Nice intake manifold... - The ITB thread
TECH Enthusiast
Joined: Nov 2002
Posts: 550
Likes: 0
From: Michigan, auburn HIlls
on cathedral style ports (ls1-6-2) we have seen as much as 60 hp gains over ls6 manifold when on a large cube race engine.
I plan to test the manifold on a 427. At the moment it will be design for l92, ls7 and c5r heads
I plan to test the manifold on a 427. At the moment it will be design for l92, ls7 and c5r heads
Staging Lane
Joined: Aug 2005
Posts: 50
Likes: 0
From: Melbourne, Oz
Originally Posted by ls1408cp
I am not trying to make it worse I am just tried of people making up ****
There are a lot of these manifold running on LS1/LS2's in Aussie making very significant gains over all other manifolds tried. What is the "making up ****" you are referring to?
Staging Lane
Joined: Aug 2005
Posts: 50
Likes: 0
From: Melbourne, Oz
Originally Posted by Cliff
What I find interesting; I would think employees from Harrop would jump in this thread and help out with the issue we are having. Customer service and technical help would be wonderful. The faster we are up to speed on their intakes the more f-body people would buy their product. They are members of LS1tech but they never give suggestions or tech help.
However ... in our defence I do believe we responded directly & promptly as soon as we were made aware of the concerns you have had with this install, and it is my understanding that Mike is working through the issues locally and coordinating with us in Aussie. I was on the phone to the owner within hours of being told there was dissappointment.
Please feel free to respond if I am incorrect.
Also ... I can be contacted via ken@harrop.com.au or by phone on +61.3.9474-0900 if anyone wishes to seek technical support on any of our products.
Originally Posted by TUF383
Yep ... I absolutely agree that we should spend more time reading threads on our products. Unfortunately, I do not have the spare time available to jump on the forums as much as I would like, and consequently I don't get to see or hear of a lot what is written/said. This is the first time I have seen this thread in weeks.
However ... in our defence I do believe we responded directly & promptly as soon as we were made aware of the concerns you have had with this install, and it is my understanding that Mike is working through the issues locally and coordinating with us in Aussie. I was on the phone to the owner within hours of being told there was dissappointment.
Please feel free to respond if I am incorrect.
Also ... I can be contacted via ken@harrop.com.au or by phone on +61.3.9474-0900 if anyone wishes to seek technical support on any of our products.
However ... in our defence I do believe we responded directly & promptly as soon as we were made aware of the concerns you have had with this install, and it is my understanding that Mike is working through the issues locally and coordinating with us in Aussie. I was on the phone to the owner within hours of being told there was dissappointment.
Please feel free to respond if I am incorrect.
Also ... I can be contacted via ken@harrop.com.au or by phone on +61.3.9474-0900 if anyone wishes to seek technical support on any of our products.
Originally Posted by TUF383
I don't know what it is that we (Harrop) could possibly have done to offend you, but it is clear that you have some reason to cause grief. Perhaps you work/know/like a company that considers Harrop a threat.
There are a lot of these manifold running on LS1/LS2's in Aussie making very significant gains over all other manifolds tried. What is the "making up ****" you are referring to?
There are a lot of these manifold running on LS1/LS2's in Aussie making very significant gains over all other manifolds tried. What is the "making up ****" you are referring to?
Staging Lane
Joined: Aug 2005
Posts: 50
Likes: 0
From: Melbourne, Oz
Originally Posted by Beast96Z
Thanks for posting up Ken. Since there aren't many of these intakes around here, it would be nice if you could post up any things we should look for upon the initial install. We understand that this isn't just a bolt on and go intake, but if there are a few things that you might know about that we don't, it might help us out. Maybe it'll save us a headache or two.
Historically, there has been some damage done to manifolds by the physical idle stop being incorrectly adjusted (changed from our factory setting) which may allow the throttle plates to 'broach' the bore when cold ... as mentioned in this thread. We have now implemented a solution which reduces the chance of bore damage from the throttle plates, and also enables the engine idle speed to be reduced to "stall" if desired.
There is no doubt that the tune of the Hurricane'd engine is critical and certainly not as forgiving as other manifold style tunes. We have a few of our customer's tunes which are available if required for comparison. There is something fundamentally wrong with the install or tune if the Hurricane does not outperform a FAST ... the evidence within Aussie of that is conclusive.
We look forward to getting your installation to the point that it's performance exceeds your expectations.
I really hope this works out for everyone involved. I saw a 69 Camaro on the power tour with the Harrop intake on a ls2 402 and it sounded great. I beleive they had the idle set around 750 rpm and it didn't lope or surge as much as my car with a TR224 with the idle set at 900.
The guys who built the car are located in PA, so you may be able to contact them and ask them what they had to do to get the intake dialed in. Here's their website:
http://www.gforcedesignconcepts.com/gallery/fuel
Just a thought.
The guys who built the car are located in PA, so you may be able to contact them and ask them what they had to do to get the intake dialed in. Here's their website:
http://www.gforcedesignconcepts.com/gallery/fuel
Just a thought.
Originally Posted by TUF383
During the first weeks of '07 we will do a fresh install on a donor car and will be taking photos and notes for creating an installation guide (similar to the supercharger kits guide we have done).
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Originally Posted by TUF383
We have a few of our customer's tunes which are available if required for comparison.
We look forward to getting your installation to the point that it's performance exceeds your expectations.
We look forward to getting your installation to the point that it's performance exceeds your expectations.
Thanks for posting up the helpful hints. I'm still at ground zero with my install, but plan to get it all put in just after 1st. Hopefully since my intake is new, no factory setting have been messed with.
Staging Lane
Joined: Aug 2005
Posts: 50
Likes: 0
From: Melbourne, Oz
Originally Posted by Beast96Z
.... What's the biggest cube motor that you would have access to as far as tune files go? Something from a 427+ would be great ....
Email me when you are ready.
TECH Enthusiast
Joined: Nov 2002
Posts: 550
Likes: 0
From: Michigan, auburn HIlls
Our manifold (KINSLER.COM) is comming along. Final design will be complete pretty shortly. I am working on making the trumpets and filter assembly out of carbon fiber. Again the first run of these manifolds will be for the new l92 and ls7 heads. It should also fit the c5r heads.
Distinguishing features.
-It is a 2 piece manifold for fitment(2 seperate castings)
-Ported to match your particulay head. (even if it has an aftermarket CNC port)
-Differant injector possitions for race and street applications.
PM me with any questions you may have.
Kinsler.com
Thanks
James
James, will yours be able to compete, price wise, with these other manifolds? Most of the Carbon Fiber ITB's I have seen have been around $10k. The runners also looks fairly short as compared to other ITB's. Will that effect the power band, similar to how a sheet metal does?
TECH Enthusiast
Joined: Nov 2002
Posts: 550
Likes: 0
From: Michigan, auburn HIlls
Yes, the runner length impacts the power band (dramaticly).
The runners can be as short as about 11 inches to as long as you desire. We make them custom to customer request. I have measured Harrops and it is about 12.8 inches long.
Most every engine requires a differant runner length and volume. It depends on RPM, CID, and camshaft intake valve duration.
If the customer doe not know what he needs I can give him an estimation from expierance and a few calculations. LS series engines generally do well in the 10-14" range.
Price is targeted to be about 3800 U.S. dollars.
Intake manifolds and fuel injection is all we do.
Thanks
Kinsler.com
The runners can be as short as about 11 inches to as long as you desire. We make them custom to customer request. I have measured Harrops and it is about 12.8 inches long.
Most every engine requires a differant runner length and volume. It depends on RPM, CID, and camshaft intake valve duration.
If the customer doe not know what he needs I can give him an estimation from expierance and a few calculations. LS series engines generally do well in the 10-14" range.
Price is targeted to be about 3800 U.S. dollars.
Intake manifolds and fuel injection is all we do.
Thanks
Kinsler.com
Last edited by Argon Z; Dec 25, 2006 at 01:10 PM.
TECH Enthusiast
Joined: Nov 2002
Posts: 550
Likes: 0
From: Michigan, auburn HIlls
no that is the intake manifold runner length only.
With the runner lengths we offer the 2nd and 3rd waves are generally used for peak power
With the runner lengths we offer the 2nd and 3rd waves are generally used for peak power
Last edited by Argon Z; Dec 27, 2006 at 09:15 PM.
I don't know from these post about 402's and 427's making 530 rwhp with huge cams, it just seems normal for the amount of money thrown into these setups... No one has mentioned torque yet... There are certainly people making that power with fast setups and those cubes.
I can't wait to see one properly set-up...
Beast, I'm dying to know how your set-up is coming along, wanna borrow a digital camera? "Us little people like to see these high dollar set-ups progress."
I'd love to have one on my 346 with a hellion cam, but if it's going to take 3 weeks worth of labor to tune it, I might as well say to hell with it and put in a smaller cam/fast, then up the jets 50 horsepower.
How many hours is 30th something with the black ta into it for?
I can't wait to see one properly set-up...
Beast, I'm dying to know how your set-up is coming along, wanna borrow a digital camera? "Us little people like to see these high dollar set-ups progress."
I'd love to have one on my 346 with a hellion cam, but if it's going to take 3 weeks worth of labor to tune it, I might as well say to hell with it and put in a smaller cam/fast, then up the jets 50 horsepower.
How many hours is 30th something with the black ta into it for?
Last edited by Lythropus; Jan 1, 2007 at 05:12 PM.
Teching In
Joined: Jan 2007
Posts: 2
Likes: 0
Originally Posted by Argon Z
The runners can be as short as about 11 inches to as long as you desire. We make them custom to customer request. I have measured Harrops and it is about 12.8 inches long.
And do your runners have any taper?
Originally Posted by glueman
Do your measurements include the intake port length (inside the head)?
Originally Posted by Lythropus
I don't know from these post about 402's and 427's making 530 rwhp with huge cams, it just seems normal for the amount of money thrown into these setups... No one has mentioned torque yet... There are certainly people making that power with fast setups and those cubes.
I can't wait to see one properly set-up...
Beast, I'm dying to know how your set-up is coming along, wanna borrow a digital camera? "Us little people like to see these high dollar set-ups progress."
I'd love to have one on my 346 with a hellion cam, but if it's going to take 3 weeks worth of labor to tune it, I might as well say to hell with it and put in a smaller cam/fast, then up the jets 50 horsepower.
How many hours is 30th something with the black ta into it for?
I can't wait to see one properly set-up...
Beast, I'm dying to know how your set-up is coming along, wanna borrow a digital camera? "Us little people like to see these high dollar set-ups progress."
I'd love to have one on my 346 with a hellion cam, but if it's going to take 3 weeks worth of labor to tune it, I might as well say to hell with it and put in a smaller cam/fast, then up the jets 50 horsepower.
How many hours is 30th something with the black ta into it for?