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Old Jan 21, 2004 | 11:07 PM
  #41  
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Originally Posted by WS6FirebirdTA00
same here i have an ls1 intake still and im tryin to find out what a full bolt on gets with the lsx. we might put out some big numbers being bolt on only now
It'd be nice to get true dauls and a new intake setup along with my current mods and have a car that puts down ~380rwhp on an internally stock warrantied engine.
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Old Jan 22, 2004 | 01:08 AM
  #42  
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Originally Posted by FAST LS1
I'm surprised no one's coming out with a 90-95mm MAF and lid?
I'll wait till someone dyno's a full bolt-on internally stock LS1 with the 90mm LSX intake before I buy one. I'm still on the LS1 intake so it should be a huge improvement no matter what
Will a lid/MAF that big (90-95mm) be able to still fit under a stock hood without hitting? I'm sure it still would.

And wouldn't a 90mm LSX along with a 90mm TB (and 90mm lid/MAF as well I guess) be too much for a stock internal motor, even one with good headers/exhaust?
And I wonder if adding the big stuff up top would also justify using 1 7/8 headers instead of 1 3/4 as well (talking 346 of course).
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Old Jan 22, 2004 | 01:31 AM
  #43  
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Originally Posted by LS1LT1
Will a lid/MAF that big (90-95mm) be able to still fit under a stock hood without hitting? I'm sure it still would.
I'd say it would fit since they already make an 85mm, but if not they could make the lid exit more oval for clearance.

Originally Posted by LS1LT1
And wouldn't a 90mm LSX along with a 90mm TB (and 90mm lid/MAF as well I guess) be too much for a stock internal motor, even one with good headers/exhaust?
The LS2 in the new C6 is only suppose to be 400bhp and it comes stock with a 90mm intake track and TB. A bolt on internally stock LS1 with this new intake should be making over 400bhp so I see no reason why it would be too large.
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Old Jan 22, 2004 | 01:39 AM
  #44  
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Originally Posted by FAST LS1
I'd say it would fit since they already make an 85mm, but if not they could make the lid exit more oval for clearance.
True, going oval could fix that if it didn't clear. But would going from oval at the lid/MAF to round at the TB/intake cause any kind of flow issues if that were the case?


Originally Posted by FAST LS1
The LS2 in the new C6 is only suppose to be 400bhp and it comes stock with a 90mm intake track and TB. A bolt on internally stock LS1 with this new intake should be making over 400bhp so I see no reason why it would be too large.
The C6 is bigger of course (roughly 366ci versus 346ci) but still, good point...that makes me very happy to hear.
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Old Jan 22, 2004 | 05:21 AM
  #45  
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My shop is a big Pro-M dealer,So I'm looking into testing there MAF's..They do have a 90mm one.I would think the lid will have to be tossed for something else.On the test we did,my car picked up 4rwhp by just taking off the MTI lid I had and running nothing.
Maybe the K+N kit would be better?
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Old Jan 22, 2004 | 06:19 AM
  #46  
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Like was pointed out before. a 90 mm TB won't be a true 90 mm (like the lid and whatnot) since you have a throttle blade taking up some of the cross sectional area at WOT)
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Old Jan 22, 2004 | 06:41 AM
  #47  
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Originally Posted by Slowhawk
My shop is a big Pro-M dealer,So I'm looking into testing there MAF's..They do have a 90mm one.I would think the lid will have to be tossed for something else.On the test we did,my car picked up 4rwhp by just taking off the MTI lid I had and running nothing.
Maybe the K+N kit would be better?
I've got a K&N FIPK you can try..
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Old Jan 22, 2004 | 08:53 AM
  #48  
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Originally Posted by Fireball
Like was pointed out before. a 90 mm TB won't be a true 90 mm (like the lid and whatnot) since you have a throttle blade taking up some of the cross sectional area at WOT)
Yep thats right.

If the 85mm MAFs are properly calibrated and you tested it with a extension off the 85mm MAF you would probalby get some pretty good numbers

I'd like to see the following:

FAST with 90mm T-body
Smooth bore plastic tubing from the 90mm throttle body to the 85mm MAF (without screen)
more tubing to a big *** conical K&N 4 x 9 x 6.5 or similar

The above just for testing.

It would be easy to route a large *** K&N to the pass side fender area if your battery is relocated to the trunk like mine.

All you'd need is a MAF wire extensions, tubing and a K&N. Would be very simple to do

Chris
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Old Jan 22, 2004 | 08:56 AM
  #49  
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Originally Posted by Fireball
Like was pointed out before. a 90 mm TB won't be a true 90 mm (like the lid and whatnot) since you have a throttle blade taking up some of the cross sectional area at WOT)
While this is true, the outside diameter of the TB will be 90mm, and the outside diameter of the current MAF is only 85mm. There will still be a step in the diameter of the tubeing causing a restriction.
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Old Jan 22, 2004 | 09:58 AM
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Originally Posted by FAST LS1
While this is true, the outside diameter of the TB will be 90mm, and the outside diameter of the current MAF is only 85mm. There will still be a step in the diameter of the tubeing causing a restriction.
the 90 and 85 mm diameters you refer to are IDs not ODs
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Old Jan 22, 2004 | 10:13 AM
  #51  
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Originally Posted by Fireball
the 90 and 85 mm diameters you refer to are IDs not ODs
Your right. Sorry, I just woke up
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Old Jan 22, 2004 | 01:09 PM
  #52  
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I was thinking of leaving the MA in it's current location and making a tube that would put the air filter in front of the radiator.(kindof like a twin turbo tube route)
We did put a conical filter on the MA while testing and lost 10hp/10tq across the rev range.The filter was about 10" long off a P1 Stang setup.
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Old Jan 22, 2004 | 03:01 PM
  #53  
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My LS1 intake still does OK

I was more interested to see you lost that much with the dual/dual, I'll have to open the cutout on the dyno next time - I would be happy with 15 extra rwhp..

Thanks for taking the time to dyno before/after on the lsx.
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