H-Pipe opinions please>>> - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Burt4x4 · 05-20-2005, 12:52 PM

I know we have talked about this before but I just need to hear all you alls thoughts before tomorrow.
I take my 72 into the exhaust shop tomorrow to have new pipes installed for my new 454 w/thorleys.

H-pipe Yes or No??
Being a 4x4 the H will have to be placed behind the Xfer case & crossmembers.
Is this too far back to do any good?
Can anyone honestly say they felt/heard any difference after adding a H-pipe?
The place I am taking it too has been in biz fer a LOoong time and I am working with the owner. I will seek his opinion on the matter too I just wanted to hear some real world chatter on this one.
Pls post up if you can. I will be off-line @ 3pmPST today and in the shop first thing tomorrow morning

Alexis · 05-20-2005, 02:54 PM

do it!

Burt4x4 · 05-20-2005, 03:26 PM

Just Do it egh!
Ya I'm leaning towards that, I'll see what the shop owner has to say....

Seems some belive in them and some think they do nothing if not placed in the 'sweet spot'

71RestoRod · 05-20-2005, 04:04 PM

Steve,

I put one on mine mostly for the improvement in sound. I agree that the torque advantage is minimal or nothing with the crossover placed so far back, but it does kill the motorboat resonance you get with the duals.

Resto

Burt4x4 · 05-20-2005, 04:48 PM

Thank you Resto
Have a great weekend
Burt

vtblazer · 05-20-2005, 05:21 PM

Not to late I hope...
Yeah, do it, they sound better with an H pipe.
My blazer that has one sounds alot better than the blazer without.
Both have decent turbo's on em.
Yeah, do it!

Burt4x4 · 05-20-2005, 05:30 PM

Quote:

Originally Posted by vtblazer

Not to late I hope...
Yeah, do it, they sound better with an H pipe.
My blazer that has one sounds alot better than the blazer without.
Both have decent turbo's on em.
Yeah, do it!

I'm still here, got 20min

I'm getting more votes to doIT! hehehe
Seams if anything I can make it sound better.

*Medicanman71* · 05-21-2005, 09:48 PM

I think chevys should have them - it has something to do w/ the cycle which the cylinders fire - its not equal at the collectors on your headers .... the H pipe makes it sound = at the end result comming out yer tips.

Mines right under my rear drive line... when i busted a back U joint it got a little beat (not bad enough to swap out) and held my drive line off the ground.....much better then dragging it at 40mph+ on the gas. Damn it was scary loud though.

shops usually say yes, i think mine said for the same reason as i said above that it IS ok w/ fords though?!?!? who cares about those anyways

LUV2XCLR8 · 05-21-2005, 10:10 PM

Yup, just can't beat a H-PIPE, gotta luv those X-PIPES also, but if it is
4wd a X-PIPE will not work, clearance issues, good luck and get pic's

Burt4x4 · 05-23-2005, 04:20 PM

Thanks for all the replies

I had a few more pics of the rest but somehow my email screwed em up

so I'll have post them up next time.
Burt

**Yukon Jack** · 05-23-2005, 04:54 PM

Looks great Burt!

LUV2XCLR8 · 05-23-2005, 05:21 PM

redz 1970 K5 · 05-23-2005, 11:35 PM

Looks familiar!!

LOVE IT! Like I said before, now we have makeshift driveshaft hoops too!

Burt4x4 · 05-24-2005, 12:30 PM

More pics

vtblazer · 05-24-2005, 12:52 PM

Well...HOWS IT SOUND???

71jimmy · 05-24-2005, 02:03 PM

That looks very sweet!!!!! So I guess your muffler guy felt the H pipe would still enhance performance even tho it's behind the t-case? Or did you end up doing it for other reasons?

Burt4x4 · 05-24-2005, 03:23 PM

Quote:

Originally Posted by vtblazer

Well...HOWS IT SOUND???

I don't know how to make the sound with a keyboard

Basically is is a nice low rumble at lower RPMs then when you RAAATTT the throttle or take off it gets loud, not obnoxiously loud but a nice loud, puts a smile on my face loud hehehehehe

05-20-2005, 12:52 PM	#1
Burt4x4 Registered User Join Date: Feb 2000 Location: Modesto, CA Posts: 1,842	H-Pipe opinions please>>> I know we have talked about this before but I just need to hear all you alls thoughts before tomorrow. I take my 72 into the exhaust shop tomorrow to have new pipes installed for my new 454 w/thorleys. H-pipe Yes or No?? Being a 4x4 the H will have to be placed behind the Xfer case & crossmembers. Is this too far back to do any good? Can anyone honestly say they felt/heard any difference after adding a H-pipe? The place I am taking it too has been in biz fer a LOoong time and I am working with the owner. I will seek his opinion on the matter too I just wanted to hear some real world chatter on this one. Pls post up if you can. I will be off-line @ 3pmPST today and in the shop first thing tomorrow morning __________________ 1972 K5 MPFI454/Sm465/Np205/D60/14FFd/Re-Centerd H1s w/Swamper Iroks

05-20-2005, 03:26 PM	#3
Burt4x4 Registered User Join Date: Feb 2000 Location: Modesto, CA Posts: 1,842	Just Do it egh! Ya I'm leaning towards that, I'll see what the shop owner has to say.... Seems some belive in them and some think they do nothing if not placed in the 'sweet spot' __________________ 1972 K5 MPFI454/Sm465/Np205/D60/14FFd/Re-Centerd H1s w/Swamper Iroks

05-20-2005, 04:04 PM	#4
71RestoRod Registered User Join Date: Sep 2003 Location: Evergreen, CO Posts: 494	Just do it.... Steve, I put one on mine mostly for the improvement in sound. I agree that the torque advantage is minimal or nothing with the crossover placed so far back, but it does kill the motorboat resonance you get with the duals. Resto __________________ 71 Blazer / GMPP ZZ383 / MPFI / 700R4 / 4-Wheel Disk / Ground-up frame off almost completed resto-mod Last edited by 71RestoRod; 05-20-2005 at 04:05 PM.

05-20-2005, 04:48 PM	#5
Burt4x4 Registered User Join Date: Feb 2000 Location: Modesto, CA Posts: 1,842	Thank you Resto Have a great weekend Burt __________________ 1972 K5 MPFI454/Sm465/Np205/D60/14FFd/Re-Centerd H1s w/Swamper Iroks

05-21-2005, 09:48 PM	#8
Medicanman71 Account Suspended Join Date: May 2005 Location: Where the Wild Things Are Posts: 696	I think chevys should have them - it has something to do w/ the cycle which the cylinders fire - its not equal at the collectors on your headers .... the H pipe makes it sound = at the end result comming out yer tips. Mines right under my rear drive line... when i busted a back U joint it got a little beat (not bad enough to swap out) and held my drive line off the ground.....much better then dragging it at 40mph+ on the gas. Damn it was scary loud though. shops usually say yes, i think mine said for the same reason as i said above that it IS ok w/ fords though?!?!? who cares about those anyways Last edited by Medicanman71; 05-21-2005 at 09:53 PM.

05-20-2005, 02:54 PM	#2
Alexis Member since 2000 Join Date: Dec 2000 Location: Mountain View Ca / Mexico Posts: 7,879	do it!

05-20-2005, 05:21 PM	#6
vtblazer Registered User Join Date: Oct 2003 Location: Central Vermont Posts: 8,538	Not to late I hope... Yeah, do it, they sound better with an H pipe. My blazer that has one sounds alot better than the blazer without. Both have decent turbo's on em. Yeah, do it!

05-21-2005, 10:10 PM	#9
LUV2XCLR8 The LuvShack Garage Join Date: Jan 2004 Location: Maple Grove, TN (West Side) Posts: 30,475	Yup, just can't beat a H-PIPE, gotta luv those X-PIPES also, but if it is 4wd a X-PIPE will not work, clearance issues, good luck and get pic's __________________ Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Big Piggy: "Goliath" 07 Kodiak C4500 Lil Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T

05-23-2005, 04:20 PM	#10
Burt4x4 Registered User Join Date: Feb 2000 Location: Modesto, CA Posts: 1,842	Thanks for all the replies I had a few more pics of the rest but somehow my email screwed em up so I'll have post them up next time. Burt __________________ 1972 K5 MPFI454/Sm465/Np205/D60/14FFd/Re-Centerd H1s w/Swamper Iroks

05-23-2005, 04:54 PM	#11
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,683	Looks great Burt! __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

05-23-2005, 05:21 PM	#12
LUV2XCLR8 The LuvShack Garage Join Date: Jan 2004 Location: Maple Grove, TN (West Side) Posts: 30,475	__________________ Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Big Piggy: "Goliath" 07 Kodiak C4500 Lil Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T

05-23-2005, 11:35 PM	#13
redz 1970 K5 OBS guy Join Date: Jun 2004 Location: SoCal Posts: 1,060	Looks familiar!! LOVE IT! Like I said before, now we have makeshift driveshaft hoops too! __________________ 88 Suburban Goodies- Alpine, Auto Meter, BDS, Bilstein, B&M, BFG, Borgeson, Bushwhacker, Cowl hood, Flowmaster, Genuine Gear, Holley, Infinity, JVC, K&N, MB Wheels, MSD, Pioneer, Skyjacker, Sony, Thorley, Walker + more Last edited by redz 1970 K5; 05-23-2005 at 11:35 PM.

05-24-2005, 12:30 PM	#14
Burt4x4 Registered User Join Date: Feb 2000 Location: Modesto, CA Posts: 1,842	More pics __________________ 1972 K5 MPFI454/Sm465/Np205/D60/14FFd/Re-Centerd H1s w/Swamper Iroks

05-24-2005, 12:52 PM	#15
vtblazer Registered User Join Date: Oct 2003 Location: Central Vermont Posts: 8,538	Well...HOWS IT SOUND???

05-24-2005, 02:03 PM	#16
71jimmy Registered User Join Date: Mar 2004 Location: Sacramento, CA Posts: 1,084	That looks very sweet!!!!! So I guess your muffler guy felt the H pipe would still enhance performance even tho it's behind the t-case? Or did you end up doing it for other reasons? __________________ '71 Jimmy, 350, SM465, NP205, 2in Tuff Country lift, 33s on rallies, TBI, softtop and hardtop "If life was fair you'd be able to afford one of each and a garage large enough to house them all."



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