Highest HP 4g63 engine (from 2007)
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Joined: Oct 2011
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Tim, just a quick answer.
We measure Vol.Eff with out turbo, we develop an engine with best NA VE first then we calculate with x boost pressure x intercooler Eff and pressure drop from IC and find the turbo VE.Eff per boost that we check then the turbo comp and turbine map if its close to reality. We dont trust comp maps as creted in cells completely diferent than ambient.
There are 3 types of Eff.
Vol.eff, Mech Eff. and Fuel ConvEff. The way u describe it to me seems that u calculate the fuel Conv.eff not the Volumetric Eff.
Spyros
We measure Vol.Eff with out turbo, we develop an engine with best NA VE first then we calculate with x boost pressure x intercooler Eff and pressure drop from IC and find the turbo VE.Eff per boost that we check then the turbo comp and turbine map if its close to reality. We dont trust comp maps as creted in cells completely diferent than ambient.
There are 3 types of Eff.
Vol.eff, Mech Eff. and Fuel ConvEff. The way u describe it to me seems that u calculate the fuel Conv.eff not the Volumetric Eff.
Spyros
High VE on N/A engine surely would be compeletely the wrong setup for a turbo application so i can't see that base translating across. Cam spec, intake spec, exhaust spec, all very very different if optimised.
Sorry just trying to understand your methods. Maybe you use computer simulation to calculate your VE figure?
any special valve train needed for the stg2 cams? i've got supertech dual springs and retainers and stock valves with soon to be built bottom end ( wiseco pistons manley TT rods).. my friend Raif told me to check out the cams.
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Joined: Apr 2008
Posts: 282
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From: Athens, Greece
Hi,
claudiumxg, we have more than 10 sets in stock with 3rings. I will upload some pics.
Dragracer187, stage 2 normaly needs berilium valve seats, but we can make same profile less agressive that can use with spring kits > seat pressure 92 @39.6 and open lift 235 @ 11.5 lbs/min. Supertech and ferrea can be used as well.
06IXMR, a good spring kit look above.
claudiumxg, we have more than 10 sets in stock with 3rings. I will upload some pics.
Dragracer187, stage 2 normaly needs berilium valve seats, but we can make same profile less agressive that can use with spring kits > seat pressure 92 @39.6 and open lift 235 @ 11.5 lbs/min. Supertech and ferrea can be used as well.
06IXMR, a good spring kit look above.
Last edited by Extreme Tuners; Nov 28, 2011 at 09:50 AM.
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Joined: Nov 2010
Posts: 6
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From: Finland
/Andre'
Hi,
claudiumxg, we have more than 10 sets in stock with 3rings. I will upload some pics.
Dragracer187, stage 2 normaly needs berilium valve seats, but we can make same profile less agressive that can use with spring kits > seat pressure 92 @39.6 and open lift 235 @ 11.5 lbs/min. Supertech and ferrea can be used as well.
06IXMR, a good spring kit look above.
claudiumxg, we have more than 10 sets in stock with 3rings. I will upload some pics.
Dragracer187, stage 2 normaly needs berilium valve seats, but we can make same profile less agressive that can use with spring kits > seat pressure 92 @39.6 and open lift 235 @ 11.5 lbs/min. Supertech and ferrea can be used as well.
06IXMR, a good spring kit look above.
Newbie
Joined: Dec 2008
Posts: 80
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From: Cluj
hi, do they come in 85mm? standard pin location? (for standard rod ratio)
what cams spec you for std turbo and std turbo with 33mm restrictor?
what cams spec you for std turbo and std turbo with 33mm restrictor?
Hi,
claudiumxg, we have more than 10 sets in stock with 3rings. I will upload some pics.
Dragracer187, stage 2 normaly needs berilium valve seats, but we can make same profile less agressive that can use with spring kits > seat pressure 92 @39.6 and open lift 235 @ 11.5 lbs/min. Supertech and ferrea can be used as well.
06IXMR, a good spring kit look above.
claudiumxg, we have more than 10 sets in stock with 3rings. I will upload some pics.
Dragracer187, stage 2 normaly needs berilium valve seats, but we can make same profile less agressive that can use with spring kits > seat pressure 92 @39.6 and open lift 235 @ 11.5 lbs/min. Supertech and ferrea can be used as well.
06IXMR, a good spring kit look above.
Thread Starter
Former Sponsor
Joined: Apr 2008
Posts: 282
Likes: 0
From: Athens, Greece
4g63evoeight, yes will do.
Cams are more complicated that seems. There is no cam fit 100% to all engine setups. We want clear it and not be any missunderstood. We test and design cams more than 10years to any race engine there is and any type of racing. Genuine stage 2 cams are designed to work efficient to our race engine and produce peak power between 10-11000rpms. So to our race engine fits 100% and do the job that they design perfect. If we sell the specific cams to a not efficient engine or an engine that have not 1:1 intake to exhaust ratio then the cams will dont work as they design it. Will work 80 or 70%. If someone tells u that a general profile match to ur setup then he dont know his job.
So for that reason for every sirius racers or customer we ask some info of his setup to modify our existing profile to fit as close we can.
If someone dont know some specs we ask, then we have already stage 1 or 2 with mild ramps and flow ratio 1:0.93 that its close to stock or normaly modified cylinder head to fit as close we can.
Stage 1 i ensure u that will beat any existing profile and its close to the limit of stock material valve seat. We have test them from stock turbo to 1500hp engine with excelent results. We also offer stage 2 that is the mild child of the real stage 2 with less acceleration and less valve lift for those that use more than ~95lbs turbo or 44psi and more.
Stage 3 requires titanium valves, berilium valve seats and designed for peak power 10-12000rpms. We recomend also billet steel cams for this stage as the spring kit must be very hard and will damage the cast iron material very quick.
From plain white paper to grind to dyno
.
Many profiles and even 1 degree more or less that u dont need plays major role.
4g63evoeight, i suggest u try our stage 1 cams u will be more than satisfied.
claudiumxg, we have in stock 13cr 150mm length rod and 88mm stroke 2618 or 4032 material.
We have also 32-33-34 mm restrictor cam specs as we have supply many race cars for this reason.
Near u there is a good and very known racer at xgames using some of our profiles http://www.facebook.com/josephburkemotorsport
Excelent torque at low rpms that are designed for this purpose. for further details please send us an email.
Spyros
Cams are more complicated that seems. There is no cam fit 100% to all engine setups. We want clear it and not be any missunderstood. We test and design cams more than 10years to any race engine there is and any type of racing. Genuine stage 2 cams are designed to work efficient to our race engine and produce peak power between 10-11000rpms. So to our race engine fits 100% and do the job that they design perfect. If we sell the specific cams to a not efficient engine or an engine that have not 1:1 intake to exhaust ratio then the cams will dont work as they design it. Will work 80 or 70%. If someone tells u that a general profile match to ur setup then he dont know his job.
So for that reason for every sirius racers or customer we ask some info of his setup to modify our existing profile to fit as close we can.
If someone dont know some specs we ask, then we have already stage 1 or 2 with mild ramps and flow ratio 1:0.93 that its close to stock or normaly modified cylinder head to fit as close we can.
Stage 1 i ensure u that will beat any existing profile and its close to the limit of stock material valve seat. We have test them from stock turbo to 1500hp engine with excelent results. We also offer stage 2 that is the mild child of the real stage 2 with less acceleration and less valve lift for those that use more than ~95lbs turbo or 44psi and more.
Stage 3 requires titanium valves, berilium valve seats and designed for peak power 10-12000rpms. We recomend also billet steel cams for this stage as the spring kit must be very hard and will damage the cast iron material very quick.
From plain white paper to grind to dyno
. Many profiles and even 1 degree more or less that u dont need plays major role.
4g63evoeight, i suggest u try our stage 1 cams u will be more than satisfied
.claudiumxg, we have in stock 13cr 150mm length rod and 88mm stroke 2618 or 4032 material.
We have also 32-33-34 mm restrictor cam specs as we have supply many race cars for this reason.
Near u there is a good and very known racer at xgames using some of our profiles http://www.facebook.com/josephburkemotorsport
Excelent torque at low rpms that are designed for this purpose. for further details please send us an email.
Spyros
Last edited by Extreme Tuners; Nov 28, 2011 at 01:11 PM.
4g63evoeight, yes will do.
Cams are more complicated that seems. There is no cam fit 100% to all engine setups. We want clear it and not be any missunderstood. We test and design cams more than 10years to any race engine there is and any type of racing. Genuine stage 2 cams are designed to work efficient to our race engine and produce peak power between 10-11000rpms. So to our race engine fits 100% and do the job that they design perfect. If we sell the specific cams to a not efficient engine or an engine that have not 1:1 intake to exhaust ratio then the cams will dont work as they design it. Will work 80 or 70%. If someone tells u that a general profile match to ur setup then he dont know his job.
So for that reason for every sirius racers or customer we ask some info of his setup to modify our existing profile to fit as close we can.
If someone dont know some specs we ask, then we have already stage 1 or 2 with mild ramps and flow ratio 1:0.93 that its close to stock or normaly modified cylinder head to fit as close we can.
Stage 1 i ensure u that will beat any existing profile and its close to the limit of stock material valve seat. We have test them from stock turbo to 1500hp engine with excelent results. We also offer stage 2 that is the mild child of the real stage 2 with less acceleration and less valve lift for those that use more than ~95lbs turbo or 44psi and more.
Stage 3 requires titanium valves, berilium valve seats and designed for peak power 10-12000rpms. We recomend also billet steel cams for this stage as the spring kit must be very hard and will damage the cast iron material very quick.
From plain white paper to grind to dyno.
Many profiles and even 1 degree more or less that u dont need plays major role.
4g63evoeight, i suggest u try our stage 1 cams u will be more than satisfied.
claudiumxg, we have in stock 13cr 150mm length rod and 88mm stroke 2618 or 4032 material.
We have also 32-33-34 mm restrictor cam specs as we have supply many race cars for this reason.
Near u there is a good and very known racer at xgames using some of our profiles http://www.facebook.com/josephburkemotorsport
Excelent torque at low rpms that are designed for this purpose. for further details please send us an email.
Spyros
Cams are more complicated that seems. There is no cam fit 100% to all engine setups. We want clear it and not be any missunderstood. We test and design cams more than 10years to any race engine there is and any type of racing. Genuine stage 2 cams are designed to work efficient to our race engine and produce peak power between 10-11000rpms. So to our race engine fits 100% and do the job that they design perfect. If we sell the specific cams to a not efficient engine or an engine that have not 1:1 intake to exhaust ratio then the cams will dont work as they design it. Will work 80 or 70%. If someone tells u that a general profile match to ur setup then he dont know his job.
So for that reason for every sirius racers or customer we ask some info of his setup to modify our existing profile to fit as close we can.
If someone dont know some specs we ask, then we have already stage 1 or 2 with mild ramps and flow ratio 1:0.93 that its close to stock or normaly modified cylinder head to fit as close we can.
Stage 1 i ensure u that will beat any existing profile and its close to the limit of stock material valve seat. We have test them from stock turbo to 1500hp engine with excelent results. We also offer stage 2 that is the mild child of the real stage 2 with less acceleration and less valve lift for those that use more than ~95lbs turbo or 44psi and more.
Stage 3 requires titanium valves, berilium valve seats and designed for peak power 10-12000rpms. We recomend also billet steel cams for this stage as the spring kit must be very hard and will damage the cast iron material very quick.
From plain white paper to grind to dyno
. Many profiles and even 1 degree more or less that u dont need plays major role.
4g63evoeight, i suggest u try our stage 1 cams u will be more than satisfied
.claudiumxg, we have in stock 13cr 150mm length rod and 88mm stroke 2618 or 4032 material.
We have also 32-33-34 mm restrictor cam specs as we have supply many race cars for this reason.
Near u there is a good and very known racer at xgames using some of our profiles http://www.facebook.com/josephburkemotorsport
Excelent torque at low rpms that are designed for this purpose. for further details please send us an email.
Spyros
Thread Starter
Former Sponsor
Joined: Apr 2008
Posts: 282
Likes: 0
From: Athens, Greece
Will be on our website soon. Race profiles will be secret to protect our customers, never will be on public view. we dont want any other cam company copy us.
We know that stage 1 and 2 will be copy thats why we havent publish the profiles here yet. please respect it and wait our new website, there will be back to back tests from flowdynamics to dyno.
We know that stage 1 and 2 will be copy thats why we havent publish the profiles here yet. please respect it and wait our new website, there will be back to back tests from flowdynamics to dyno.