Greddy intake throttle body

[Rand0b]

Hi all

what options are there for RB25 Greddy / Freddy intake throttle body

must be cable throttle 

q45 works

greddy adapter with stock throttle body 

I have heard that stock throttle body is best for street driving and is not restrictive for ~700whp level
 

[Duncan]

I don't know about 700hp, but I run the stock rb25 throttle body on a greddy copy FFP, and it makes 400kw

It does have drivability issues at very light throttle which I think is understand with MAP tunes with cable throttle and big cams

These days, I'd 100% run an electric throttle instead.

[robbo_rb180]

Previously ran a greddy and q45. Had poor drivabilty down low.

Either go stock with adaptor or DBW.
OR
Plazmaman plenum and DBW, highly recommend that as totally changed my car with lots more torque everywhere.

[Dose Pipe Sutututu]

11 hours ago, Rand0b said:

must be cable throttle

Any reason for this?

Once you go DBW you won't look back.

So much more control, better idle control (with AC, big cams, etc.), power control strategies, easier to tune, adjustable TP curve, list goes on.

No longer will you have a twitchy car with a larger than OEM throttle body.

I know many are against DBW because "it feels shit" but most are using their nan's Corolla as a benchmark.

[Rand0b]

 

@robbo_rb180 

agreed that is what I have heard for q45. So want to stick to something similar to stock 60-70mm max ( just want something better looking really ) overall for the greddy plenum.

@Duncan

Chequered tuning made 670 on e85 and  said they were very surprised it did that with stock TB and they actually ran out of fuel pump. 

@Dose Pipe Sutututu

Running Haltech 2000 (no DBW)

 

Edited February 21, 2023 by Rand0b

[Dose Pipe Sutututu]

Fair point, damn.