, strong, and can withstand the heat for many years.
Old 10-30-08 | 04:11 PM
  #79  
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Wow, your car is what mine would become if I were to win the lotto.

What rear wing and mounts are those?
Old 10-30-08 | 04:15 PM
  #80  
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Originally Posted by ReZ311
Haha. Try adding a zero and then doubling it. I'm having an aircraft mechanic weld me up a Ti manifold for the 20B. Light, strong, and can withstand the heat for many years.
why not inconel? Inconel exhaust manifolds for f1 engines are almost soda can thickness.
Old 10-30-08 | 06:00 PM
  #81  
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Inconel (real quality inconel) is probably even more expensive than titanium.
Old 10-31-08 | 01:46 PM
  #82  
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Originally Posted by ReZ311
Haha. Try adding a zero and then doubling it. I'm having an aircraft mechanic weld me up a Ti manifold for the 20B. Light, strong, and can withstand the heat for many years.
Wow. I guess I'll just buy 20 HKS cast manifolds instead
Old 10-31-08 | 04:31 PM
  #83  
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How are you looking for next weekend? I will probably run my friends EVO, real slim chance my car will be running by next Friday.
Old 10-31-08 | 04:34 PM
  #84  
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Originally Posted by GSLSE-YA
How are you looking for next weekend? I will probably run my friends EVO, real slim chance my car will be running by next Friday.
Slim chance, firing up the car tomorrow and getting tuned on Thursday...I have signed up for SpeedVentures @ California Speedway ROVAL Nov 21-23 (all 3 days) which I figure will be the first serious test of the car. You should come!
Old 11-03-08 | 03:25 PM
  #85  
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do you have any more pictures of the FC2000 bumper with your wide fenders?
it looked pretty damn good in that one pic.
Old 11-04-08 | 12:53 PM
  #86  
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Success! Fired up like a charm this weekend. Well kind of like a charm, I couldn't get it to fire until I put in a brand new set of plugs (doh) then it was perfect. Unfortunately a design failure on my part means that I need to swap the S4 waterpump housing on instead of the S5 I am using right now - the S4 has the radiator cap on top of the neck which is ideal for my v-mount setup. Right now it is impossible for me to bleed air out of the system because the radiator and cap are at a pretty low point.

Also when I swapped the main pulley some weeks ago I forgot to put the engine on its back, so I thought the bearing at the front of the e-shaft may have dropped. I decided to pull the front cover to check, luckily it was still in place and in perfect condition. I am going for tuning on Saturday assuming the new waterpump housing/waterpump/tstat/pulley arrives as it is supposed to on Friday!

The magical bearing:

Old 11-04-08 | 03:57 PM
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You can put the S4 neck on the S5 front housing. It will be missing a bolt but it held up just fine on my car for quite a long time.
Old 11-04-08 | 04:08 PM
  #88  
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Originally Posted by Gene
You can put the S4 neck on the S5 front housing. It will be missing a bolt but it held up just fine on my car for quite a long time.
****. Already ordered the damn thing and took the housing off (had to anyway I guess for the front cover). Thanks anyway, will bear it in mind for the future. Is there any flow difference between the S4 and S5 waterpumps?
Old 11-04-08 | 11:05 PM
  #89  
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No idea.
Old 11-05-08 | 12:04 AM
  #90  
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Originally Posted by thetech
****. Already ordered the damn thing and took the housing off (had to anyway I guess for the front cover). Thanks anyway, will bear it in mind for the future. Is there any flow difference between the S4 and S5 waterpumps?
S4 flows a bit more I am loving the car, keep up the good work on a amazing machine!
Old 11-07-08 | 01:47 AM
  #91  
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amazing. Sounds like a true race car in the vid. Yeah I did notice the fuel starvation on low rpm . This car wins!
Old 01-05-09 | 02:25 PM
  #92  
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Good Christ.

Nice work...
Old 01-05-09 | 03:26 PM
  #93  
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Thanks!

I haven't updated in a while so here goes...

I've taken the car out a couple of times, and already rebuilt the engine once We made 405rwhp @ 11psi last time on the dyno which is right on the ST1 class limit. I figure at around 20psi it should break 500 which is what I am hoping for this coming weekend.

I am still suffering from a fuel starvation/hesitation thing which, thanks to everyones advice, I think is either due to my having the fuel rails in series rather than parallel or tuning, or both. I'm converting the fuel lines to parallel tonight and will be on the dyno again on sat to try and recreate/cure the problem. It's possible that the primaries are starving the secondaries of fuel (thanks TrentO) which is what is causing the hesitation.

Next track event is on the 17th so hopefully I will have it all cured by then!
Old 01-05-09 | 09:10 PM
  #94  
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Hopefully everything goes well.
Old 07-25-09 | 07:10 PM
  #95  
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I love this project, how is it coming along?
Old 07-27-09 | 09:55 AM
  #96  
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https://www.rx7club.com/2nd-generation-rx-7-1986-1992-parts-194/fs-fc-racecar-partout-lots-premium-parts-839485/
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