can anyone help me out with the good and bad on this kit(value for money etc) im semi keen on it maybe it is a forum member stretch chime in anytime.http://www.ebay.com....d=p5197.c0.m619
cheers
2dr
strata kit
Started by
_2DR_
, May 01 2013 09:00 PM
80 replies to this topic
#2
Stinga
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Posted 01 May 2013 - 09:11 PM
yeah thats stretch's, im pretty sure they breed at his place....
#3
_Bomber Watson_
_Bomber Watson_
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Posted 01 May 2013 - 09:11 PM
Add doesnt mention which strata kit it is....But the inlet mani looks like a 2?? Good for frOck all IMO....I've seen a 2 inlet mani cut in half you cant fit your middle finger in the ports...Showing it your middle finger is more worth while.
For that money and a bit of metal fab you could build a nice blow through setup that would blitz the frOck out of that any day of the week.....But theres no need to hear me rant or ask "how?" because it has been covered at length on this forum previously.
Stretch??? Where art thou? Confirm the inlet mani and agree/dissagree with me 
Cheers.
#4
Stinga
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Posted 01 May 2013 - 09:12 PM
yeah thats stretch's, im pretty sure they breed at his place....
#5
_2DR_
_2DR_
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Posted 01 May 2013 - 10:28 PM
i think it is a strata 2 also
in the pics it looks to have small ports on the inlet manifold
#6
TerrA LX
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Posted 01 May 2013 - 11:22 PM
Is there an echo in here?
#7
_stretchlc_
_stretchlc_
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Posted 02 May 2013 - 12:07 PM
Its mine.........its a strata 2 kit.......I have 2 Strata 5 kits here also that ARE NOT for sale aswell. The differences between the 2 inlet manifolds is like night and day. I dont know if I would go so far as flipping these kits the middle finger, lets just leave that to those guys that are running these kits and seeing off much crankier sounding V8's at the drags.
Bomber probably is'nt the best person to ask what he thinks of these kits, and has never run a Strata Kit himself.......so I guess his comments are based on turbocharging "theory" and not personal experience. I have, and they perform very well................The're simple in construction, are robust and I'd chose this way personally to make good power in a Holden 6 over a Naturally Aspirated engine anyday (yes, I've been down that road a few times too).
Ill upload a few pics of the difference in inlet manifold sizes between the Strata 2 and Strata 5's.
Kits do seem to breed at my place for some reason Stinga.......I have a rather huge "collection" of these bits stored, that I've hoarded over the years........though I must say, the stock levels are drying up really fast and I'll be out of all my collected Strata Gear really soon.
I also have a set of Twin 1 3/4" HIF SU's on a Mike Vine Turbo V Band Manifold for sale aswell in another listing on Ebay now too for anyone thats interested. Just click on my other items icon.
#8
_stretchlc_
_stretchlc_
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Posted 02 May 2013 - 12:29 PM
The biggest noticable differences between the 2 series of manifolds are the fact first up , and its easily noticable, is the Strata 5 manifold has a much larger plenum ( 7 ribs for the 5 and 4 for the Strata 2). The inlet manifold runners are not cast divided, and lastly the ports are much larger on the Strata 5. In saying that, the Strata 2 manifolds are plenty thick enough to open up the inlet ports more and match port to the inlet ports of the head. I've even seen a few guys that run these have to top milled from the plenum and have a larger boxed alloy section fabbed up and re-welded onto the top of the plenum for a much larger increase in plenum volume.
Hope these pics help anyone else trying to identify what the differences are between the few series of Garrett Strata Manifolds. I forget that from about 20 metres away I can tell the differences between them easily.
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#9
_mervex_
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Posted 02 May 2013 - 04:28 PM
HI, stretch, as i was involved in the development of these kits and others,i totally agree with EVERYTHING that you say.
varios carbs , boost levels and turbo sizing were other differences (=torque output) between the different strata kits.mervex
#12
Hybrid
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Posted 02 May 2013 - 10:34 PM
You can certainly get a Holden 6 moving with one of these kits. My best mate ran 11.0@125mph with a Strata 5 kit in a LJ Torana. I am pretty sure you could easily run in the 12s on a low budget build with a Strata 2 kit.
#13
u1 71
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Posted 03 May 2013 - 10:23 AM
what"s the power difference "gain" between the two manifolds,also they used the bigger manifold on the vc turbo commodores,i"ve been told someone used to re make them
#14
_stretchlc_
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Posted 03 May 2013 - 11:37 AM
Well...........the difference in power between the 2 manifolds is night and day...........a friend of mine that went from Strata 2 to Strata 5 manifolds with no other changes except a little more timing and fattening the fuel up a tad, dropped a full second over the 1/4 mile.........which probably equates to about an easy 40 hp improvement. I heard a rumour that the new owners of CRS (castlemaine rod shop) have the original moulds to remake these manifolds again and put them out into the public for sale. Just a Warning though........They WILL NOT be cheap.
EZE-10S used a Garrett Strata 2 kit on their LJ Torana with a modified Strata 2 inlet manifold with increased plenum volume and a big 4 barrell carb and pulled low 10 second 1/4's. The real beauty of these kits is their simplicity and robustness, they are pretty industrial in their construction and make easy power. For me, I love the notion of having what sounds like a very mild, quiet engine in a street car that is super sedate, easy to drive off boost and has pleasant manners with nothing gaping out of the bonnet..............BUT...........when it comes to having alot of fun (on the strip of course), it's a totally different ballgame and engine.
For anyone trying to source a Big Plenum Strata 5 inlet manifold, all I can say is good luck trying to get your hands on one. In the 15 years I've been playing with these kits, I have only ever came across maybe 5 manifolds...one is on my Klunker engine, another on is in the pics I posted above, I know of another one I sold to a fellow Torana owner, who has also came across and purchased another one for pretty serious cash............and the only other one I know of is on a members car here and the dudes name is Deano.
Another thing the strata 5 manifold seems to create is a faster boosting engine over the smaller manifold. Its also interesting to note that the exhaust manifolds also have differences (some might argue they are all the same) with the main difference being number 4 and 5 exhaust ports on the manifold dont have a port divider in the manifold............these were designed as a true split pulse manifold to feed one bank of 3 cylinders into one entry point to the split pulse turbine housing and the back three cylinders to feed the other entrance of the scroll. So as a result exhaust ports 4 and 5 shared a common outlet into the turbo, all the other manifold exhaust ports were separated with port dividers.
I've owned and seen both exhaust manifolds over the years and noted that some of the wastegate ports on the underside of the manifold are also slightly different (thicker webbing around the gate port)...............I think some of the earlier manifolds has a problem with cracking under where theturbine bolts to and travelling into where the waste exhaust gas exits the wastegate.
I would also love to pick Mervex's brain a little if I could, he must have some awesome facts, knowledge and advice to share. Would be great if he could chime in with any info he may have collected over the years to share here. If it is Dave Inall (mervex) that would be even better, as he's a wealth of knowledge from what I hear.
I dont know if its from the original link that was posted for my add thats on ebay, but I have noticed a huge explosion of watchers in the last day and a half..............its up to 82 as of right now.......wow! that alone kinda blows me away. Anyway, if anyone has any more questions about these kits please feel free to ask away.....I;m happy to try and answer as best I can................cheers
#15
_stretchlc_
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Posted 03 May 2013 - 11:58 AM
I'm thinking mervex's name is Gary.....which doesnt sound like Dave at all..............anyway, can you share any info on these kits please mate?
#16
_mervex_
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Posted 03 May 2013 - 05:29 PM
Stretch,if you are thinking Gary G,no i am not but i knew him well.I worked for his brother in law and we helped NGM in many ways.I did know David Inall too. The manifolds were origanally cast byDrome Pattern Works at airport west but i don't think they are there anymore.As you said,they were pretty effective kits,in their day.We did not have cad design or FEA or 4 valve heads or a huge knowledge of electronic engine managements like today.The kits were designed initially as a bolt on kit for 6 cyl street cars,used for towing etc.The high perf side of things came a bit later!
What i really liked about the kits was that i could drive my car as much as i wanted to with no restrictions.I fitted a strata 2 (sort of ,with 14 psi boost) kit to my car in 1978 on a stock 186 with 100,000 MILES
on the clock.I could use it in peak hour traffic easily or head to Heany Road Sat night and play. I never broke a diff or axle but the clucth was a problem in top gear sometimes.
I am in the process of fitting similar to my 76 lx hatch but i am going to ramp things up a bit and use it for track days.We did play with cams a bit and i found a pretty good one from wades.We fitted and tuned kits on XU1s,LXs,etc even some of them new Commodores ,all sorts of cars.To say turbos only belong on doof doofs is dumb ,as we were fitting them to new toranas long before imports were around.mervex
Edited by mervex, 03 May 2013 - 05:30 PM.
#17
_ljxu1torana_
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Posted 03 May 2013 - 11:09 PM
i like these threads it makes me very happy.my intake was an stratta 2 but mike vine modified it with a bigger plenium same size as the number 5.i brought the manifold from mike vine about 3 years ago and cost me about $450.
#18
u1 71
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Posted 04 May 2013 - 02:46 PM
ngm had 5 strata kits for the holden 6,strata 1 and 2 were the same except strata 2 had the waste gate, strata 3 had the twin carbies with the small manifold, strata 4 had the 45 mm weber carb and big manifold,strata 5 had the 48mm weber carb and serck oil cooler,and bigger turbo,which kit do you have stretch,i have the stage 5
#19
_stretchlc_
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Posted 04 May 2013 - 07:16 PM
Which kit ??.....hahaha......I've got 3 of them.............The one currently on my engine is none of the above as its set up with Big Plenum Inlet, a 4 Barrell Holley V Band adapter and a 650cfm Double Pumper Ultra series Billet Carby........I'm still running the 42mm Garrett NGM Wastegate though.
I have proof that some inlet manifolds in the Large Plenum 7 rib type are actually plated as "Strata 2A"...................others I have seen have been ID plated as Strata 5............I have no idea why some of the Large Plenum manifolds are plated differently, but it kind of goes against what you say in your post above Peter, please don't think for a second that I disagree with what you've said and maybe we'll never know why NGM decided to do that.
I uploaded a heap of good info that I scanned from genuine Garrett and NGM Information Sheets and what not.....................I'll try and re-post the link here for those that haven't ever seen it. Its maybe worth downloading all the info and saving it for those interested. I actually saw someone selling similar info on Ebay a few times and wondered if it had been downloaded from the internet, printed and put up for sale on ebay......pretty sad if that was the deal.
#20
_stretchlc_
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Posted 04 May 2013 - 07:23 PM
Here is a PDF that's available to download of all the info scanned that I have been able to gather on these kits over the years.
#22
_stretchlc_
_stretchlc_
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#23
Uncle Chop Chop
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Posted 04 May 2013 - 08:30 PM
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#24
_stretchlc_
_stretchlc_
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Posted 04 May 2013 - 08:34 PM
Damn....I can see it perfectly....ok I'll try again
#25
u1 71
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Posted 05 May 2013 - 10:04 PM
if you go on the mike vine website and click on retro then click on holden 6 turbo you will see the brochure that ngm garrett brought out for the stage 2 kit,which lists all the parts used and power/torque graphs,they had a brochure for all of their kits listing the differences,thanks stretch for your info and knowledge,mervex did you work at bensons
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