Harrop Manifold Results!!! 588 Street able HP 383 Stroker

[Plan B]

Sam’s Performance bolted up the new Harrop 8tb today to one of Sam’s 383 stroker kits…. It’s a great piece of gear and certainly gets the thumbs up from Sam….

The engine is going into a Monaro tomorrow so I’ll keep you posted on the chassis dyno results and maybe a video….

588HP @ 6600RPM & 524FtLB TORQUE @ 5350RPM… N/A 383 All on pump fuel…. = Very Nice….

http://www.purefect.com.au/planb/engine%20dyno%20stuff/1.jpg
http://www.purefect.com.au/planb/engine%20dyno%20stuff/2.jpg
http://www.purefect.com.au/planb/engine%20dyno%20stuff/3.jpg
http://www.purefect.com.au/planb/engine%20dyno%20stuff/4.jpg
http://www.purefect.com.au/planb/engine%20dyno%20stuff/5.jpg
http://www.purefect.com.au/planb/engine%20dyno%20stuff/6.jpg
http://www.purefect.com.au/planb/engine%20dyno%20stuff/588hp.jpg

[Craig]

Niiiiiiiiice :burnout:

[LX346]

Crazy TQ numbers there from a 383, is it a solid roller setup?

Nice 4,500rpm converter and that baby would slingshot out of the hole.

Talk about a perfect X-mas present, just in time, pity it won't fit under the tree.

[Fabio's CV8]

Looking sexy bloke. ;)

[F6Mauz]

Niiiiiiiiice :burnout:

Who's monaro? :P

[Fabio's CV8]

Who's monaro? :P

Some blokes :lol:

[Plan B]

Crazy TQ numbers there from a 383, is it a solid roller setup?



Well, 8TB's are good for torque.... ;)

It's not a solid roller set-up.... Static compression ratio is just 10.3:1...The peak RPM is safe too. It'll run on pump fuel all day long.... :)

[Criso]

Nice results.Sam sure knows his stuff when it comes to N/A engines alot of time and development.

[SLE355]

Crazy TQ numbers there from a 383


Thats the first thing i noticed to, thats an awesome amount of torque and almost 600hp on pump fuel :eek:

Interested to know was there any differance with the covers and filters on or is that what it made with them on?

[LX346]

Its still hydraulic setup, even better, stuff all maintenance and huge power on pump fuel, what every street machiner dreams of.

Well done too the boys.

Better ring Santa and change the wheels for a 383 Sam special on the Xmas wish list.

[Rate]

Very nice... I'm sure the owner of the Monaro can't wait to pick it up... ;)

[AndyP]

I bet he's getting horney just reading this thread!!!

One hell of a company car :D

[nickh]

well done ...very tuff the folks back at the village would be impressed its abit of a improvement from camels...:P jkn nah well done..

[Animal]

I was lucky enough to be there when Sam fired it up.

For a guy who has built high performance engines for 20 years, he sure knows how to smile when he builds one like this !

My Monaro is free if it needs a new home :D

[exwrx]

Beautiful set of figures there, and serious looking intake.

Well done. :D

[EnhancedCalais]

I was talking to the guys at Harrop and they will be at the SummerNats with this and the blower on display in one of the trade pavillions.
I am now certainly going to SummerNats to check them out!

[EXECJIM]

Niiiiiiiiice :burnout:

Just the thing that is needed in the state of NAZI, oops i meant Victoria with all the "safety" :rolleyes: cameras around :mad:

That should be a very "tractable" :lol: combination there :lol:
I cant wait to see it at the track :cool:
I wonder if the owner will be bringing spare jocks :lol: to the track ;)

NICE :cool:

Another fine "SAM" product, does he ever stop :confused:

Jim

[KiWi]

Does that mean the owner will run a 12 now all the time no worries. ;)

Simon

[Craig]

Well I dunno, Fab (the 1 run wonder) might be able to run another 12.9999999999999999999999 :lol:

Does that mean the owner will run a 12 now all the time no worries. ;)

Simon

[KiWi]

Well I dunno, Fab (the 1 run wonder) might be able to run another 12.9999999999999999999999 :lol:

Yes, maybe. But no doubt the mph will be HUGE!!!! :D

simon

[HRT 8]

Does that mean the owner will run a 12 now all the time no worries. ;)

Simon

If belonged to Fab then I guess he might. But it doesn't so I guess he wont. Sorry Fab. :D

[Fabio's CV8]

If belonged to Fab then I guess he might. But it doesn't so I guess he wont. Sorry Fab. :D


hahahaha

The fat lady hasn't dung yet. But she is getting fatter! :eek:

[Blown Monaro]

Great results, got to love an all motor combo, thats going to be a mean set up on the street.
Couple of questions Plan B.

Did Sam run it on the dyno with another inlet manifold (LS6/FAST)for comparisons with the Harrop, if so what did it make ?

Can you let us in on the cam size and valve train set up ? eg lifters/rockers

What injectors and fuel pressure are used ?

What size are the extractors and planned exhaust system to be used in the car ?

Thanks for any info :D

[r8ls1]

Nice power. As per VX 225 I wonder how much the harrop contributed to the final figure over say a stock ls6 intake.

[vt2vx]

apparently when the harrop covers and filters were added power dropped.

the covers had to be modified due to the restrictions. not sure what the end figure was with the modified covers. they do look a little smallish standard those covers, for a stroker, prob ok for a cam only.

[SSbaby]

What sort of improvement for a 346 with the Harrop, Peter?

Nice kit, btw. :D

[Craig]

What sort of improvement for a 346 with the Harrop, Peter?From what I know it hasn't been on another motor due to time contraints (christmas, holidays etc)

Did Sam run it on the dyno with another inlet manifold (LS6/FAST)for comparisons with the Harrop, if so what did it make ?Ran with FAST when 1st on dyno but can't remember what it made, the extra torque and idle quality is what it's all about though...

What size are the extractors and planned exhaust system to be used in the car ?From the pics it has DF headers, not sure on size...

[MattJ]

What sort of improvement for a 346 with the Harrop, Peter?

Nice kit, btw. :D


FYI, we ran one at the Melbourne Holden Vs Ford show a few months ago on our Cam only 346 VY SS. The back to back testing was performed on the same day against a LS6 manifold and 84mm throttle body. The base run as the car was driven resulted in 305kw at the wheels, With the Harrop 8 Throttle body manifold fitted and tuned the car made 321kw at the wheels with limited tuning before the show.

Thats preety f'n good when the most we have seen with a 90mm Fast manifold on a 383 is about 6-7kw at the wheels.

[Plan B]

Without a doubt, 8 individual throttle bodies are the best way to go when talking about idle quality and throttle response. At wide open throttle all manifolds are good providing the intake runner length is near enough to what the engine needs.

With other LS1 combinations, I’ve seen little to no difference in peak horsepower between 8 throttle bodies and the fast manifold, but power under the curve and torque had picked up 40fLB’s average with 8 TB’s over the fast. That’s understandable, the Fast may not suit all engines, but the ease to tune runner lengths like the Harrop product, certainly helps an engine builder adjust runners for what the engine needs.

For all out performance, the Harrop product is not only extremely well made, it also has the ability to change runner lengths if you really want to get into it, therefore giving optimum power, torque, idle quality and throttle response unlike that of a one size fits all manifold. :)

Any back to back comparison should take this into account.

[MattJ]

Without a doubt, 8 individual throttle bodies are the best way to go when talking about idle quality and throttle response. At wide open throttle all manifolds are good providing the intake runner length is near enough to what the engine needs. Still, you do have to take into account runner design, individual runner entry, intake manifold material and throttle body sizing.


With other LS1 combinations, I’ve seen little to no difference in peak horsepower between 8 throttle bodies and the fast manifold, but power under the curve and torque had picked up 40fLB’s average with 8 TB’s over the fast. That’s understandable, the Fast may not suite all engines, but the ease to tune length runners like the Harrop product, certainly helps an engine builder adjust runner lengths for what the engine needs. And, they sound farkin great!!


For all out performance, the Harrop product is not only extremely well made, it also has the ability to change runner lengths if you really want to get into it, therefore giving optimum power, torque, idle quality and throttle response unlike that of a one size fits all manifold. :)

Any back to back comparison should take this into account.
I agree, our testing was based on the ''as supplied" LS6 manifold and the "as supplied" Harrop unit, the beuty is that there is possibly more left in this particular combination with carefull dyno testing.

[HRTSEN]

Hi

So can I buy the xdemo Harrop inlet manifold with 8tb?

Puuuuuuhleeeeeeeeese!

regards,

Richard
CLUBVX

[Justice R8]

Without a doubt, 8 individual throttle bodies are the best way to go when talking about idle quality and throttle response. At wide open throttle all manifolds are good providing the intake runner length is near enough to what the engine needs.

With other LS1 combinations, I’ve seen little to no difference in peak horsepower between 8 throttle bodies and the fast manifold, but power under the curve and torque had picked up 40fLB’s average with 8 TB’s over the fast. That’s understandable, the Fast may not suit all engines, but the ease to tune runner lengths like the Harrop product, certainly helps an engine builder adjust runners for what the engine needs.

For all out performance, the Harrop product is not only extremely well made, it also has the ability to change runner lengths if you really want to get into it, therefore giving optimum power, torque, idle quality and throttle response unlike that of a one size fits all manifold. :)

Any back to back comparison should take this into account.

Engine looks, sounds great and making good power as well. It is all about what you want. The harrop is certainly a good looking system. A lot better looking than the original mockups they had that made it look like something that should be on a hot rod. Typical Harrop, engineering excellence.

[hogs]

G'Day Folks,

Had a look at the set up at the Holden / Ford Show. Verrrry impressive!

What would the likely gains be on an unopened moter currently with 229RWKW's?

The sound of the car at the Show was fantastic. Would this set up reduce the throttle lag in an auto which is a current frustration?

Finally, the burning question, How many $$$$'s?

Cheers,

Hogs, :)

"GO HARD OR GO HOME!" :burnout:

[8throttlebodies]

I checked the Harrop Site..
Around $4k for the manifold and $1K for Installation kit.

Couldnt find out wat the install kit had in it tho... but I didnt ring them either..

8tb

[VX8255]

I checked the Harrop Site..
Around $4k for the manifold and $1K for Installation kit.

Couldnt find out wat the install kit had in it tho... but I didnt ring them either..

8tb

Harrop Hurricane installation kit includes outer sub-airbox
covers, filters, and front cold air tray.

[Craig]

Here are the bits...

Manifold (http://www.harrop.com.au/root_folder/harrop_manifolds/hurricane_standard.html)

Installation Kit (http://www.harrop.com.au/root_folder/harrop_manifolds/installation_kit.html)

[8throttlebodies]

the kit is just sooo sexy....

Do the filters sit anywhere near the VZ Monaro vents ?

8tb

[exwrx]

the kit is just sooo sexy....

Do the filters sit anywhere near the VZ Monaro vents ?

8tb

Funnily enough, they line up perfectly ;)

[Space Pope]

Sounds like it delivers....another quality Harrop product.


Hmmm...wish I could afford to top my latest build with it ...maybe down the track I'll consider it. The old pockets are well and truely turned out at present so it's not an option for me right at the minute. :(

[Mykdiver]

Does anyone here know how to modify it for an 98 Camaro? I mean the TB to butterfly setup, how do you modify the throttle cable and such?
I am looking at this for my Camaro, and would like to know as much as I can before spending the $.
Also does anyone know how much that is in US $s?

[Ken]

Does anyone here know how to modify it for an 98 Camaro? I mean the TB to butterfly setup, how do you modify the throttle cable and such?
I am looking at this for my Camaro, and would like to know as much as I can before spending the $.
Also does anyone know how much that is in US $s?

I have tried responding to your emailed request for more info for the last week, but your email appears to be failing.
I have PM'ed you ... please respond.

[Mykdiver]

Thanks for the info. You email got through, and I PMed you back.
It sounds like you guys have a very nice product, and a great reputation.
Do you know if anyone else in the US has one of these? It would be cool to be the 1st person in the US to run one, and it would be totally unique. :cool:

[10secvette]

Can someone give the cam and head specs for this combo? Thanks!!

[z06 kos]

Can someone give the cam and head specs for this combo? Thanks!!

Yes please...specs on cam and heads.

Also how much does this Manifold cost in USD? Very interested in purchasing one soon.

[fyreblade2000]

Thanks for the info. You email got through, and I PMed you back.
It sounds like you guys have a very nice product, and a great reputation.
Do you know if anyone else in the US has one of these? It would be cool to be the 1st person in the US to run one, and it would be totally unique. :cool:


Can someone give the cam and head specs for this combo? Thanks!!


Yes please...specs on cam and heads.

Also how much does this Manifold cost in USD? Very interested in purchasing one soon.


Pretty good technology from a bunch of Convicts hey guys!!!!?? :nyuk: :nyuk: :nyuk:

Harrop make some really top notch gear for your LS1 engines don't they !? :bow:

[Animal]

Yes please...specs on cam and heads.

Also how much does this Manifold cost in USD? Very interested in purchasing one soon.

Considering that this engine was built over 2 years ago it may take a while to find the cam specs, from memory it was a comp cam 226/226 at 110 LSA. Heads were pretty much standard, maybey a little cleaning done by Sam.

Maybey the owner might be able to send in the correct specs if he remembers them.

As far as Au$ to US$ conversion rates, I think the Harrop team now has a US distributor. They will clarify this for sure.

Ken

[HRT 8]

If we are still referring to Craigs Monaro here then the cam is a shit load bigger than a 226.

Try around the high side of 240's on a 106LSA.

[Craig]

If we are still referring to Craigs Monaro here then the cam is a shit load bigger than a 226.

Try around the high side of 240's on a 106LSA.Just checked under the bonnet, yep still mine :p

fully built with lunati stroker kit, diamond pistons, comp cam, cnc ported heads, harrop manifold etc etc etc

looks something like this pic (http://ccdigital.customer.netspace.net.au/Enginebay.jpg)

[Plan B]

Just checked under the bonnet, yep still mine :p

fully built with lunati stroker kit, diamond pistons, comp cam, cnc ported heads, harrop manifold etc etc etc

looks something like this pic (http://ccdigital.customer.netspace.net.au/Enginebay.jpg)


Hey Big Fella!

Good to see you around. :)

These thread miners are OK in my books! :lol:

[bsbozzy]

Just checked under the bonnet, yep still mine :p

fully built with lunati stroker kit, diamond pistons, comp cam, cnc ported heads, harrop manifold etc etc etc

looks something like this pic (http://ccdigital.customer.netspace.net.au/Enginebay.jpg)

That looks awesome!!!

[vyssbeast]

I see you have change the intake abit since the original post, bit of an OTR type intake now ... did it make alot of difference over the original pods in the engine bay??

[Keithy George]

Could the inlets be modified to run off some sort of OTRCAI possibly? Of course it would need to be a custom OTRCAI with twin outlets.

[8throttlebodies]

Could the inlets be modified to run off some sort of OTRCAI possibly? Of course it would need to be a custom OTRCAI with twin outlets.

This IS an over the radiator style.. look closer...

It just using the bonner as the top side of the OTR..

8tb

[Ken]

Just checked under the bonnet, yep still mine :p
fully built with lunati stroker kit, diamond pistons, comp cam, cnc ported heads, harrop manifold etc etc etc
looks something like this pic (http://ccdigital.customer.netspace.net.au/Enginebay.jpg)

What sort of numbers are you making with this now? Any dyno sheets?
If you like, I would love to run it up on our dyno.

[RampantWS6]

I hate to dig up an old thread guys, but I am not allowed to PM Craig due to my low post count.

I am trying to learn as much as I can about the Harrop Huricane, since I now own one and want to use it on my new 455ci LS7.

What I really would like to know is what type of cam does this type of intake like and what tuning softwares have been used on them.

I have more details on my motor under the Harrop forum.

Thank you in advance for any help or suggestions.


Regards,
Dale

[Animal]

Hi Dale,

So you have one of theses :)

http://www.haroc.1337thing.com/ls1/Animal/Nov%202007/pontiacfirebirdtransamws6back1.jpg

.

http://www.haroc.1337thing.com/ls1/Animal/Nov%202007/pontiacfirebirdtransamws6front1.jpg

Very nice !!

A hurricane manifold was on my 383 stroker before the blower.

I was running a 232/232 at 110 lsa and found it to perform well.

As has been mentioned before, the tuning will be the key to your project.

Regards,

Ken

.

[SINISTER R8]

I know this is a very old post but just looking for some info, and i am new so i am getting used to the forum ways.
i am very interested in the harrop manifold, i have an LS1 at the moment and want a 402ci stroker, what would be better, a 402ci stroked LS1, LS2 or LS3 with the harrop manifold and other bits and pieces, or bite the bullet, pay the big bucks and go for the LS7 with the harrop manifold. looking for info on the cost, power and reliabilty of each option to have it as a killer street car.

[HRT 8]

I know this is a very old post but just looking for some info, and i am new so i am getting used to the forum ways.
i am very interested in the harrop manifold, i have an LS1 at the moment and want a 402ci stroker, what would be better, a 402ci stroked LS1, LS2 or LS3 with the harrop manifold and other bits and pieces, or bite the bullet, pay the big bucks and go for the LS7 with the harrop manifold. looking for info on the cost, power and reliabilty of each option to have it as a killer street car.
You've seen these results from a little 383 with teh Harrop Hurricane, why not ask the bloke that screwed it together. Sam at Sams Performance. You'll get you answers!!