Tocchi Sandtrap Motorsport Donating Members 2,055 Member For: 16y 1m 1d Gender: Male Location: Perth Posted 23/02/10 01:02 PM Share Posted 23/02/10 01:02 PM currently got a T51 (journal bearing) with a 1.22 (rear A/R) to go onto my 4L (stock head and cams, but with the atomic race valve springs).talking to a few people, they say this might be a tad too large.so for those running T51s on their 4Ls, whats the turbo specs you use, what power you pushing, and what rpm does it hit max boost? Link to comment Share on other sites More sharing options...
SPIKO Gold Donating Members 1,924 Member For: 19y 8m 18d Gender: Male Posted 23/02/10 10:06 PM Share Posted 23/02/10 10:06 PM You will not be happy with a Journal Bearing T51r & 1.22 buddy, full boost will hit between 4300-4500 depending on what gear and load your running auto/manual etc... Link to comment Share on other sites More sharing options...
Tocchi Sandtrap Motorsport Donating Members 2,055 Member For: 16y 1m 1d Gender: Male Location: Perth Posted 24/02/10 01:20 AM Author Share Posted 24/02/10 01:20 AM its for my capri. running Powerglide, currently got 4.56 diff gears (need to go taller, something like 3.23 approx). and transbrake of coursejust wondering even though its going on a transbrake'd dedicated drag car (never will see the street etc),is the rear A/R too large, and will I need NOS to get it onto boost on transbrake? ... because im trying to avoid using Nos.would you recommend a 1.06 rear housing or similar then? Link to comment Share on other sites More sharing options...
SPIKO Gold Donating Members 1,924 Member For: 19y 8m 18d Gender: Male Posted 24/02/10 01:48 AM Share Posted 24/02/10 01:48 AM (edited) Mate if it is for your Capri, stay with the 1.22 buddy, also the Journal bearing version will be easier to maintain and service just keep an eye on it..The necessity of NOS will depend on your converter, I suggest Mechanical diode 3800rpm as a minimum...Good choice all in all...You won't be disappointed for this application... Edited 24/02/10 01:53 AM by SPIKO Link to comment Share on other sites More sharing options...
Tocchi Sandtrap Motorsport Donating Members 2,055 Member For: 16y 1m 1d Gender: Male Location: Perth Posted 24/02/10 01:57 AM Author Share Posted 24/02/10 01:57 AM yeh I chose the oil cooled (no water cooled) due to ease of servicing and no water lines etc.it spools a tad later, but that's ok.my car is currently at Allfast Convertors now, we are just waiting on my Atomic flexplate to arrive (chrome moly goodness mmmm)its getting a coverter similar to Rod Sammits EL XR6T (motec, big turbo, china manifold, so forth) that has been running 9s and now 8.80 .. the car still has door trims.so I know it should be alright Link to comment Share on other sites More sharing options...
SPIKO Gold Donating Members 1,924 Member For: 19y 8m 18d Gender: Male Posted 24/02/10 01:59 AM Share Posted 24/02/10 01:59 AM Keep us posted champ, I am awaiting with great enthusiasm Link to comment Share on other sites More sharing options...
Tocchi Sandtrap Motorsport Donating Members 2,055 Member For: 16y 1m 1d Gender: Male Location: Perth Posted 24/02/10 02:11 AM Author Share Posted 24/02/10 02:11 AM cheers it shall be interesting. all depends on if the cars chassis can take it. ran 8s with 650 fly HP with the clevo 383... the torque of this turbo setup may kill it hahabtw would the 3" comp cover on the T51 be ok?it has no markings (as it has been polished), except for M2.the inducer is 76mm lol.. guessing its a 0.7 A/R front?havent removed the comp housing yet to see how big the turbine actually is, but it looks like its gonna be a huuuuge exducer on it haha Link to comment Share on other sites More sharing options...
SPIKO Gold Donating Members 1,924 Member For: 19y 8m 18d Gender: Male Posted 24/02/10 02:19 AM Share Posted 24/02/10 02:19 AM You may as well start as is Tocchi, the next immediate step would be the extrude honing of your current cover... However I anticipate that you will out grow this step and it's necessity quite quickly if your drive line holds up.... Link to comment Share on other sites More sharing options...
dalts Member 755 Member For: 18y 6m 29d Gender: Male Location: brisbane Posted 24/02/10 06:19 AM Share Posted 24/02/10 06:19 AM hey tocchi,t51 are usually .72 front covers which are 4",good luck with the project should run some good numbers!!cheers lee Link to comment Share on other sites More sharing options...
Tocchi Sandtrap Motorsport Donating Members 2,055 Member For: 16y 1m 1d Gender: Male Location: Perth Posted 24/02/10 09:40 AM Author Share Posted 24/02/10 09:40 AM straight. mines 3" front, T6 exhaust flange, and 6 bolt dump flange Link to comment Share on other sites More sharing options...
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