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SR20DET'd RX7 1/4 mile results

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Old Feb 23, 2003 | 08:55 PM
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SR20DET'd RX7 1/4 mile results

60' 1.933
1/8 7.605
MPH 97.64
1/4 11.721
MPH 118.34

Now, this was the 1st pass and best of the day. The car was breaking up at the top of 3rd and in 4th gear and so he backed out of the run. Later runs only got worse. As it turns out, the fuel rail bolts had backed out causing the #1 injector to intermitently pop loose and spew fuel. We also think there may be some type of ingition problem as the breaking up only happens above 20psi of boost. You can see the car almost went 98mph in the 1/8th. The launch was crap because the new tires were not warmed up enough. Anyway, 11 seconds on a $400 long block.
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Old Feb 23, 2003 | 09:02 PM
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hot damn!
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Old Feb 23, 2003 | 09:15 PM
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Congrats man!
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Old Feb 23, 2003 | 09:22 PM
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Good times..good run. Nice work!! :thumbup:

Can he go any faster on that block? Like 10's? Or is he maxxed out?
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Old Feb 23, 2003 | 10:25 PM
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that's swt man! lucky bastard
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Old Feb 23, 2003 | 10:32 PM
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you deserve that after all the work

good job that is really fast I can't wait to see everything totally fixed you think it can get into the 10s!??
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Old Feb 23, 2003 | 10:35 PM
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nice work. Honestly did not think anything special would come out of that engine in an FD
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Old Feb 24, 2003 | 01:09 AM
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Nice work! That seems like a pretty successful conversion to me.

-Max
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Old Feb 24, 2003 | 01:29 AM
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wow
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Old Feb 24, 2003 | 01:31 AM
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impressive!
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Old Feb 24, 2003 | 02:52 AM
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forgive my ignorance, but what is a SR20DET? Is that a 240 engine or something?
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Old Feb 24, 2003 | 03:01 AM
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nice work!
should see low 11s hopefully with the car fully sorted.
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Old Feb 24, 2003 | 04:54 AM
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Originally posted by rotary>piston
forgive my ignorance, but what is a SR20DET? Is that a 240 engine or something?
And what a 240 it is! Stroke that bad boy to a 2.5L and you got yourself a party!
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Old Feb 24, 2003 | 07:21 AM
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I am trying to get it all sorted out and take it to Gainesville this week, the block will stay stock but in addition to fixing the few bugs i am going try to get some cams before i go we will see... still trying to reach my goal of 10.99 on a stock block.... Also any of you guys that run et streets what tire psi are you running and any hints on rear suspension setups would be greatly appreciated.... Oh also I was thrilled because the weight of the car is 2635 with about 8 gallons of gas

Shaun
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Old Feb 24, 2003 | 08:02 AM
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I'd try about 20 psi and drop it down a little if needed
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Old Feb 24, 2003 | 09:23 AM
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Originally posted by rotary>piston
forgive my ignorance, but what is a SR20DET? Is that a 240 engine or something?
it is a Jap spec "Silvia" motor... which is the 240 in japan, also is turbocharged stock...
-Keith
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Old Feb 24, 2003 | 01:03 PM
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Originally posted by Silex
And what a 240 it is! Stroke that bad boy to a 2.5L and you got yourself a party!
The motor is a 2 liter motor it is not the 2.4 that we have here in the US.
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Old Feb 24, 2003 | 01:43 PM
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Man do I gotta whip out the Jun Sports Silvia article? It was an S15 where the injectors were bored (stroked) to handle more flow. Hence at the end of it all, it was pushing 2.5L instead of 2.0L. Of course, the damn stroke kits cost damn near $10K, but who am I to complain .
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Old Feb 24, 2003 | 04:05 PM
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tnt are you comming to race at the gainesville raceway? Let me know when your going to be out there I want to see this beast.

-Todd
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Old Feb 24, 2003 | 04:29 PM
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isn't boring enlarging the cylinder bore and stroking installing a longer crankshaft? (nothing to do with injectors)
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Old Feb 24, 2003 | 04:36 PM
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wow...

nice!
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Old Feb 24, 2003 | 05:47 PM
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Originally posted by kundo
The motor is a 2 liter motor it is not the 2.4 that we have here in the US.
It doesn't mean that it still can't be stroked and bored....
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Old Feb 24, 2003 | 06:07 PM
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isn't boring enlarging the cylinder bore and stroking installing a longer crankshaft? (nothing to do with injectors)

Yes you can bore injectors. 1300cc secondaries for the FD are typically bored 850s. Can't stroke an injector though
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Old Feb 24, 2003 | 06:24 PM
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Originally posted by 94RXMAGEE
tnt are you comming to race at the gainesville raceway? Let me know when your going to be out there I want to see this beast.

-Todd
I am trying to make it, we are really backed up here at the shop, but i will know for sure on wednesday

Shaun
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Old Feb 24, 2003 | 06:27 PM
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Originally posted by Marshall
Yes you can bore injectors. 1300cc secondaries for the FD are typically bored 850s. Can't stroke an injector though
I think that was the point, injector size has nothing to do with displacement.
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