daredevil Posted February 2, 2005 Share Posted February 2, 2005 Does anyone know anything about these turbos. Are they ball bearing, when do they come on boost and on which motor, A/R rations and size of impellers stuff like that. Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/ Share on other sites More sharing options...
Beer Baron Posted February 3, 2005 Share Posted February 3, 2005 they are not ball bearing. they are f$#king big. they will not come onto boost until quite late in the rev range (unless you have a 3 litre RB26 for example). but when the do hit boost it'll be one hell of a ride... for the A/R and wheel sizes type T88-H 34D into google. Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1192765 Share on other sites More sharing options...
Bl4cK32 Posted February 3, 2005 Share Posted February 3, 2005 (unless you have a 3 litre RB26 for example). lol...that would be a rb30 then..not a 3 lt rb26....:headspin: Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1192811 Share on other sites More sharing options...
rev210 Posted February 3, 2005 Share Posted February 3, 2005 or a 3 litre osgiken kit Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1192818 Share on other sites More sharing options...
doridori32 Posted February 3, 2005 Share Posted February 3, 2005 or a 3 litre osgiken kit waste of money, build one locally . You will see boost hitting you hard around 5,500RPM on a standard RB26. Do NOT forget you can rev it to around 9,000RPM anyway. You have heaps of rev's left. Get it and DONT look BACK :wassup: Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1192842 Share on other sites More sharing options...
daredevil Posted February 3, 2005 Author Share Posted February 3, 2005 Yeah my car is a 5.7 litre stroker i posted it here cause you guys know more about turbos than commodore people. So should i see boost around 3500rpm it is a heavily worked engine makes 315hp at the wheels as it is Im also lookin at another garret turbo it has a 0.76 front and a 1.08 rear it doesnt have a model number would this be similar to the T88 i dont really kow that muchabout the numbers and stuff Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1192924 Share on other sites More sharing options...
FATGTS-R Posted February 3, 2005 Share Posted February 3, 2005 Heavily worked? Forgive me if I am wrong but dont the 5.7litre comordores have about 300rwhp as standard? Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1193275 Share on other sites More sharing options...
rev210 Posted February 3, 2005 Share Posted February 3, 2005 What specs are you going to build the new 5.7 motor to? Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1193304 Share on other sites More sharing options...
Beer Baron Posted February 3, 2005 Share Posted February 3, 2005 lol...that would be a rb30 then..not a 3 lt rb26....:headspin: the reason I said "3 litre RB26" is so people understand that I'm talking about a GTR engine, modified to 3 litre capacity, not a RB30 commodore motor which has crap heads.... Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1193309 Share on other sites More sharing options...
Beer Baron Posted February 3, 2005 Share Posted February 3, 2005 Heavily worked?Forgive me if I am wrong but dont the 5.7litre comordores have about 300rwhp as standard? The fact that he's said 5.7litre stroker leads me to believe he's talking about an older 5 litre holden V8 (ie. not a 5.7 LS1) that has been stroked to make it 5.7. To answer the actual question, I really don't know that a T88 would suit your application. What's the max rev limit? how much power do you want from it? I reckon you might be better off with a set of twins. a nice little T28 of some kind per bank would be good. Maybe even a twin HKS GTRS set-up... It will give you a chance to beat some GTRs.... (in a straight line anyway...) Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1193315 Share on other sites More sharing options...
7heavn Posted February 3, 2005 Share Posted February 3, 2005 people usually go with a set of twins rather then a big single on v8's as the manifold setup is easier to design and fabricate . Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1193355 Share on other sites More sharing options...
daredevil Posted February 3, 2005 Author Share Posted February 3, 2005 Fitting the twins together in the engine bay is going to be real hard as it is a small engine bay. Could you recomend another single turbo to use. Yeah it is an older 308 stroked to 355 and yes it is heavily worked everything is forged blueprinted balanced best of everything you can by for that motor the only reason it makes not much power is because it runs low compression and a small cam to prepare for forced induction Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1193504 Share on other sites More sharing options...
Roy Posted February 3, 2005 Share Posted February 3, 2005 Ohh, more details:) As a joke i looked at what it would cost to build a stroked 304/355 engien with alloy efi heads, twin throttle inlet with some nice internals...the price scared me when you consider you can get a Nascar crate engine for 15k with good hp:) Id be inclined to go with a big centrifugal blower, especially if the engine bay is tight. You can stick with some nice pipes, much lower engine bay temps, can still run intercooler, and the Vortex blowers work wonders:) If it must be turbo then id say stick with singles set forward in the engine bay, the only way you will get a big single in there is with it mounted really low in which case the oil return, manifolding will still be a nightmare, or say goodbye to a bonnet and mount it high and proud, perhaps throw a hornet scoop over it:) But small singles, they will also work better with more crude log manifolds:) Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1193585 Share on other sites More sharing options...
R31 GTS Posted February 3, 2005 Share Posted February 3, 2005 in my opinion a supercharger is a better option on such a big engine, the reason for this is to make instant power you need lots of torque downlow, and a t88 doesnt make much torque below 5 grand, for this reason alone, id go with a supercharger, as roy stated a good centrifugal supercharger should provide a good torque band between 2 grand and onwards, but whatever you choose good luck Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1193727 Share on other sites More sharing options...
DoughBoy Posted February 3, 2005 Share Posted February 3, 2005 You'd be better off getting a ball or plain bearing Garrett turbo, the lack of exhaust housings sizes in the Trust range limit their applications. You might find you need an exhaust housing larger than what they offer, and both 1) buying a larger housing and 2) having one available are two big reasons why I'd skip out on the Trust unit. Don't get me wrong, great turbos that make great power.... but they are aimed at engines with alot lower capacity than that. Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1193979 Share on other sites More sharing options...
R31Nismoid Posted February 3, 2005 Share Posted February 3, 2005 in my opinion a supercharger is a better option on such a big engine, the reason for this is to make instant power you need lots of torque downlow, ..id go with a supercharger, as roy stated a good centrifugal supercharger should provide a good torque band between 2 grand and onwards, but whatever you choose good luck centrifugal blowers are similar to that of turbos... as they are not "instant power" as they spool kinda like a turbo. Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1194105 Share on other sites More sharing options...
rev210 Posted February 4, 2005 Share Posted February 4, 2005 daredevil, I think the turbo idea is a good one. The blowers of any kind are not a patch on a good turbo setup. 1,000hp is more than the 308 is going to live with for vey long at all. I'd be aiming at a turbo to deliver around 600 engine hp. This way your going to be able to get excellent response with very minimal lag. As others have mentioned stick with the garret turbo's, more options to get the right fit. Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1194722 Share on other sites More sharing options...
race_snooze Posted February 4, 2005 Share Posted February 4, 2005 top mount twins and have them cut through the bonnet I have seen it done here for the summernats and it looks phat Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1194754 Share on other sites More sharing options...
fsmout Posted February 4, 2005 Share Posted February 4, 2005 just agreeing with R31Nismoid, i think a vs trim Vortech blower would be the best option for you from CAPA Australia. They work very similar to turbo's and they are very small package for easy installation. You also wont have as much heat within a confined engine bay....but they are expensive Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1194918 Share on other sites More sharing options...
rev210 Posted February 4, 2005 Share Posted February 4, 2005 The blower is not as good as a well selected turbo. The only advantage is plumbing. Heat in an engine bay is a natural by product of power generation. A turbo beanie and some thermal tape fixes most of that. Link to comment https://www.sau.com.au/forums/topic/63398-greddy-t88-h-34d/#findComment-1195115 Share on other sites More sharing options...
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