LGT Turbo Upgrade ?

passing180 · Postby **passing180** » June 21st, 2015, 3:20 pm

I have a 2005 LGT with a VF38 stock..

Looking to upgrade Turbo & Injectors (already upgraded fuel pump)

What do you guys recommend ? Hoping for something direct bolt on ... Or minimal modifications

Lance · Postby **Lance** » June 21st, 2015, 6:43 pm

Is your engine built?

What are you looking for in terms of power? A responsive setup or top end output?

passing180 · Postby **passing180** » July 19th, 2015, 6:29 pm

Did not forge out.
Looking for more top end but nothing too laggy and i want to keep stock TMIC

Currently running 21PSI on stock vf38 turbo

Ecutek Tuned on super with water meth

Lance · Postby **Lance** » July 20th, 2015, 4:56 am

21PSI on the 38 is just at the limit of that turbo. You're probably already a bit out of the efficiency range.

I would personally recommend around an 18G spec turbo. That should give you a nice balance of response and topend without pushing the stock block too hard.

I would also recommend around a 750CC Injector Upgrade. But that really depends on your tune, current IDC and the nozzle you're running on the meth kit. But 750CC will give you a good amount of headroom.

As for brand, You can check out Blouch, FP, Tomioka, Kinugawa.

I would personally recommend the FP HTA71. FP has a sale on right now and the price is very good. It has great response and excellent topend. I'm not sure if its a bolt on application for the legacy though. If not, the other manufacturers would have something for you.

http://www.forcedperformance.net/mercha ... =WRX-Turbo

Ted_v2 · Postby **Ted_v2** » July 20th, 2015, 6:44 am

I agree with what he said.
Also when you doing the turbo upgrade it's also a good idea to upgrade the downpipe. And install a wideband. Check back boost lines and redo if nessary. Secure ect.

TheBoostLord · Postby **TheBoostLord** » July 22nd, 2015, 4:48 pm

vf38 means 5eat. Keep in mind turbo response with automatic as well as torque limit on the tranny. I have a vf37 in my 5eat legacy and maxing out stock injectors @ about 18psi,with methanol. Sometimes i get a slip on 1st to 2nd gear change. I will be doing a valvebody mod in the near future to ensure the tranny holds up to my power level.

Postby **Tile Expression Ltd.** » July 24th, 2015, 9:26 am

tomioka 20g twin scroll will be a nice upgrade.

750cc injectors will be able to work nice with this...you can check DW750 injectors (side feed)

had this on mine and it wasn't laggy at all..sold it to a guy and now he is doing around 320whp with a conservative tune because his engine is not forged.

but I've seen this turbo do 400whp on ej20 with meth.