Title: whats wrong with my car??
Post by: Marky B on February 04, 2005, 01:38:51 AM
Post by: Marky B on February 04, 2005, 01:38:51 AM
Firstly, what are the REAL figures a standard car sould be producing? Min\'e a 92 FD3S, figures i\'ve been quoted are 265bhp, and 0 - 60 in 4.9 (mazda advert) The car i\'ve bought has just had a new engine, which i took great care to wear in at half boost, now it\'s worn in, i had the boost turned back up, fitted Apexi filters, and a Blitz NUR spec exhaust, yet it\'s still no faster than my mate\'s prelude vtec with an exhaust and filter. there is a large initial pull as the first turbo kicks in, but then it seems tame as it goes through the rest of the rev range almost as if the second turbo isn\'t boosting??? should you feel the second turbo kick in? or am i just mis informed about the cars spec? Any help would be greatly appreciated
Thanks
Mark
Thanks
Mark
Title: whats wrong with my car??
Post by: Ows on February 04, 2005, 07:03:40 AM
Post by: Ows on February 04, 2005, 07:03:40 AM
Should beat your mates car easy I think. Have you got a boost gauge fitted??
You should feel the second turbo kick in a little and then pull strong.
You should feel the second turbo kick in a little and then pull strong.
Title: whats wrong with my car??
Post by: scooby_si on February 04, 2005, 07:06:32 AM
Post by: scooby_si on February 04, 2005, 07:06:32 AM
i take it from your turning boost down comments you have a boost gauge? If so what readings are you getting thru the rev range? (get someone to read this so you can watch road 
lol) if not essential bit of kit get one & do as above....
You should most definitly feel the 2nd turbo kick in around 4500rpm so does at first glance sound like yours isnt.....
Figures are accurate but for a later car, although 0-60 can always be in question on manufacturers stats i think the earlier ones were quoted as 5.1 to 60 & 255bhp off the top of my head, pretty damn fast either way!!!
thread with different models/years (http://www.mazdarotaryclub.com/forums/showthread.php?s=&threadid=394)
Si
lol) if not essential bit of kit get one & do as above....You should most definitly feel the 2nd turbo kick in around 4500rpm so does at first glance sound like yours isnt.....
Figures are accurate but for a later car, although 0-60 can always be in question on manufacturers stats i think the earlier ones were quoted as 5.1 to 60 & 255bhp off the top of my head, pretty damn fast either way!!!
thread with different models/years (http://www.mazdarotaryclub.com/forums/showthread.php?s=&threadid=394)
Si
Title: whats wrong with my car??
Post by: Ricco_04 on February 05, 2005, 02:47:07 PM
Post by: Ricco_04 on February 05, 2005, 02:47:07 PM
Im 99.9% sure that my second turbo isnt doing the business so when I took it to mazda I asked them again and again to find a fault with it. They had it for a while and said all is fine!!! So I told them to look again and they can not find anything wrong!!
I ran a boost guage on mine - 2500 - 4450 rpm was 12-14psi and when 2 turbo kicks in @ 4500 rpm the guage drops to 5psi and then to 2psi - it feels like easing off the accelerator!! There must be something wrong?.
If you have just had a rebuild then it cant be cracked pipes cause surely they would have found that - The actuator (sp?) for the 2nd turbo could be hanging off (the circlips that hold them on are prone to rusting and are naff)
There was also another peep on here that had the actuator put back on and the garage had (i dont know the particulars) used a nut and bolt to hold it on - once it had opened up it stayed open cause the nut was too tight.
Thats all I can think of for now?
I ran a boost guage on mine - 2500 - 4450 rpm was 12-14psi and when 2 turbo kicks in @ 4500 rpm the guage drops to 5psi and then to 2psi - it feels like easing off the accelerator!! There must be something wrong?.
If you have just had a rebuild then it cant be cracked pipes cause surely they would have found that - The actuator (sp?) for the 2nd turbo could be hanging off (the circlips that hold them on are prone to rusting and are naff)
There was also another peep on here that had the actuator put back on and the garage had (i dont know the particulars) used a nut and bolt to hold it on - once it had opened up it stayed open cause the nut was too tight.
Thats all I can think of for now?
Title: whats wrong with my car??
Post by: scooby_si on February 05, 2005, 04:33:39 PM
Post by: scooby_si on February 05, 2005, 04:33:39 PM
well yer 2nd tubby clearly aint doing it\'s thing from yer boost readings so MAzda clearly showing their lack of expertese...
Get it to a rotary?RX7 expert i guess eith WGT or Dragon will be the nearest/easiest for you?
Who did rebuild?
Si
Get it to a rotary?RX7 expert i guess eith WGT or Dragon will be the nearest/easiest for you?
Who did rebuild?
Si
Title: whats wrong with my car??
Post by: Ricco_04 on February 05, 2005, 04:43:17 PM
Post by: Ricco_04 on February 05, 2005, 04:43:17 PM
QuoteWho did rebuild?Does the condition of the engine have some bearing then?
QuoteMAzda clearly showing their lack of expertese...They told me that they had to ring Pip!!!!
Title: whats wrong with my car??
Post by: scooby_si on February 05, 2005, 09:10:25 PM
Post by: scooby_si on February 05, 2005, 09:10:25 PM
it\'s a fairly common thing as i\'ve read which can have a variety of causes. Was more asking after rebuild to see what kind of come back you have with them sorting it etc was just a general question....?
Did they know (ie was boost gauge fitted) the boost figures i seriously doubt they told Pip that & his response was oh thats normal.
As i say if i were you i\'d take it to Pip directly to sort out properly first hand....;)
Si
Did they know (ie was boost gauge fitted) the boost figures i seriously doubt they told Pip that & his response was oh thats normal.
As i say if i were you i\'d take it to Pip directly to sort out properly first hand....;)
Si
Title: whats wrong with my car??
Post by: MikeLMR on February 05, 2005, 10:30:01 PM
Post by: MikeLMR on February 05, 2005, 10:30:01 PM
just to be picky :bandit
Mazda have a VERY good idea what makes our cars tick .... the Mazda dealer franchises you took your cars to do not ...
Mazda have a VERY good idea what makes our cars tick .... the Mazda dealer franchises you took your cars to do not ...
Title: whats wrong with my car??
Post by: Marky B on February 06, 2005, 12:26:26 PM
Post by: Marky B on February 06, 2005, 12:26:26 PM
I bought the car off pip, he did the rebuild, and turned the boost back up :confused: he said i need to go down and have it set up when he gets his new rolling road in a couple of weeks, but it seems to be lagging much more than that :(
Title: Sorted
Post by: Marky B on February 20, 2005, 01:33:39 AM
Post by: Marky B on February 20, 2005, 01:33:39 AM
took it back to pip on friday, he had a drive and confirmed the second turbo was not boosting, took the car straight away, and sorted the problem in a couple of hours.
The problem was a split pipe, and and a clip on another pipe. car is now running v well, but he still wants it back to set it up on his new rolling road in a few weeks. It leaves the prelude for dust. I took it to Santa pod today, and ran a 14.2 1/4mile, (what is a usual 1/4 mile time???) but i\'m still getting used to it trying to spin when the second turbo kicks in. I\'ll do better next time:D but did beat some skylines.
Thanks for all your help, and thanks to PIP
Marky B
The problem was a split pipe, and and a clip on another pipe. car is now running v well, but he still wants it back to set it up on his new rolling road in a few weeks. It leaves the prelude for dust. I took it to Santa pod today, and ran a 14.2 1/4mile, (what is a usual 1/4 mile time???) but i\'m still getting used to it trying to spin when the second turbo kicks in. I\'ll do better next time:D but did beat some skylines.
Thanks for all your help, and thanks to PIP
Marky B
Title: whats wrong with my car??
Post by: Mark C on February 20, 2005, 04:06:32 PM
Post by: Mark C on February 20, 2005, 04:06:32 PM
Hmm i as at pod all day today, well from around 10am till 3pm bloody cold it was too, didn\'t see no other rex\'s where were you hiding???
Glad you got your motor sorted any way.
Glad you got your motor sorted any way.
Title: whats wrong with my car??
Post by: Marky B on February 20, 2005, 08:52:59 PM
Post by: Marky B on February 20, 2005, 08:52:59 PM
QuoteOriginally posted by Mark C
Hmm i as at pod all day today, well from around 10am till 3pm bloody cold it was too, didn\'t see no other rex\'s where were you hiding???
Glad you got your motor sorted any way.
Sorry, you\'re right, I should\'ve said i was at Santa Pod YESTERDAY lol, (check time of post) I was there Saturday 19th. Arrived at 9, stayed till 8:30 and yep it was stupidly cold!!!! Only other rex i saw was a silver one, and only as it was leaving. Does the club organise member\'s trips there???
Title: whats wrong with my car??
Post by: Mark C on February 20, 2005, 09:39:21 PM
Post by: Mark C on February 20, 2005, 09:39:21 PM
Ah right my mistake i only checked the date :rollin
Yep the club do go there occasionally but it tends to be for bigger stuff like Japanese performace show.
Was the Silver Rex k reg and followed by a blue MR2 if so i know those guys from another forum for northants jap cars.
Yep the club do go there occasionally but it tends to be for bigger stuff like Japanese performace show.
Was the Silver Rex k reg and followed by a blue MR2 if so i know those guys from another forum for northants jap cars.
Title: whats wrong with my car??
Post by: Marky B on February 20, 2005, 11:18:31 PM
Post by: Marky B on February 20, 2005, 11:18:31 PM
i can\'t remember if the silver rex was with a MR2, only saw it once from a distance, and didn\'t get a chance to go over and say hi.
Me and a few mates are gonna make it a regular thing, going down to the pod, are you on msn? of so we can let you know an poss meet up down there, would be nice to meet another rex to run against:D
MarkyB_@hotmail.com
Me and a few mates are gonna make it a regular thing, going down to the pod, are you on msn? of so we can let you know an poss meet up down there, would be nice to meet another rex to run against:D
MarkyB_@hotmail.com
Title: whats wrong with my car??
Post by: Mark C on February 21, 2005, 06:59:14 PM
Post by: Mark C on February 21, 2005, 06:59:14 PM
Ok mate would be good to meet up. Will see if i can drag a few buddies over too. There are a few RX\'s on my local forum so will try to get them along.
Title: Re: Sorted
Post by: 20B_boy on February 21, 2005, 09:06:08 PM
Post by: 20B_boy on February 21, 2005, 09:06:08 PM
QuoteOriginally posted by Marky BThe earlier cars run the 1/4 in the 14.5 range as stock. The later cars can be a second quicker. Technique counts for a lot with any RWD launching tho - so you should be in the 13s easy after a couple of tyres ;-)
I took it to Santa pod today, and ran a 14.2 1/4mile, (what is a usual 1/4 mile time???)
Title: whats wrong with my car??
Post by: Marky B on February 23, 2005, 01:00:08 AM
Post by: Marky B on February 23, 2005, 01:00:08 AM
great :) Mine\'s a J reg, so i suppose i\'m doing well for my first time running. The only mods I have are a Blitz NUR spec, and Apexi filters, pip\'s told me the next step is an Apexi Power FC, has anyone got similar mods? and what power and times can I expect to get from these?