Has technology made it possible to race 500HP EVO Safely?
Nov 29, 2017, 10:25 AM
#76
PA is a 2.2 FYI. they are using a 4g64 block but destroked.
Also I'd really not recommend calling shops and wasting their time asking for info unless you plan to go with them. That will burn some bridges really fast.
just do a 2.2 with a billet crank and 4g63 block. There is no "best" of anything, there is always some compromise. the 2.2 seems to be a good compromise of it all.
Also I'd really not recommend calling shops and wasting their time asking for info unless you plan to go with them. That will burn some bridges really fast.
just do a 2.2 with a billet crank and 4g63 block. There is no "best" of anything, there is always some compromise. the 2.2 seems to be a good compromise of it all.
getsideways: I have run at 500whp/500tq @26-28psi for 3 years or 6000 miles. That EF3 was magic I think.
Will be pulling head off soon and sending off for refresh......
Nov 29, 2017, 11:58 AM
#77
Don't run Manley Ibeams, they are heavy. Go with something light, Carillo, Oliver, etc. Your rods really shouldn't weigh more than 600 grams. For the piston, make sure it is an FSR/strut style piston (JE FSR, Wiseco HD), not a full round. Also, make sure the pins are least .220 wall. With CP, you have to get the upgraded pins IIRC.
My mindset on building a track focused engine prioritizes cost and ease of replacement over ultimate strength/exotic parts. I don't expect track engines to last more than a couple seasons so minimizing downtime with widely available parts that don't cost a ton and are able to hold the expected power and parameters of the engine are the best option.
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Driv200 (Nov 29, 2017)
Dec 6, 2017, 12:47 PM
#78
Evolving Member
One good source to draw inspiration from is Macau Roadsport Challenge guys
A lot of EVO running there and their race format is 10 laps over street circuit in hot ambient, like 30 C or above hot with frequent safety car interruption
A lot of EVO running there and their race format is 10 laps over street circuit in hot ambient, like 30 C or above hot with frequent safety car interruption
Dec 7, 2017, 06:48 AM
#79
EvoM Guru
Interesting thread guys.
We race our evo at low boost 420kw ATW which is 560hp ATW and high boost is 516kw ATW which is 690hp
We do 10 lap races flat out, + 20 min qualifying and practice sessions.
In saying that we are also dry sumped and dogboxed. but mechanically the car is pretty reliable.
Dogbox is definately worth the money. we went with the norris designs kit. it came mostly complete all u need to do is plumb lines from tank and back. and from pump to oil cooler and then to engine. the lines from sump to pump all come as part of the kit. We used hardline for the runs from tank to pump and engine apart from right at the end which saves alot of money. but its still not cheap!
But to answer the OP question you can run an evo reliably at far more than 500hp if you have the supporting mods to go with it. I do know people running 700hp without drysump in time attack here but thats pushing the limits i reckon.
We race our evo at low boost 420kw ATW which is 560hp ATW and high boost is 516kw ATW which is 690hp
We do 10 lap races flat out, + 20 min qualifying and practice sessions.
In saying that we are also dry sumped and dogboxed. but mechanically the car is pretty reliable.
Dogbox is definately worth the money. we went with the norris designs kit. it came mostly complete all u need to do is plumb lines from tank and back. and from pump to oil cooler and then to engine. the lines from sump to pump all come as part of the kit. We used hardline for the runs from tank to pump and engine apart from right at the end which saves alot of money. but its still not cheap!
But to answer the OP question you can run an evo reliably at far more than 500hp if you have the supporting mods to go with it. I do know people running 700hp without drysump in time attack here but thats pushing the limits i reckon.
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Driv200 (Dec 8, 2017)
Dec 9, 2017, 04:22 PM
#81
I
Dogbox is definately worth the money. we went with the norris designs kit. it came mostly complete all u need to do is plumb lines from tank and back. and from pump to oil cooler and then to engine. the lines from sump to pump all come as part of the kit. We used hardline for the runs from tank to pump and engine apart from right at the end which saves alot of money. but its still not cheap!
Dogbox is definately worth the money. we went with the norris designs kit. it came mostly complete all u need to do is plumb lines from tank and back. and from pump to oil cooler and then to engine. the lines from sump to pump all come as part of the kit. We used hardline for the runs from tank to pump and engine apart from right at the end which saves alot of money. but its still not cheap!
Those are on my wishlist for sure. I couldn't pass up the oppertunity on this last build to help out my fellow EvoM'ers on the wetsump story. I'll be doing the same when I go dry. (insert dirty comment here).
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Driv200 (Dec 11, 2017)
Dec 10, 2017, 06:41 AM
#82
A Dogbox is nice for a dedicated track car. Could be cheaper in the long haul as there are less wear type parts in a dogbox, plus we all know the stock gears (mostly 4th) don't last long. Also the ability to find a better that stock ear ratio is a big plus too.
There is a new Dry Dump entering the market soon. For sure help increase reliability.
There is a new Dry Dump entering the market soon. For sure help increase reliability.
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Driv200 (Dec 11, 2017)
Dec 11, 2017, 03:55 AM
#83
EvoM Guru
theres some great dogboxes on the market now. We use a kaps 5 speed and ive driven it on the street loads its fine. Also know a couple other evos in nz with the same box in street cars. We went thru 3 boxes before we bit the bullet n went for the dogbox.
u guys are lucky up in america to have the likes of buscher and teamrip doing gear kits and upgrades to stock boxes. Too expensive to get them shipped here tho
Dec 11, 2017, 05:31 AM
#84
A Dogbox is nice for a dedicated track car. Could be cheaper in the long haul as there are less wear type parts in a dogbox, plus we all know the stock gears (mostly 4th) don't last long. Also the ability to find a better that stock ear ratio is a big plus too.
There is a new Dry Dump entering the market soon. For sure help increase reliability.
There is a new Dry Dump entering the market soon. For sure help increase reliability.
Same with drysump. Is there something beside Magnus? There needs to be more on the market to help with cost.
Dec 11, 2017, 05:46 AM
#85
Evolved Member
norris designs does a nice dry sump..
dogboxes are nice but difficult on the road if you are not carefull.. basically you need to shift quickly all the time or the dogs wear..
sequential dogboxes are best on track especially if you have shift cut. That saves on box wear and you can upgrade them to pneumatic operation. One of the things I heard from the porsche motorsport guys was that when they went from normal dog sequential to pneumatic operation the shift length did not go down much but the boxes last longer as you get perfect shift everytime..
dogboxes are nice but difficult on the road if you are not carefull.. basically you need to shift quickly all the time or the dogs wear..
sequential dogboxes are best on track especially if you have shift cut. That saves on box wear and you can upgrade them to pneumatic operation. One of the things I heard from the porsche motorsport guys was that when they went from normal dog sequential to pneumatic operation the shift length did not go down much but the boxes last longer as you get perfect shift everytime..
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Driv200 (Dec 12, 2017)
Dec 12, 2017, 12:18 AM
#87
Great info! I didn't know about half of these. I'm laughing at myself now that my motor is apart. I start every project with an open checkbook, but then as reality sets in, and I find parts like this (dogbox and drysump), I start trying to save and change focus. Ha!!!! If I just had $30k, I think I could stay on track from start to finish.
Dec 12, 2017, 08:22 AM
#88
EvoM Guru
iTrader: (1)
I would prioritize a dry sump over a dog box. The synchro box will be pretty OK if properly prepared.
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Driv200 (Dec 15, 2017)
Dec 13, 2017, 03:25 AM
#89
EvoM Guru
If ur serious about track work on a mid to high hp evo a drysump is 100% essential. They arent badly priced. The list above covers all of them. Although i found 1 or 2 were no longer available or the sellers were uncontactable.
we went with the norris one which is a nice bit of kit and well priced. The MAP kit is beautiful but very expensive.
We initially had an albins dogbox and then swapped to the KAPs box which we found to be of far better quality. Much better dog system and all micro polished etc.
i believe quaife is also a good option.
we went with the norris one which is a nice bit of kit and well priced. The MAP kit is beautiful but very expensive.
We initially had an albins dogbox and then swapped to the KAPs box which we found to be of far better quality. Much better dog system and all micro polished etc.
i believe quaife is also a good option.
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Driv200 (Dec 15, 2017)