Just though you LS1 guys would want to see this. Don't know if it has been posted or not. See it at www.nitrouswarehouse.com. Pretty sweet looking set up. John Stewart one of the x owners of NX Express came up with it.

------------------
87 IROC L98 700R4 A few mods. Best et 12.96 at 110 mph
All motor No NOS or Supercharger.
96 WS6 FORMULA Best et 13.5 at 105 mph

 

Looks damn cool, but freakin expensive.

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1998 Camaro SS A4 #2,515 OF 3017
NBM w/ grey leather
T-tops, all GM and SLP options
MODS:
-SLP dual-dual (came with car)
-Hypertech 160 thermo
-SLP Lid w/ K&N and smooth air bellows

**1997 Z28 M6...yes it was modded. Totalled by a girl who couldn't stop for a stop sign on 4-18-2002

 

not to mention probalby not the best thing for 90% of the LS1s out there. this is a racing manifold, the short runners would probalby kill low end torque, a big stroker, or radical stock dicplacment car would probalby kick booty with it...

 

Looks to be about the same height as a SuperRam. I have a SuperRam on my engine and love it. As long as I don't have to take it off. I have no problem with low in torque. Can light the tires at will. Not that it is what I want to do.

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87 IROC L98 700R4 A few mods. Best et 12.96 at 110 mph
All motor No NOS or Supercharger.
96 WS6 FORMULA Best et 13.5 at 105 mph

 

a super ram? this is for a TPI or somethign right? height is not the issue, runner length is.

the longer the runners the lower the torque curve, the shorter, the higher.

If the intake Im thinking of is the one you are talking about (accell?) the runners curve around into the base of the manifold, and are about 12-15 inches long. They might be a lot longer than that, Ive never looked ito them...

stock LS1 runners are about something like 19-20 inches, those look like about 4-5. notice they so straight to the port, without any curving. (seems to be designed along the same vein as the sheet metal intakes for pro stock type cars.) this would almost definetly hurt low RPM torque. the intake alone wont kill it completely, but couple it with a cam, and you may have trouble. in an auto it wont be as noticable, but day to day driving in an M6 would problaby be a bit more difficult. Racing of course wouldnt suffer. lighting the tires wouldnt suffer either, I couldnt light the tires at 1000 RPM stock, so It really wouldnt matter if it kills low end for that. a stock convertered auto might have more trouble though. Remember LS1s are known for having less low end than the LT1 and L98 already.

This would be similar to going from a performer intake to a victor JR intake on a carbed car. the shorter, straighter runners will sacrifice some low end for top end.

if it was a whole lot better for the averagely modded cars, many more people would have one. even at that price. there are some guys willing to pay that for a couple tenths gain. We have known about this manifold for quite a while, yet I havent heard of anyone running it, even on the really hard core cars that I personaly would think would bennefit greatly from them.

I wasnt trying to bag on you for posting it. Just stating my oppinion on the product. I still say its a racing manifold, designed for big engines, or engines that spend lots of time in high RPMs, not normal Everyday street cars. (the fact that the website says it sells racing products would seem to verify that)Keep in mind Im not saying it CANT be used on an otherwise stock motor, But i think it would be dissapointing unless you understood what you were getting.

 

I just realized you are talking about the new intake on that site. take everythign I have been saying, and add to it.

The site itself verifies exactly what I have been saying. it specificaly states its for 396-427-454 Cubic inch engines or engines that operate int eh 7000-9000 RPM range.

I will just about lay money on a "normal" heads and cam car you will lose low end in a pretty big way in exchange for top end

 

Freak is right. This is how the T.P.I.S. Mini-Ram works too. It uses shorter runners (3" vs 17" I think) to move the powerband up much higher.

 

i believe the L98 had 17" runners. LT1's are probably about 7-8" (including the intake port on the head)... are you sure LS1's have that long of runners? i havent looked inside the intake on one yet.
p.s. they can keep that friggin $3500 intake manifold.
jeremy

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'93 z28 m6 (Purple Pearl Metallic)
stock shortblock, 230/236 cam, mildly ported heads, hooker longtubes, csi waterpump, all the usual bolton stuff.....
7.98 @ 88.7mph 1.84 60' (1/8mi)

[This message has been edited by Jerm93z28 (edited September 06, 2002).]

 

interesting.. wonder if they can post a real world test on it though vs a ls6 intake manifold.

 

I found this in a description of the LS1

"LS1 uses a tuned, intake port length as did the L98 of 1985-'91; however, LS1's 15-in. runner length is tuned for top-end power whereas L98s 21-in. runner was tuned for mid-range torque."

I was a little long on the LS1, but short on the L98

The LT1 lengths seem way short, hav eyo umeasured them or are you just going on what they look like? remember you cant always see the entire runner, sometimes they continue into the plenum.

 

its a guesstimation on the LT1 runner length, but you can deffinately see where they end and begin. they are straight runners, no turns, and if you look into the tb opening you can see all the ports. im thinking it is about 4" worth of intake port on the head itself, and the runner in the intake is prolly 5-6".
would a LT1 type intake be a better design for high rpm use than the LS1? hmmmm....
jeremy



------------------
'93 z28 m6 (Purple Pearl Metallic)
stock shortblock, 230/236 cam, mildly ported heads, hooker longtubes, csi waterpump, all the usual bolton stuff.....
7.98 @ 88.7mph 1.84 60' (1/8mi)

 

The L98 (350 TPI) had a 17" runner...

 

its possible that the 21 inch measurment wa including the port in the head,the LS1 one might also

[This message has been edited by Freak (edited September 07, 2002).]

 

Yes the runner length was from the plenum opening down the runners, and through the base...the intake port in the head is not included...