Very pleased w A-spec GT35/40
07-11-04, 08:11 PM
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Very pleased w A-spec GT35/40
I am very satisfied with the GT35/40 from A-spec. I wanted a very street-able turbo with plenty of useable power and boost from low rpm's. I wanted a turbo useful for autocross and road race, no 1/4 mile strips for me.
They performed a beautiful installation and also rebuilt my engine. It was apparent Sean was very careful doing it, all was clean and methodically in place.
Steve tuned the engine at the local dyno. He set the boost controller at 12psi since we need to control boost better and do not want to see dangerous spikes.
A-spec also stands behind their work as opposed to other shops, and they are a full fabrication shop.
The engine runs very strong and fast. Power is very tractable and smooth in delivery. Boost starts building around 2,500-3,00rpm at WOT and it is a rush to redline. My car was fast before but now it feels like a rocket.
I'll be getting a better boost controller and an exhaust cutout, then we'll be tuning with race fuel.
Pedro
They performed a beautiful installation and also rebuilt my engine. It was apparent Sean was very careful doing it, all was clean and methodically in place.
Steve tuned the engine at the local dyno. He set the boost controller at 12psi since we need to control boost better and do not want to see dangerous spikes.
A-spec also stands behind their work as opposed to other shops, and they are a full fabrication shop.
The engine runs very strong and fast. Power is very tractable and smooth in delivery. Boost starts building around 2,500-3,00rpm at WOT and it is a rush to redline. My car was fast before but now it feels like a rocket.
I'll be getting a better boost controller and an exhaust cutout, then we'll be tuning with race fuel.
Pedro
07-12-04, 08:09 AM
#3
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It's kinda funny when people posts things like this.
What other full single turbo conversion have you driven?
Are you trying to compare your car to the stock twins?
-Ted
What other full single turbo conversion have you driven?
Are you trying to compare your car to the stock twins?
-Ted
07-12-04, 11:41 AM
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Ted is always so critical. It has gotten to the point that it isn't even worth posting on this board anymore. You try to give a little information and take a beating from many people for doing so.
Oh well...
Oh well...
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07-12-04, 02:56 PM
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Re: Very pleased w A-spec GT35/40
Dr Monzon,
thanks for the kind words. Time to get that boost controller though
thanks for the kind words. Time to get that boost controller though
Originally posted by DrPJM1
I am very satisfied with the GT35/40 from A-spec. I wanted a very street-able turbo with plenty of useable power and boost from low rpm's. I wanted a turbo useful for autocross and road race, no 1/4 mile strips for me.
They performed a beautiful installation and also rebuilt my engine. It was apparent Sean was very careful doing it, all was clean and methodically in place.
Steve tuned the engine at the local dyno. He set the boost controller at 12psi since we need to control boost better and do not want to see dangerous spikes.
A-spec also stands behind their work as opposed to other shops, and they are a full fabrication shop.
The engine runs very strong and fast. Power is very tractable and smooth in delivery. Boost starts building around 2,500-3,00rpm at WOT and it is a rush to redline. My car was fast before but now it feels like a rocket.
I'll be getting a better boost controller and an exhaust cutout, then we'll be tuning with race fuel.
Pedro
I am very satisfied with the GT35/40 from A-spec. I wanted a very street-able turbo with plenty of useable power and boost from low rpm's. I wanted a turbo useful for autocross and road race, no 1/4 mile strips for me.
They performed a beautiful installation and also rebuilt my engine. It was apparent Sean was very careful doing it, all was clean and methodically in place.
Steve tuned the engine at the local dyno. He set the boost controller at 12psi since we need to control boost better and do not want to see dangerous spikes.
A-spec also stands behind their work as opposed to other shops, and they are a full fabrication shop.
The engine runs very strong and fast. Power is very tractable and smooth in delivery. Boost starts building around 2,500-3,00rpm at WOT and it is a rush to redline. My car was fast before but now it feels like a rocket.
I'll be getting a better boost controller and an exhaust cutout, then we'll be tuning with race fuel.
Pedro
07-12-04, 03:03 PM
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I could answer that as Pedro is probably in surgery...
on 93 octane he got 349RWHP SAE and thats with a very conservative 10.9-11.0A/F across the board. Pedro also has a resonated midpipe and Racing Beat catback that we tried to convince to go with a different catback and straight pipe but he wouldnt budge
on 93 octane he got 349RWHP SAE and thats with a very conservative 10.9-11.0A/F across the board. Pedro also has a resonated midpipe and Racing Beat catback that we tried to convince to go with a different catback and straight pipe but he wouldnt budge
Originally posted by modrx7
How much power did you see @ 12 psi???
How much power did you see @ 12 psi???
07-12-04, 06:00 PM
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I know that the resonated midpipe (w. Magnaflow) is constrictive but the car would otherwise be offensively loud.
Therefore an exhaust cutout would be the best answer. Help me choose:
http://www.mccordcg.com/mpp/mpp.htm
http://www.dmhperformance.com/ecutout.htm
http://www.pfyc.com/store/merchant.m...ory_Code=VTEXH
BTW: the PowerFC boost control kit is on the way!
Therefore an exhaust cutout would be the best answer. Help me choose:
http://www.mccordcg.com/mpp/mpp.htm
http://www.dmhperformance.com/ecutout.htm
http://www.pfyc.com/store/merchant.m...ory_Code=VTEXH
BTW: the PowerFC boost control kit is on the way!
07-12-04, 10:53 PM
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Originally posted by Michael Filippello
Ted is always so critical. It has gotten to the point that it isn't even worth posting on this board anymore. You try to give a little information and take a beating from many people for doing so.
Oh well...
Ted is always so critical. It has gotten to the point that it isn't even worth posting on this board anymore. You try to give a little information and take a beating from many people for doing so.
Oh well...
The efficiency of the GT3540 is higher up 15psi+.
I had to question as to why the turbo was only tuned to 12psi.
This is really not in the efficiency range of the GT3540, and there are a lot of other turbos which would've made more efficient power if the max boost is at 12psi.
-Ted
07-12-04, 11:23 PM
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Originally posted by RETed
Never assume anything...
The efficiency of the GT3540 is higher up 15psi+.
I had to question as to why the turbo was only tuned to 12psi.
This is really not in the efficiency range of the GT3540, and there are a lot of other turbos which would've made more efficient power if the max boost is at 12psi.
-Ted
Never assume anything...
The efficiency of the GT3540 is higher up 15psi+.
I had to question as to why the turbo was only tuned to 12psi.
This is really not in the efficiency range of the GT3540, and there are a lot of other turbos which would've made more efficient power if the max boost is at 12psi.
-Ted
07-12-04, 11:41 PM
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Ted, I understand that. The thing is that not everyone is super technical or has the time to write a brief essay on a subject before they post. Many people here post some results to the best of there knowledge in an attempt to be helpfull and then get picked to pieces by others who have more time on their hands. I obviously expect more detail from people in the industry, such as A-Spec and others, when it comes to promoting a product or handing out info, but from the average person, I try to be a little less critical and a little more encouraging.
I do admitt however that many people post on this forum as if they know what they are talking about, and the truth is, they really haven't a clue. I myself try to read as much as possible and only post when either I have a question or know that I am 100% correct with a reply. If I am unsure, I try to qualify that before posting my response. It is very frustrating weeding through all the misinformation out there. So many people just post something as being fact becuase they are just to lazy to do the reseach before making a statement. Or have a big ego.
Just my 2 cents
Mike
I do admitt however that many people post on this forum as if they know what they are talking about, and the truth is, they really haven't a clue. I myself try to read as much as possible and only post when either I have a question or know that I am 100% correct with a reply. If I am unsure, I try to qualify that before posting my response. It is very frustrating weeding through all the misinformation out there. So many people just post something as being fact becuase they are just to lazy to do the reseach before making a statement. Or have a big ego.
Just my 2 cents
Mike
07-13-04, 12:08 AM
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I find Ted to be informative. His questioning of people is to get a better more definitive answer. And you said yourself that most people don't know what they are posting about, so if confronted to find the truth, or god forbid, to go through rational and find the truth they usually don't. Not trying to flame you, but I just find Ted's post informative.
- Steiner
- Steiner
07-13-04, 12:19 AM
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I guess it is sometimes like the old saying. " it is not what you say but how you say it" Ted is very knowledgeable and does the forum a lot of good, it is just that sometimes it seems that people can't even post anymore without everybody picking their post to pieces. Sometimes its for the best, sometimes for the worst. It is just getting harder and harder to make a casuall statement or observation anymore. That's all.
Ted I mean no disrespect.
Ted I mean no disrespect.
07-13-04, 07:32 AM
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I spent time in several cars at the previous rotary revolution. Some setups had more lag than what I had expected, some needed a lot more road to be felt.
My old twins spent more than 2 yrs at 12-14psi and felt strong. I just wanted more power and reliability without the ticking time bomb they represented.
I continue to re-iterate that for a very street-able turbo with plenty of useable power and boost from low rpm's, useful for autocross and road race, not 1/4 mile strips, the GT35/40 is a very capable turbo that has satisfied my requirements so far, and that I am very pleased with the recommendation and job performed by all at A-spec.
A PowerFC boost control kit is on the way and will be tuning w an exhaust cutout, and at a later date with race gas.
I'm still looking forward to see the dyno chart and will post all the new ones, once Ted promises to be nice to newbs. -joke.
Pedro
My old twins spent more than 2 yrs at 12-14psi and felt strong. I just wanted more power and reliability without the ticking time bomb they represented.
I continue to re-iterate that for a very street-able turbo with plenty of useable power and boost from low rpm's, useful for autocross and road race, not 1/4 mile strips, the GT35/40 is a very capable turbo that has satisfied my requirements so far, and that I am very pleased with the recommendation and job performed by all at A-spec.
A PowerFC boost control kit is on the way and will be tuning w an exhaust cutout, and at a later date with race gas.
I'm still looking forward to see the dyno chart and will post all the new ones, once Ted promises to be nice to newbs. -joke.
Pedro
07-14-04, 09:36 PM
#20
I made good power with the Gt3540 also. Here is My sheet, Boost controller oscillating up top cause i had limiter set to 15.5. I also have had great luck with Sean and Steve at A-spec. Here is the thread with my sheet
https://www.rx7club.com/single-turbo-rx-7s-23/gt3540-dyno-sheet-179190/
https://www.rx7club.com/single-turbo-rx-7s-23/gt3540-dyno-sheet-179190/
07-15-04, 06:27 AM
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ZoomZoom: great dyno sheet, boost is definitely building fast and strong. I can't wait to sort out the little bugs!
Ryan: I met you at Jeff's Southern IL meet last year, how's your purple people eater aka Barney? Bad to hear about Jeff's motor, sad story. So what cigars are you smoking now? It's been Cohiba Esplendidos for me.
Ryan: I met you at Jeff's Southern IL meet last year, how's your purple people eater aka Barney? Bad to hear about Jeff's motor, sad story. So what cigars are you smoking now? It's been Cohiba Esplendidos for me.
