Rev1 Turbo

[IMR2T]

Does the standard ECU limit my potential power output?

Is 250bhp realistic with following mods -

- HKS Mushroom
- Mongoose exhuast no cat
- FCD
- Pro Spec II b boost controller
- XS 4" Intercooler

[craig]

Yes, providing engine is healthy

[IMR2T]

Is there a guide so I can check whether my TVIS is blocked off or not?

Is it best to block it once a boost controllers fitted?

[gmac90]

Ive herd it is best to block it off... If u seach for TVSV Im sure it will b about.. Intrested to see what hp u get as im in the middle of building my rev1 tubby with similar mods

[IMR2T]

bu88er is it TVIS or TVSV?

What do I have/need to block off on a Rev1?

[gmac90]

http://www.imoc.co.uk/forums/viewtopic. ... a28350e325

http://www.imoc.co.uk/technical/article/boost.htm

[IMR2T]

Guys my boost controller allows me to hit 1.1/1.2bar on the low setting.

Is this ok on a Rev1?

Ive no way of knowing if clutch or Pistons have been upgraded by the last owner.

[Peter Gidden]

Guys my boost controller allows me to hit 1.1/1.2bar on the low setting.

Is this ok on a Rev1?

Ive no way of knowing if clutch or Pistons have been upgraded by the last owner.

Fuel maps stop at about 16psi so you're at the limit if ecu capabilities.

TVIS needs gutting/blocking off at 300/320bhp or more.

[IMR2T]

Ah ok, would hate to think what happened when the last owner selected hi boost!

Is there a picture of steps regarding blocking TVIS? Not that I think I nd it at my bhp?

[Peter Gidden]

Is there a picture of steps regarding blocking TVIS? Not that I think I nd it at my bhp?

Not that i know of. Remove inlet manifold, remove TVIS plae. Remove spindles and plates. Weld up spindle holes. Block up vac hose to TVIS. Refit.

[2mad]

Guys my boost controller allows me to hit 1.1/1.2bar on the low setting.

Is this ok on a Rev1?

Ive no way of knowing if clutch or Pistons have been upgraded by the last owner.

This is far to much for a daily driver .


Just pull the hose and cap it off to the tvis.. leaves it open


The vsv just remove the hose from the actuator and cap it off .

[IMR2T]

Is there a picture of steps regarding blocking TVIS? Not that I think I nd it at my bhp?

Not that i know of. Remove inlet manifold, remove TVIS plae. Remove spindles and plates. Weld up spindle holes. Block up vac hose to TVIS. Refit.

Ok big chap, sounds like an afternoons work

[IMR2T]

Guys my boost controller allows me to hit 1.1/1.2bar on the low setting.

Is this ok on a Rev1?

Ive no way of knowing if clutch or Pistons have been upgraded by the last owner.

This is far to much for a daily driver .


Just pull the hose and cap it off to the tvis.. leaves it open


The vsv just remove the hose from the actuator and cap it off .

bu88er, whys this too much for a daily mate?(slightly worried now, lol)

That sounds a lot less work, does that do the same thing as what Pete suggested?

[Peter Gidden]

Is there a picture of steps regarding blocking TVIS? Not that I think I nd it at my bhp?

Not that i know of. Remove inlet manifold, remove TVIS plae. Remove spindles and plates. Weld up spindle holes. Block up vac hose to TVIS. Refit.

Ok big chap, sounds like an afternoons work

But no advantage to you, in fact, you might even reduce your torque figures.

[IMR2T]

Yeah, that's what I was thinking.

Would still like to know why 1.1bars too high for a daily driver?

[2mad]

Stock headgasket for one.. xs power intercooler will still heat soak quite quick (mine did) so you'll be pushing lots of boost for not much reward.

I used to run my ct20b @1.1bar with water/meth , the car felt great , turn it off and heat soak big drop in power


Just my 2p sure plenty of people are running 1.1 bar i just wouldnt recommend it.

[IMR2T]

Ah, ok.

I've not changed any settings since I bought the car.

You think I should turn it down till I get it set up by someone I know?

[Peter Gidden]

Ah, ok.

I've not changed any settings since I bought the car.

You think I should turn it down till I get it set up by someone I know?

IMHO, i wouldn't worry about it. As long as you're aware of the risks of running an engine/drivetrain at more than 50% of it's original maximum boost, go out and enjoy it.

[IMR2T]

I've turned it down for now.

It feels so slow

I'm keen to build a stronger engine and get a an lsd Rev3 gearbox at a later stage but as it's my main car I'll ease of till I'm closer to building a replacement engine.

[2mad]

Ah, ok.

I've not changed any settings since I bought the car.

You think I should turn it down till I get it set up by someone I know?

Personally my settings for your mods would be 0.8 bar low and 0.95 high .. these are relatively safe settings and what i run my st205 gt4 on now , till i beef up my cooling then i'll push a bit higher .


The weak link on a rev 1 is the headgasket when increasing boost .