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[mrorange2]

My RST has a lil problem its doing the same as my black FRST did when you get to about full boost or full throttle the car jolts like you have just hit a wall lol i have my ideas just wondered if someone could give me some ideas what it could be?

[heeman10]

Overboost protection from the sounds of things. What boost and chip are you running?

[mrorange2]

Overboost protection from the sounds of things. What boost and chip are you running?

Ah right boost i dont know yet until i get my boost gague and there shouldnt be any chip on it.

It should be running standard boost as theres no bleed valve on it or anything it has got the amel valve on as well.

[heeman10]

If it's running above standard boost levels and has no chip, you will hit the overboost protection. Get a good gauge on there and see what it's up to

[mrorange2]

Cheers james i'm getting a boost gauge then to check it.

Is there anyway of turning it off?

[heeman10]

By buying a chip to do so. Chips remove the overboost protection function. We supply MSD chips if you'd like one

[RS-DEZ]

hi, its definately overboosting i had the same problem, if you cant afford a chip then you can turn the boost down buts thats no fun

[The Gilly]

think about the condition of the engine before chipping etc etc. You may be better off just dropping the boost alittle (this can be done with a bleed valve BUT get it setup properly)

Just bunging a chip on to get rid of the overboost protection isnt always the best option

[heeman10]

think about the condition of the engine before chipping etc etc. You may be better off just dropping the boost alittle (this can be done with a bleed valve BUT get it setup properly)

Just bunging a chip on to get rid of the overboost protection isnt always the best option

Using a bleed valve will not lower the boost pressure. Dropping the boost pressure would of course rectify the problem, but wouldn't allow the engine to carry on operating as it is at the moment (i.e. at the current power/boost levels), which is what prompted me to suggest a chip. If the engine is so unhealthy that it isn't in a state to be chipped, it probably shouldn't be in use anyway! Most FRSTs running on a T3 weren't bought to run standard power I would say

[mrorange2]

Well i've managed to get a cheap 165 chip, boost gauge, samcos and bleed valve so in next week or two i'll be doing some testing on it.

The engine is in okay condition and its only running the T2 i'm not loooking to be running high boost just stop it from smashing my head in to steering wheel when it boosts lol.

cheers guys i'll let you knwo how it goes.

PS James have you got them rebuild prices yet?

[heeman10]

I had it in my head that it was on a T3, not sure where that came from I'll try to remember to pass on the rebuild prices tomorrow matey, been a bit of a full day today!

[mrorange2]

Right i did a full service on the car today and i installed the boost gauge its boosting at 7psi. The car is running fine. I then installed the 165 chip i got and its still doing it!!!!!!! HELP!!!!!

I noticed its only doing it when you put full throttle on its fine up to about 3/4 throttle then when you hit full it instantly stops whats going on?

[heeman10]

That's no good! You should be making full boost by 75% throttle, so it would appear to be more a case of throttle position than boost pressure measurement, given the current level of information. Swap your TPS for a good known item and see if that helps

[mrorange2]

Not sure if its liked but the Idle control value is unplugged at mo because when i plug it in the car idles at 3.5k Unfortunatly i dont have another TPS to try either i guess i'll have to get them both together off a breaking car.