Harrop HH122 LS

[bullant]

Hi ken the new harrop steath supercharger HH122 LS is this much of a improvment over the HH112 LS.And when would this be available for the L76?

[Ken]

Hi ken the new harrop steath supercharger HH122 LS is this much of a improvment over the HH112 LS.And when would this be available for the L76?

The HH122 will supply >8% more air per rev than the HH112, but >12% more than the M-series.

We intend to have the L76 kit durability testing complete by late January, but there are still some forced-induction calibration issues to overcome with the VE.

[lee ls1]

Dont now if you could shed some light on this for me but does the hh112 for standed engine and the hh122 for mod engine?
and if so what types of mods are needed to run the hh122 on a ls1 vz fly-by-wire?
also what type of number are you looking at over the older standed m112?

Cheers

Lee

[Ken]

Dont now if you could shed some light on this for me but does the hh112 for standed engine and the hh122 for mod engine?
and if so what types of mods are needed to run the hh122 on a ls1 vz fly-by-wire? also what type of number are you looking at over the older standed m112? Cheers Lee

Hi Lee ...
The HH112 is certainly designed for the standard to minor modified engines, and will support ~360rwkW.
The HH122 is not too big for a standard engine, but is ideal for engines that are stroked and/or cams/head work. It will support in excess of 450rwkW (402ci, big cam). The HH122 is $770 more than the HH112.

Hope this helps.

[lee ls1]

yeah thats spot on thanks, and thanks for the fast reply, but as i am in newcastle where would be the best place to have it all fitted i.e. drive down to Harrop or one of your dealers up hear?

[GETUTED]

yeah thats spot on thanks, and thanks for the fast reply, but as i am in newcastle where would be the best place to have it all fitted i.e. drive down to Harrop or one of your dealers up hear?

Speak to Sonny at Marranos. He'll fit and tune it to perfection :yahoo:

[Ken]

...as i am in newcastle where would be the best place to have it all fitted i.e. drive down to Harrop or one of your dealers up hear?

Call Damian or I on 03.9474-0900 and we can offer some names of companies who our customers report good results.

[lee ls1]

will do thanks for the info

cheers lee

[GTO LS2]

Ken,

I am extremely interested in the HH122, are you able to advise approx power output on this model based on the details as per your website

I have an LS2 GTO so I would be looking at.........(copied from your website)

HH122-LS2-IC - LS2 intercooled utilising standard throttle body - $10,270.00 inc GST
*All kits include high flow injector upgrade as standard.

Obviously not including Tune / fitting etc from workshop of my choice

I understand tuning etc will differ but if you can give me an estimate I would appreciate it


Thanks

[Ken]

Ken, I am extremely interested in the HH122, are you able to advise approx power output on this model based on the details as per your website. I have an LS2 GTO so I would be looking at.........(copied from your website)
HH122-LS2-IC - LS2 intercooled utilising standard throttle body - $10,270.00 inc GST
*All kits include high flow injector upgrade as standard.
Obviously not including Tune / fitting etc from workshop of my choice. I understand tuning etc will differ but if you can give me an estimate I would appreciate it


Thanks

Based on the info shown in your 'details' panel (~260rwkW) I am assuming the exhaust (at least) is non-standard, so you should be looking good for a result ... in excess of 360 rwkw. I suspect fuel supply may be an issue, but we have a very elegant & legal solution for that too ;)

We have had a standard engine (except valve springs), with 1-5/8" headers, 3" dual exhaust, & upgraded fuel supply consistantly pull >370rwkW with a H122 (on a conservative dyno too).

:yahoo:

[vyssbeast]

how much whine does this unit produce?? and how much less power would it make on an ls1 compared to an ls2?

[Ken]

how much whine does this unit produce??
I don't know quite how to answer this ... maybe: "The right amount" ???
It is less than the LS112 for the same amount of boost, but still very audible when giving it lots of pedal.
At 22,000rpm and producing >20psi in our test cell, it was >140db when measured 500mm from the rotors face (intake port) ... :shock:



and how much less power would it make on an ls1 compared to an ls2?
We don't have enough data to give a verifiable & conclusive answer. Based on everything else being identical, it could be assumed 5% less based purely on engine capacity. (6000cc - 5% = 5700cc).

[GTO LS2]

Thanks PM sent


Quote:
Originally Posted by HRT GTO
Ken, I am extremely interested in the HH122, are you able to advise approx power output on this model based on the details as per your website. I have an LS2 GTO so I would be looking at.........(copied from your website)
HH122-LS2-IC - LS2 intercooled utilising standard throttle body - $10,270.00 inc GST
*All kits include high flow injector upgrade as standard.
Obviously not including Tune / fitting etc from workshop of my choice. I understand tuning etc will differ but if you can give me an estimate I would appreciate it


Thanks

Based on the info shown in your 'details' panel (~260rwkW) I am assuming the exhaust (at least) is non-standard, so you should be looking good for a result ... in excess of 360 rwkw. I suspect fuel supply may be an issue, but we have a very elegant & legal solution for that too

We have had a standard engine (except valve springs), with 1-5/8" headers, 3" dual exhaust, & upgraded fuel supply consistantly pull >370rwkW with a H122 (on a conservative dyno too).

[lee ls1]

Call Damian or I on 03.9474-0900 and we can offer some names of companies who our customers report good results.

Thanks for the info! could you help me with some more info on a exhaust, just before i get one fitted i dont want to swap it when i get the blower (head & cam) would i be better of getting a twin 3in or another type of system?
also i read in street machine com last night that you are developing a head and cam pack to work with your new hh blowers, is this true? and will they be available for the late ls1 (vz fly-by-wire)

Cheers

Lee

[Ken]

Thanks for the info! could you help me with some more info on a exhaust, just before i get one fitted i dont want to swap it when i get the blower (head & cam) would i be better of getting a twin 3in or another type of system?
There are a wide variety of exhausts and a wider variety of results. We have found that 1-3/4" 4-into-1, into 2-1/5" full dual works quite well for most owners with our supercharger kits. I run 3" dual on the GTO as it gets used for testing some "big-ish" engines, but the Monaro has 2-1/2" and it is consistantly pulling >360rwkW. I recommend travelling in a "demo" car for at least 15 minutes before deciding on your exhaust supplier ... drone can be a killer. We still have some of our complete header & 2-1/2" systems in stock ... call for a quote.


also i read in street machine com last night that you are developing a head and cam pack to work with your new hh blowers, is this true? and will they be available for the late ls1 (vz fly-by-wire)
It certainly is true, and the durability testing is nearly complete. We are confident enough that we are casting ~50 sets this month for release in Feb '07. They will suit any LS1 or LS2 ... with L76 sometime later.

[lee ls1]

thats really good info, thanks you ken, and thanks for the fast reply!

looking forward to get intouch very soon in the new year for some dealers up here in the newcastle area for some harrop work, and the new head/cam pack's from you!

have a great xmas break

regards

lee

[GETUTED]

how much whine does this unit produce?? and how much less power would it make on an ls1 compared to an ls2?

Should sound something like this LS112.....
http://www.youtube.com/watch?v=vUOO9RK7z88 :woohoo:

[bullant]

Hi ken is the price for the HH122 LS $11,120 for the VZ L76?

[Ken]

Hi ken is the price for the HH122 LS $11,120 for the VZ L76?
The HH122 kit for a VZ (LS2 or L76) retails for $10,270. (The HH112 is $9500).

The LS1 version of the VZ, which uses the Hitachi electronic throttle body, is more expensive because because we manufacture many of the throttle body components ... it works out at $11,890 with an exchange throttle body. (The HH112 is $11,120).

Hope this helps.

[bullant]

The HH122 kit for a VZ (LS2 or L76) retails for $10,270. (The HH112 is $9500).

The LS1 version of the VZ, which uses the Hitachi electronic throttle body, is more expensive because because we manufacture many of the throttle body components ... it works out at $11,890 with an exchange throttle body. (The HH112 is $11,120).

Hope this helps.

Hi Ken are we able to by these superchargers derect from you? And are they easy to fit ?

[Ken]

Hi Ken are we able to by these superchargers derect from you? And are they easy to fit ?
You certainly can buy them direct, but many owners prefer to buy them as a package deal of "purchase, fit & tune" by an reputable installer who has done it before. It will often work out more economical & convienient as the installer/tuner will usually discount (the install or tune) to get the job.

Easy to fit ...??
A lot of the installers have commented that the kit is "excellent" because it is not difficult to install and everything is included. "Easy" is a relative term ... and having fitted quite a few, I am probably a biased judge ... but I consider it quite easy. Most workshops do the install & tune in far less than a day.
Email me via ken@harrop.com.au & I will send a reply mail with the install guide attached.

[blkV8]

Hijacking a thread here cause i feel its not worth starting a new thread for. Does anybody know what size exhaust ports an ls1 engine has and what shape.:hide:

[Ken]

Hijacking a thread here cause i feel its not worth starting a new thread for. Does anybody know what size exhaust ports an ls1 engine has and what shape.:hide:

Yes ... but what is it you want?
Capacity, cross-sectional area, linear dimensions, angular/polar map, equivilent diameter?
And at what position within the port?

[blkV8]

Yes ... but what is it you want?
Capacity, cross-sectional area, linear dimensions, angular/polar map, equivilent diameter?
And at what position within the port?

Just shows how technical i am :D
sorry mate i was just after the shape and size of the port when you are looking at the side of the head after the headers removed.

Thanks,
:thumbsup:

[Ken]

Just shows how technical i am :D sorry mate i was just after the shape and size of the port when you are looking at the side of the head after the headers removed. Thanks, :thumbsup:

LS1's (not LS6) are ~39.2 wide by ~33.0 tall & oval in shape (not elliptical). Imagine a 39.2x33.0 rectangle with 14.8 radii corners.
;)

[blkV8]

LS1's (not LS6) are ~39.2 wide by ~33.0 tall & oval in shape (not elliptical). Imagine a 39.2x33.0 rectangle with 14.8 radii corners.
;)

your a legend Ken.
Thankyou very much.

:thumbsup: :thumbsup:

[OUTAtheBloo]

Firstly i understand this is digging up an old thread :D

Ken

What size injectors do the HH122 kits come with, and what hp/kw (rw) do they support ?

If i was to fit a L76 crate motor to my VU, I would still need to buy the blower that suits the L76 motor, is that correct ? (maybe a silly question, rather be sure :D )

Dan

[Ken]

Firstly i understand this is digging up an old thread :D
Ken
What size injectors do the HH122 kits come with, and what hp/kw (rw) do they support ? If i was to fit a L76 crate motor to my VU, I would still need to buy the blower that suits the L76 motor, is that correct ? Dan

Injectors ... depends on the kit.
LS1 kits = 385cc
LS2 & L76/98 = 495cc
The limit will usually be the fuel supply (pump etc) dropping pressure before the injectors run out, unless the engine has other mods as well. Putting in bigger injectors to compensate for a loss in fuel pressure is not a good idea.

L76 into a VU ...
You would need to order a "special" that has the LS1 kit on an L76 manifold. It is the same price as the LS1 kit since the manifold costs the same to make, so we would just need to assemble it appropriately.

[OUTAtheBloo]

Thankyou for you reply Ken, appreciated !
Dan

[S2VYSS]

I know this is an old thread, but rather then start another one I thought I would dig this one up instead, what kind of numbers are you guys seeing from this blower on LS3s? Or is no one running these instead just using HTV?

[SupremeVT98]

A quick newbie Q...

Is it recommended to get a cam before going supercharger?

Or

Or save the money for the cam and put it towards the supercharger?

It's a 5.7, full exhaust & headers, CAI and Tune at the moment.

[CROSSEDUP]

I saved and got the whole lot done at once,tunes and retunes are bloddy expensive.

[Tre-Cool]

Sorry to dig up an old thread, but what maximum boost has anyone with a HH122 seen.

I'm running 1 with the 75mm pulley kit and cant get over 8psi, mostly sits around 6.5 I've put a new rear belt on and dont believe im getting any belt slip.

Car is cammed 6lt with a moderate sized 224/228 @112 lsa & stock heads. I would think i should be able to get around 10psi with this blower with the cam in the least.

[Ken]

Sorry to dig up an old thread, but what maximum boost has anyone with a HH122 seen.
I'm running 1 with the 75mm pulley kit and cant get over 8psi, mostly sits around 6.5 I've put a new rear belt on and dont believe im getting any belt slip.
Car is cammed 6lt with a moderate sized 224/228 @112 lsa & stock heads. I would think i should be able to get around 10psi with this blower with the cam in the least.

I know of a couple running 12-14psi from HH122's on L76's ... but with only mild cams.
Your 112LSA is probably contributing to the conservative boost - a lot of the puff is going striaght through to the exhaust.
I suggest placing a tacho on the supercharger input shaft and tracing it against the engine rpm ... it is likely you are experiencing some belt slip even thou' it may not be obvious. The 75mm pulley has less wrap so belt slip on a HH122 is not uncommon - go the 8PK or even 10PK.

[PDFAST]

how much aprox rwkw would i see with a Harrop HTV1900 supercharger
on my std vz 6.0l L76
with deffilopo big boy system 1.7/8 twinn 3 inch
replacement duel valve springs
has 252 rwkw now runs 12.46 112 mph at heathcote
cheers peter

[Tre-Cool]

It has the 8pk belt, Ken.

Cheers

Log from efilive.
http://www.vyssute.com/downloads/blower.PNG

[Ken]

Certainly no evidence of belt slippage in the trace.
Check the intake tract (filter etc), & if possible log the intake depression in the throttle body adaptor (I typically use the brake booster port). This will indicate if there is a restriction on the intake rather than a loss of boost.

[Tre-Cool]

Ken, Would the small hole, broken off nipple be the cause of my problems?

http://www.vyssute.com/downloads/IMG00117-20100101-1648.jpg

I've also included a pic of where my vacuam lines go.
http://www.vyssute.com/downloads/IMG00118-20100101-1649.jpg

[Tre-Cool]

I was just looking through my pictures and found the dyno sheet from when i had the blower on my VE (which has the same cam etc) when i removed the blower from the ve after about 3000km's the rear belt was fooked.

But when it was tuned on the dyno it was making the 10.5 psi at least before the belt started to slip in the high rpms.
http://www.vyssute.com/components/com_joomgallery/img_pictures//ve_ssv_a6_4/supercharger_dyno_1_20090915_1429172646.jpg

The only difference between the ve and my vy is the crank pulley, but it cant be that much different as im using the same 2240 engine belt.

[2ajmanvell82]

One of the idlers mite still b larger than on the VE and if the crank pulley isn't the 10% O/drive thats why its probably running close to standard boost?

[Tre-Cool]

One of the idlers mite still b larger than on the VE and if the crank pulley isn't the 10% O/drive thats why its probably running close to standard boost?
Same pulleys on both engines. Only difference is the power steering pump is a little futher to the right on the vy. (I'm using the later model VZ pump)

and mate and I are thinking the stock sized pulley maybe why i have less boost. i measured the crank diameter and came up with 19.5~20cm across

[VSFAN]

Hey there Tre-cool,
Check that the bypass valve is completly shut at WOT.
I have had this problem, it will be either the hose missing off the cannister,
or what i have experienced is the brake booster hose under the actuator rod not allowing full travel.
good luck.

[Tre-Cool]

Hey there Tre-cool,
Check that the bypass valve is completly shut at WOT.
I have had this problem, it will be either the hose missing off the cannister,
or what i have experienced is the brake booster hose under the actuator rod not allowing full travel.
good luck.
yeah i had this problem when i first put it on. wasnt making any boost above 2psi.

i went out tonight to test the actuator rod was going all the way down and removed the vacuam line while it idled. the blower drive started to moan which means it was no longer bypassing the drive. put vacuam line back on and it was quite again.

From my logs on the dyno, street and track it seems to make a consistant boost reading, so either the blower is not being spun to the correct rpm or theres a problem with the actuator opening to early?

[Ken]

Ken, Would the small hole, broken off nipple be the cause of my problems?
http://www.vyssute.com/downloads/IMG00117-20100101-1648.jpg

This is only a breather hole for the actuator. It should be as shown - no problems there.



I are thinking the stock sized pulley maybe why i have less boost. i measured the crank diameter and came up with 19.5~20cm across
It sounds like the crank pulley may not be the 10% overdrive that is typical for the 8PK kit.

[Tre-Cool]

dont really want to replace the crank pulley. do you have any suggestions on the ribbed pulleys sizes/ratios on the back that would increase boost to say 10.5 psi?

Cheers

P.s thanks for your help here Ken.

[Ken]

dont really want to replace the crank pulley. do you have any suggestions on the ribbed pulleys sizes/ratios on the back that would increase boost to say 10.5 psi?
Cheers
P.s thanks for your help here Ken.

I am unsure what the guys now stock, but I designed a range of toothed-belt rear drive pulleys that changed the ratio from 1.05:1 -> 1.19:1
Changing the crank pulley is the better option.

[Tre-Cool]

ok, one last question then. Is the same crank pulley supplied for both ve and non ve?

[Ken]

ok, one last question then. Is the same crank pulley supplied for both ve and non ve?

No.
VE has a shallower offset & is a different diameter than pre-VE.