turbo opinions

[rx jamie]

for a road going fd running a single turbo conversion. which turbo would be best for retaining driveabilty ? im hoping for 500 bhp at the fly. my choices are t04, super t70, t78 or t88.

your feedback is appreciated

thankyou.

[Dan Norton]

T88 is the biggest.....however, it has the biggest amount of turbo lag, but for the strip.....its awesome.

I\'m going t78, big turbo with a bit of lag aswell.....but i want 500fly hp also.

I think the big t04r\'s can get near 500 also.

Ross has a t88 on his drag car.......that ran a 11.2 1/4 with a crapped out clutch


Dan!!

[BlitzBoy]

I thought the HKS T51 KAI in Geoffs car was bigger, I could be wrong that ran 10.61 @ 130plus.

Try the R85 by KGPARTS, that produces approx 450 plus @ wheels at 15psi on normal fuel.

[Carl]

Run a Garrett GT 35/40.
Regards
Carl

[Dan Norton]

Out of his list the t88 is the biggest

Dan!!

[Icesurf3r]

I\'m running a T88 on mine - Does take ages to spool, think mine starts to spool @ just over 3000rpm and reaches full boost around 5500rpm.

So if your caught with ur pants down in the wrong gear, then is like a slug crawling through treacle because of lag.

But once it does start to spool

[rx7veilside]

as carl said get the gt35/40 mine starts boosting at about 2800 and then bosh doeasnt run out of puff at all

[20B_boy]

Originally posted by Dan Norton
Ross has a t88 on his drag car.......that ran a 11.2 1/4 with a crapped out clutch

I think when Ross ran 11.3 it wasnt a T88, think it was a TA45 or simliar. Pretty big still tho Sure Ross will fill in the details.

GT35R will make it I would guess but it would need a decent port and some boost. Max\'s makes 370ish at the wheels at .95 bar but having said that Max\'s is a regular street port and is tuned very conservatively, both timing and fuel...

Buy a turbo that will suit your driving style and cars application - obvious statement but there are a lot of people buying big turbos for the sake of it with little idea of what the setup will really be like to live with on a daily basis. I\'m lucky in having been able to drive a number of different setups via RE:Worx, including Geffs T51 more than most. I\'d suggest any one looking for a new turbo tries and drives as many turbos as they can before making an informed choice. Bigger is certainly not always better, so try before u buy

HTH,
Rich

[Dan Norton]

Ah sorry, i thought it was a t88 he had on....my mistake:)

The t88 is hooooooge tho:D


Dan!!

[gsb876]

Turbo power table, granted not made for rotaries but just a guide.

[PETE SMITH]

I\'ve a Garrett GT35/40.
Drive it every day for work-motorway shortblasts and town driving.
At a safe boost controlled level of around 0.9bar, it pulls from the high 2000\'s for ever.( I think my Dyno was around 320 @ the wheel...so MAX\'s 370 @ the wheel kills me!!!)At the Fly is more!
Mega power, a la Geff n co. suits the record breakers...i\'m totally jealous of this..if only i had 2 FD\'s..........!!
:p
Pete

[20B_boy]

You want this for doing your rounds Pete?!

[PETE SMITH]

Rich,
Flames n fumes death may rear the Shipman debate!!:p
Pete

[clive]

Hi Jamie,

As per the start of this thread that you wanted a driveable road car,  listen to what Pete, Carl and what l am about to suggest then repeat after me --

GT35, GT35, GT35, GT35, GT35, GT35, GT35, or if not  you could even try a GT35!.

Seriously these turn the Rotary into a very very faaaaaaaaaaaaaast  tractable road car, making it a predictable pussy when you want it and then a Looney monster if you need it !!!! .

 I still remember setting up my three stage boost gauge for the first time giving a Max of 1bar with a 35 fitted on  a clean dry straight road with good Eagles on the back and l couldn\'t put the wheels down till l got to 4th !! :rollin :rollin :rollin

Please don\'t go fitting any of those T04 tractor turbo\'s when for the same money you can have an upto date Turbo that is ideal for Rotarys.

[jinx]

So while I am editing my wish list. Does the GT35 require major modification to fuel, cooling and exhaust systems to deliver Clive\'s promise? (The wish list is attached to a budget.)

Had always assumed single turbo RX\'s were less tractable for \'normal\' use but the more I read on here, the more the double plumbing seems to be an unnecessary complication which make s me wonder why Mazda adopted the route in the first place.

Not too much recent time with turbochargers and things have obviously come on a bit since the Janspeed Sierra Turbo I ran years ago. That was prone to "slug in treacle becomes speeding bullet" transitions. These were not always predictable, appropriate or welcome but endlessly entertaining or terrifying in roughly equal measure. (It was the obscene appetite for compressor blades and other components [like body shells] that put me off the turbo experience for such a long time.)