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Discussion Starter · #1 ·
Need help with my engine i dont know what engine is this its a single vtec engine. can anybody help me identifying my engine pls, thanks! Its a d15b engine i dont know the rest they just said its a d15b engine straight po8 1st pic ecu 2nd pic throttle body 3rd pic engine block 4th pic head i want to know the specs HP of this engine
 

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S20 = any 5 speed 92-95 transmission

JDM specs assumes VTEC...
 

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Yes my engine is d15b straight po8 so this engine has 20 cam lobes? Is it 130hp the one that all jdm wants im a right? Im newbie hehe sorry bout that

What can you guys say about my engine is it a good enough or i need to mods my engine to make it a bit stronger? Why my valve cover is like that vtec - e? Is my engine a d15b vtec? Do my engine have po8 head?

Ty a lot

Can you help me to identify my engines head what kind of head it is ty.. if it is a jdm po8 head or vtec e head
 

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BATSLOMAN GIVES NO FUCKS.
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google is your friend


vtec and vtecE - Honda-Tech

The earliest VTEC-E implementation is a variation of SOHC VTEC which is used to increase combustion efficiency at low RPM while maintaining the mid range performance of non-vtec engines. VTEC-E is the first version of VTEC to employ the use of roller rocker arms and because of that, it forgoes the need for having 3 intake lobes for actuating the two valves—two lobes for non-VTEC operation(one small and one medium-sized lobe) and one lobe for VTEC operation(the biggest lobe). Instead, there are two different intake cam profiles per cylinder—a very mild cam lobe with little lift and a normal cam lobe with moderate lift. Because of this, at low RPM, when VTEC is not engaged, one of the two intake valves is allowed to open only a very small amount due to the mild cam lobe, forcing most of the intake charge through the other open intake valve with the normal cam lobe. This induces swirl of the intake charge which improves air/fuel atomization in the cylinder and allows for a leaner fuel mixture to be used. As the engine's speed and load increase, both valves are needed to supply a sufficient mixture. When engaging VTEC mode, a pre-defined threshold for MPH (must be moving), RPM and load must be met before the computer actuates a solenoid which directs pressurized oil into a sliding pin, just like with the original VTEC. This sliding pin connects the intake rocker arm followers together so that now, both intake valves are now following the "normal" camshaft lobe instead of just one of them. When in VTEC, since the "normal" cam lobe has the same timing and lift as the intake cam lobes of the SOHC non-VTEC engines, both engines have identical performance in the upper powerband assuming everything else is the same.

With the later VTEC-E implementations, the only difference it has with the earlier VTEC-E is that the second "normal" cam profile has been replaced with a "wild" cam profile which is identical to the original VTEC "wild" cam profile. This in essence supersedes VTEC and the earlier VTEC-E implementations since the fuel and low RPM torque benefits of the earlier VTEC-E are combined with the high performance of the original VTEC

VTEC
 

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Discussion Starter · #7 ·
I dont know how to identify my engine i want to know how to check my enginw if it is a jdm d15b or the other one d15b vtec e.. how can i check my engine to make sure that my engine is a jdm d15b?
 

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Discussion Starter · #8 ·
google is your friend


vtec and vtecE - Honda-Tech

The earliest VTEC-E implementation is a variation of SOHC VTEC which is used to increase combustion efficiency at low RPM while maintaining the mid range performance of non-vtec engines. VTEC-E is the first version of VTEC to employ the use of roller rocker arms and because of that, it forgoes the need for having 3 intake lobes for actuating the two valves—two lobes for non-VTEC operation(one small and one medium-sized lobe) and one lobe for VTEC operation(the biggest lobe). Instead, there are two different intake cam profiles per cylinder—a very mild cam lobe with little lift and a normal cam lobe with moderate lift. Because of this, at low RPM, when VTEC is not engaged, one of the two intake valves is allowed to open only a very small amount due to the mild cam lobe, forcing most of the intake charge through the other open intake valve with the normal cam lobe. This induces swirl of the intake charge which improves air/fuel atomization in the cylinder and allows for a leaner fuel mixture to be used. As the engine's speed and load increase, both valves are needed to supply a sufficient mixture. When engaging VTEC mode, a pre-defined threshold for MPH (must be moving), RPM and load must be met before the computer actuates a solenoid which directs pressurized oil into a sliding pin, just like with the original VTEC. This sliding pin connects the intake rocker arm followers together so that now, both intake valves are now following the "normal" camshaft lobe instead of just one of them. When in VTEC, since the "normal" cam lobe has the same timing and lift as the intake cam lobes of the SOHC non-VTEC engines, both engines have identical performance in the upper powerband assuming everything else is the same.

With the later VTEC-E implementations, the only difference it has with the earlier VTEC-E is that the second "normal" cam profile has been replaced with a "wild" cam profile which is identical to the original VTEC "wild" cam profile. This in essence supersedes VTEC and the earlier VTEC-E implementations since the fuel and low RPM torque benefits of the earlier VTEC-E are combined with the high performance of the original VTEC

VTEC

Ty a lot for the info.. but so far i cant get any info on google on how to check my engine if it is a d15b jdm hehehe
 

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