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digs

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Posts posted by digs

  6. Different diameter wheels front to rear

    in General Celica Discussion

    Posted

    On 11/1/2018 at 10:07, _Chris_ said:

    The regulations:

     

    Rear must be equal or wider.

    Rear must be equal or lower profile.

     

    It's all about stopping the back being less grippy or more squidgy than the front.

     

    Not sure how much is checked in the MOT, I suspect both of the above.

     

    Cool, thanks for that.. Do have 225 45 17 on the rear at the mo, and will have 225 50 16 on the front if fit the 16s, so  technically follow the regs, but was going to use the 215 45 17 on the back, which then don't. 

     

  9. Different diameter wheels front to rear

    in General Celica Discussion

    Posted

    7 hours ago, Monkey Boy 1 said:

    Also, Wider front wheels of a FWD car will fail on an MOT.

     

    Really? Didn't know that. 

     

    4 hours ago, ams said:

    If you get it wrong it can really affect handling. Lots of the MR2 guys end up going back to stock (wider rears) sizes after fitting the same size aftermarket wheels all round. 

     

    My mr2 now has staggered set up and is Def nicer. 

     

    Can try it out pretty much for free so can play around and see what feels. 225 on 7j feel better than 215.on 7j on it, so hoping 225 on 8j should work. 

     

    One way to find out mind so will report back :)

    • Like 1

  11. Different diameter wheels front to rear

    in General Celica Discussion

    Posted

    Hi - currently running 17" 7j wedssport wheels both front and back. Tyres are 225 45 17 rear (too wide for wheel really) and 215 45 17 front.

     

    Its a FWD celica with a 3SGTE, and want to try running wider fronts as that is where the power and traction is. 

     

    I have some Oz Chronos which are 16" 8j wide, and some spare 16" tyres 225 50 16. Have four Ozs, but only two are usable.

     

    Thinking chucking the oz on the front, and the 215 wedssports on the rears, total diameter for wheels and tyres will only be approx 6mm difference. 

     

    Apart from aesthetics which dont really care is there anything majorly concerning about this ? Cant see, differing handling characteristics but the driven wheels are the important ones in that regard.

     

    Poke etc doesn't matter.

     

  13. Tool kit

    in General Celica Discussion

    Posted

    small socket set, foot pump, breakerbar and larger socket, duck tape, zip ties, gloves, spare oil, battery power pack, sleeping bag (you never know), spanners, silicone hose, hose clips, fire extinguisher, aa card.

     

    trust my car ? Of course.... :) 

  16. Non-self learning ECUs (early Celica/Mr2s) prob daft question

    in General Celica Discussion

    Posted

    Hi - kinda, trying to get my head round it. 

     

    So if understand the na without o2 is similar - it tries to keep an idle but apart from runs on a set map, including cruise. 

     

    So yeah in a way, its pretty straightforward to change the map - hence the adjuster pot. You could run that pot inside the car potentially if you wanted to lean out or enrich I guess. 

     

    Might fit the wideband to the na just to see what the fuelling looks like :)

     

    Currently just learning how ecu s control things. 

  17. Non-self learning ECUs (early Celica/Mr2s) prob daft question

    in General Celica Discussion

    Posted

    Yeah so it knows Load, but doesn't try to match a certain air fuel ratio as it doesn't know the ratio ? ie always kind of on open loop (it never adjusts to get to stoic/14.7, its just has a map that assuming all is good at the right fuel levels, but would never know that its not ?)

     

    Its that switching that buggers up some piggybacks I think, as it exaggerates to accommodate the piggyback tune.

  18. Non-self learning ECUs (early Celica/Mr2s) prob daft question

    in General Celica Discussion

    Posted

    Hi, as above, might be a stupid question....

     

    My rev2 3SGE in the MR2 has no o2 sensor or cat - and assume early Gen5s are similar (mine does not have a cat either).

     

    In this case, can i assume the ECU is not self learning as it has no air fuel feedback going into it, therefore runs on set maps based on rev, load, etc. Possibly with knock adjustment ? Only feedback is from timing, but it wont know how much it is over fueling or not ? Hence the little pot that adjusts fuelling up or down.

     

    Question being based on using piggyback ECUs to these - if not self-learning then perfect for piggybacks as the signal adjustment for fuelling will not be self learnt out of the set up ? 

  22. Selling repo'd cars? Advice required

    in General Celica Discussion

    Posted

    wasn't there one of those debt recovery bbc things which the dodgy company basically used a different company to register the cars in a lot in, so they could not use them as part payment for a CCJ. Seemed to remember they had to note down all the cars and do a search on if they were actually registered to the company, and if so they could take them.

     

     

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