the parts to complete my project
engine:
255 walbro fuel pump cops 98-01 toyota carolla torsen 4:10 exedy stage 2 clutch oil cooler arp head studs arp main stauds cometic head gasket oem gaskets all of them begi ssm custom 3" downpipe turbo garrett 2860rs (disco potato) stainlees oil lines stainlees water lines hks bov limted usa edition black fmic 22x9x3 2.5" fmic pipping weisco turbo pistons 79mm bore corrilo h rods oem water pump oem oil pump hks cam shafts maruha cam gears gates racing timing belt super tech valves super tech valve spring super tech guides msm pcv valve custon 3" straight pipe interier: 330 mm nardi deep corner leather trust shift knob bride zeta 2 black seat memery fab seat rails broadway mirror aem true boost aem wideband aem oil temp megasquirt pnp hard dogg m2 hard core roll bar suspension: stance gr+ coilovers racing beat rear subfram barce mazdaspeed tower bar wheels: 15x7 et 38 panasport wheels on yoko s drives 15x8 et -3 work equip 03's gold on toyo t1r's my plan is to buy to rear wheels in 15x10 et -10 exterier: gv headlight cover trap 100mm front lip jubiride fender flares autoconxion ver2 trunk lid oem hard top my question was when do 550cc injectors max out. do i need a fuel presure regulator is it true megasquirt can only hold 21.5psi after that u need to add or change something in the ecu. my goal was to run race gas at i dunno 26-28psi.yes the car is a 1.6 and is there anything else i need to no thanks alot |
Thats quite a list.
I dont know that 550s will be able to give you much below about 12:1 or so AFR at that kind of boost with a reasonable duty cycle. I would make sure you have a good AFPR as a matter of course. I found in my last project that setting my base pressure a bit lower allowed me to get the tuning at idle a bit more freindly. Then too, that was with 950CC injectors that I really did not need. Personaly, after my last experience with a pretty rapid build, its best to buy things in small batches and go slowly, finding potential issues as you go. |
Afpr? thats a fuel presure regulator
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There's a pretty simple calculator to size injectors, do a google search. Obviously it's not going to be tied to PSI, but how much power you end up making.
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After 21psi you need to upgrade the MAP sensor to the 3 BAR unit.
And with a shopping list like that, I can haz your trust fund ?? |
Originally Posted by Duckie_uk
(Post 505557)
After 21psi you need to upgrade the MAP sensor to the 3 BAR unit
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You can specify it when you order the unit, its only a few dollars.
Tbh if you are doing all this, do it to a 1.8 from a scrapyard you'll thank me later. |
too late on the 1.8 money is all spent. i have a pnp megasquirt good for 21 psi is there anything i can do to get a 3bar map or do i have to order a whole new ecu with a 3bar inside already
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Originally Posted by albumleaf
(Post 505556)
There's a pretty simple calculator to size injectors, do a google search. Obviously it's not going to be tied to PSI, but how much power you end up making.
RC Fuel Injection Good point. I seem to be in insomniac mode, so there we go. A 2860 with all the goodies should be making at least 300 HP at the crank at 27 psig with race gas, and that calculator shows the 550s starting to run out of breath in that area. Sorry about the AFPR idea :noob: |
what i made 301hp lasy year at 12 psi with 550cc and 190 fuel pump same turbo
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Originally Posted by mtl_miata
(Post 505564)
what i made 301hp lasy year at 12 psi with 550cc and 190 fuel pump same turbo
Thats pretty high HP for 12 psig on a 2860 AFAIK, but it just makes my point for me. If you hit 300 or so HP on 12 psig, then there is no way that the 550s will handle the amount of airflow/HP you will have at double that boost. |
Dump the cometic head gasket and use an OEM HG - if you blow an OEM HG you have serious issues that reach well beyond the quality of the gasket used.
Your intercooler is undersized for 25+psi, as is the turbo. The GT2860RS isn't efficient past ~22psi, so you'll be blowing plenty of hot air at 26. Your clutch is SORELY lacking - I don't have any experience with an Exedy Stage 2 clutch, but I strongly doubt it's able to handle the 400-450whp you're talking about making here. I would also opt for an ECU that has better knock sensing capability than the MSPNP does. The OEM CAS is a liability at the kind of power levels you're talking about as well - you need to strongly consider a crank trigger. I'd like to see a dyno chart to back that 300whp@12psi as well, as well as an ECU map. |
get some BE billet oil pump gears if you want your motor to last, trust me
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Yes you can retrofit a 3 bar map sensor to the PNP, order one from diyautotune then you will have to open the case up and switch it out. You can find details in the assembly guide from MegaSquirt - Electronic Fuel Injection Computer by Bowling and Grippo ©2010 . Your board will look slightly different because it is a V3.75 using SMD components but the map sensor is the same. Once it's soldered in place you will have to configure the MS to use the 3bar sensor in the mega configurator. +1 on the crank trigger mine is great.
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Other shit to throw on the list (why not?)
water injection for safety or glory ati dampner accusump for safety and glory |
Originally Posted by faeflora
(Post 505599)
Other shit to throw on the list (why not?)
water injection for safety or glory ati dampner accusump for safety and glory after what psi level do i need race fuel? I read 16psi is that true. i guess im not going to pass the 21 psi mark this year anyways thanks alot guys for the help and answering my questions. |
Originally Posted by mtl_miata
(Post 505633)
do i really need an ati damper the thing is like 500$?
There is no limit to the boost you can run on pump gas vs. race gas - that's a question for the professional you hire to tune your car. |
its not the fact of that its the fact its 500$ for just a small piece like that speaking my mind thats all
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does anyone know which 1000cc injoctors i need from rc part number would be greatly appreciated
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1000cc might be a bit over kill. You may have trouble getting it to idle nicely.
BTW you say that you have most of this stuff already. How about throwing some pictures up? Us folks at MT like pictures of shiny stuff. |
Originally Posted by mtl_miata
(Post 505841)
does anyone know which 1000cc injoctors i need from rc part number would be greatly appreciated
Regarding the ATI dampener, a gay sympathizer named hustler recently posted a picture of NASCAR engine and it had one... something like http://www.wegnerautomotive2.com/GRA...scar007_xx.gif Actually, after a slight amount of research, I find that there are multiple types and levels of "nascar" engines. Meh, who knows if they are on jeff gordon's race car. Nyways Read this about damper: Engine Damper - Circle Track Magazine |
Use the 4bar mapdaddy, it was the same price and the 3bar when I bought it a month ago and has baro correction as well. it was fairly simple to install.
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Originally Posted by Savington
(Post 505689)
I'd like to see a dyno chart to back that 300whp@12psi as well, as well as an ECU map.
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Originally Posted by mtl_miata
(Post 505564)
what i made 301hp lasy year at 12 psi with 550cc and 190 fuel pump same turbo
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300 crank not wheel
called flyingmiata they have no idea of the part number i need for 1000cc injectors same for begi so you tell me what i should do now here some pics of some of my stuff http://i174.photobucket.com/albums/w...l/DSCN1479.jpg http://i174.photobucket.com/albums/w...l/DSCN1480.jpg http://i174.photobucket.com/albums/w...l/DSCN1481.jpg http://i174.photobucket.com/albums/w...l/DSCN1482.jpg http://i174.photobucket.com/albums/w...l/DSCN1483.jpg http://i174.photobucket.com/albums/w...l/DSCN1484.jpg http://i174.photobucket.com/albums/w...l/DSCN1485.jpg http://i174.photobucket.com/albums/w...l/IMG_0049.jpg |
What correction factor was used to get crank numbers? What were the actual wheel numbers? Nobody in the Miata world uses crank horsepower - every single quoted number is WHP.
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Originally Posted by faeflora
(Post 505901)
Regarding the ATI dampener, a gay sympathizer named hustler recently posted a picture of NASCAR engine and it had one...
something like *cool engine pic* Actually, after a slight amount of research, I find that there are multiple types and levels of "nascar" engines. Meh, who knows if they are on jeff gordon's race car. Nyways Read this about damper: Engine Damper - Circle Track Magazine |
Originally Posted by mtl_miata
(Post 506122)
called flyingmiata they have no idea of the part number i need for 1000cc injectors same for begi so you tell me what i should do now
I'm feeling nice this evening - what you really want are the new Bosch 1000cc saturated injectors, which I've heard nothing but good things about. Any injector that fits a 2nd gen Rx7 will fit our car, so you should ask Bosch or a Bosch retailer about 1000cc saturated injectors for the FC Rx7. They will send the right parts. I'm using RC750s right now, and if my E85 conversion later this year requires a set of 1000cc injectors, I'll be ordering the Bosch units. |
Originally Posted by mtl_miata
(Post 506122)
300 crank not wheel
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Originally Posted by Savington
(Post 506180)
I'd try calling RC. ;)
I'm feeling nice this evening - what you really want are the new Bosch 1000cc saturated injectors, which I've heard nothing but good things about. Any injector that fits a 2nd gen Rx7 will fit our car, so you should ask Bosch or a Bosch retailer about 1000cc saturated injectors for the FC Rx7. They will send the right parts. I'm using RC750s right now, and if my E85 conversion later this year requires a set of 1000cc injectors, I'll be ordering the Bosch units. |
Instead of buying the bosch injectors you can just buy my RC 750CC injectors. Pigtails with connectors n all.
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If you look at the DSM crowd, generally you dont really get too much in the way of idle problems untill about 1000CC injectors. I used 950s with no trouble, but then I also had a management system that allowed me to dial in dead time. You get the real headaches when you run the 1600 injectors. But those are almost never needed. Honestly I'll bet that 750s or even 650s will do the trick, especilly if you get water/meth.
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Originally Posted by Sparetire
(Post 506740)
If you look at the DSM crowd, generally you dont really get too much in the way of idle problems untill about 1000CC injectors. I used 950s with no trouble, but then I also had a management system that allowed me to dial in dead time. You get the real headaches when you run the 1600 injectors. But those are almost never needed. Honestly I'll bet that 750s or even 650s will do the trick, especilly if you get water/meth.
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Cool, I did not know that. I loved my 950s and the fact that my duty cycle was maxing at like 60% running very rich on a ~300HP car. But I did have to adjust my dead time to like 28 or 30 usec or something, I dont remember exactly. They were good and you would not know they were there in DD situations, but I did loose maybe 1.5 MPG from my 650s. These Bosch unts sound nice.
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i bought the bosch 1000 today from fuelinjectorclinic.com there on the way to my house
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^ I got great service from him, good company.
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heres some pics they just came in today bosch 1000cc
http://i174.photobucket.com/albums/w...l/DSCN1824.jpg http://i174.photobucket.com/albums/w...l/DSCN1822.jpg |
Originally Posted by Savington
(Post 506180)
I'm using RC750s right now, and if my E85 conversion later this year requires a set of 1000cc injectors, I'll be ordering the Bosch units.
I have my ID1000s on order through my local tuner. I can't wait to rub on them. Rue the day when I bought the 450s. |
How the hell is such a large flow injector in such a small physical package??!!
They do look pretty sweet though, I'm insanely jealous. Not that I would ever need 1000cc injectors but I'd like to be able to look at em when I lift the bonnet. |
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