Mazda Rotary Club

General => Rotary and General Chit-Chat => Topic started by: H3NRY on April 03, 2015, 08:45:26 PM

Title: SINGLE TURBO CONVERSION HELP
Post by: H3NRY on April 03, 2015, 08:45:26 PM
Hi , i am looking to remove my stock twin turbos and replace with a single turbo.

can anyone help me with kits.. whats the best/most favoured conversion kit and where to buy such parts...

many thanks.  O0
Title: Re: SINGLE TURBO CONVERSION HELP
Post by: clive on April 04, 2015, 10:02:15 AM
Your question for which turbo and related parts you will need will be better answered if you have a horsepower figure in mind and  if the car is going to be road, track or strip.
Title: Re: SINGLE TURBO CONVERSION HELP
Post by: H3NRY on April 04, 2015, 06:22:54 PM
apologies, i'm looking for 300bhp for fast road and occasional track day use.
Title: Re: SINGLE TURBO CONVERSION HELP
Post by: memski on April 04, 2015, 09:36:00 PM
For 300hp why bother swapping to a single unless your twins are knackered. A remap on a pfc and maybe a bigger fuel pump should give you a reliable 300hp with the low end grunt of sequential twins.400+hp is another story...
Title: Re: SINGLE TURBO CONVERSION HELP
Post by: clive on April 04, 2015, 09:40:45 PM
You should be able to achieve this on your stock twin turbos but if you want to go single then you need look no further than a Garrett GT35 to achieve this power and it will give you super smooth acceleration

You will need a better fuel pump like a Walbro 255 in tank (this will support this power with no problem)

Also a fuel regulator and a 1680 fuel injector and rail set up .

Make sure you get a decent sized intercooler preferably fitted with the radiator in a V mount formation

Lastly you will need a mappable ECU and the favoured ECU is an Apexi ECU

Just so you know what this will cost , adding this all up comes in at around 3k with you doing the work other than the mapping to get the engine running after the conversion
Title: Re: SINGLE TURBO CONVERSION HELP
Post by: H3NRY on April 05, 2015, 12:21:22 PM
i am in the mind set of swapping to a single turbo would cut down on the amount of vacuum lines, resulting in slightly better reliability..i like the idea of one bigger turbo.

Title: Re: SINGLE TURBO CONVERSION HELP
Post by: boosted on April 05, 2015, 12:29:40 PM
Theres there always the non sequential conversion where the 2 turbos perform as 1 and all vac lines simplified....but if your not hunting bigger power and more importantly if aint broke.....enjoy the sequential turbos as mazda intended with low down power....
Title: Re: SINGLE TURBO CONVERSION HELP
Post by: H3NRY on April 05, 2015, 06:38:59 PM
i am hunting for slightly more power 300-350 range...
the car is currently in limp mode (still under investigation) and i know the exhaust manifold is leaking from the sound and fumes i am getting coming from that area, instead of putting money into fixing up the twins and poking around in the 'Rats Nest' i would rather buy all new parts for her to be a single turbo along with removing some of vacuum lines...i struggle to get my head around everything that is happening and involved in that :P

Title: Re: SINGLE TURBO CONVERSION HELP
Post by: Ed_RX7 on April 05, 2015, 06:47:14 PM
I can provide you with e of my kits and custom spec a turbo for you so that you can meet your needs rather than having to settle for something off the shelf!